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748 Commits

Author SHA1 Message Date
Eric Christopher
72531479fc combine.c: Fix header comments. 
2003-05-14  Eric Christopher  <echristo@redhat.com>

	* combine.c: Fix header comments.
	(distribute_notes): Remove usage of elim_i1, elim_i2. Propagate
	to all calls and prototype.

From-SVN: r66813
 2003-05-15 00:07:02 +00:00
Eric Christopher
cafe096b40 Merge from rewrite branch. 
From-SVN: r66318
 2003-05-01 02:33:13 +00:00
J"orn Rennecke
7f0ea82ec0 Re-apply this patch: 
2002-05-16  Dale Johannesen  <dalej@apple.com>
	  * combine.c (cant_combine_insn_p):  Reenable combinations
	  involving hard regs unless CLASS_LIKELY_SPILLED_P.

From-SVN: r65689
 2003-04-16 18:41:10 +01:00
Franz Sirl
7d4444ea03 combine.c (merge_outer_ops): Fix typo. 
2003-04-01  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* combine.c (merge_outer_ops): Fix typo.

	* varasm.c (make_decl_one_only): Revert 2003-03-09 patch.

From-SVN: r65136
 2003-04-01 18:33:51 +00:00
Eric Christopher
73a39fc4f1 combine.c (can_combine_p): Allow ZERO_EXTRACT and STRICT_LOW_PART. 
2003-03-31  Eric Christopher  <echristo@redhat.com>

	* combine.c (can_combine_p): Allow ZERO_EXTRACT and STRICT_LOW_PART.
	(combinable_i3pat): Remove call to expand_field_assignment and
	#if 0'd code.

From-SVN: r65118
 2003-03-31 22:16:54 +00:00
Eric Botcazou
02484af985 re PR target/10072 ([Sparc] internal compiler error: in trunc_int_for_mode, at explow.c:54) 
PR target/10072
	* combine.c (simplify_if_then_else): Check that the mode
	has MODE_INT class before applying the (OP Z (mult COND C2))
	transformation.

From-SVN: r64785
 2003-03-24 11:29:11 +00:00
Alan Modra
70e1b8fc74 * combine.c (simplify_comparison <AND>): Use gen_int_mode. Tidy. 
From-SVN: r64703
 2003-03-22 18:31:02 +10:30
Kazu Hirata
c5c15353f3 * combine.c (make_field_assignment): Fix a warning. 
From-SVN: r64680
 2003-03-21 21:42:05 +00:00
Kazu Hirata
6e814b8d35 combine.c (make_field_assignment): Remove unnecessary AND when storing into zero_extract. 
* combine.c (make_field_assignment): Remove unnecessary AND
	when storing into zero_extract.

From-SVN: r64674
 2003-03-21 18:03:02 +00:00
Alan Modra
6a04f4e05e re PR target/10073 (powerpc cannot split insn while building rscheme) 
PR target/10073
	* combine.c (force_to_mode <NOT>): Use gen_int_mode.

From-SVN: r64564
 2003-03-19 11:58:12 +10:30
Kazu Hirata
3dc575ffdb calls.c: Fix comment formatting. 
* calls.c: Fix comment formatting.
	* cfgloopanal.c: Likewise.
	* cfgloopmanip.c: Likewise.
	* combine.c: Likewise.
	* dwarf2out.c: Likewise.
	* ggc-common.c: Likewise.
	* langhooks.c: Likewise.
	* loop-unroll.c: Likewise.
	* loop.c: Likewise.
	* ra-build.c: Likewise.
	* sbitmap.c: Likewise.
	* toplev.c: Likewise.

From-SVN: r63966
 2003-03-08 01:38:27 +00:00
Jan Hubicka
10a3fdd926 combine.c (gen_lowpart_for_combine): Update handling of subregs_of_mode 
* combine.c (gen_lowpart_for_combine): Update handling of
	subregs_of_mode
	* flow.c (life_analysis, mark_used_regs): Likewise.
	* regclass.c (subregs_of_mode): Turn into single bitmap.
	(cannot_change-mode_set_regs, invalid_mode_change_p): Update
	dealing with subregs_of_mode
	* regs.h (subregs_of_mode): Update prototype.

From-SVN: r63552
 2003-02-28 10:11:47 +00:00
James E Wilson
678e68fcfd Patch for PR 9255 
Patch for PR 9255
	* combine.c (simplify_comparison): Require integral mode when
	permuting SUBREG with AND.

From-SVN: r63514
 2003-02-27 09:46:35 -08:00
Roger Sayle
8beccec86d combine.c (combine_simplify_rtx, [...]): Use CC0_P. 
* combine.c (combine_simplify_rtx, simplfy_comparison):  Use CC0_P.
	* cse.c (invalidate_skipped_set):  Likewise.
	* integrate.c (subst_constants):  Likewise.
	* jump.c (reversed_comparison_code_parts):  Likewise.
	* loop.c (canonicalize_condition):  Likewise.
	* simplify-rtx.c (simplify_relational_operation):  Likewise.

From-SVN: r63446
 2003-02-26 03:05:40 +00:00
Jan Hubicka
2d21f7d6b3 * combine.c (simplify_shift_const): Fix previous patch. 
From-SVN: r63380
 2003-02-24 21:10:39 +00:00
Jan Hubicka
b9422b69c4 toplev.c (flag_sched2_use_superblocks, [...]): New global variables. 
* toplev.c (flag_sched2_use_superblocks, flag_sched2_use_traces):  New global variables.
	(lang_independent_options):  Add -fsched2-use-superblocks -fsced2-use-traces.
	(rest_of_compilation): Deal with it.
	* invoke.texi (-fsched2-use-traces, fsched2-use-superblocks):  Declare.
	* flags.h (flag_sched2_use_superblocks, flag_sched2_use_traces): Declare.
	* rtl.h (reg_to_stack):  Update prototype.
	* reg-stack.c (reg_to_stack): Return when something has changed;
	update liveness when executing after superblock scheduling.

	* combine.c (simplify_shift_const):  Simplify few special cases
	into constants.

From-SVN: r63183
 2003-02-20 20:56:53 +00:00
Josef Zlomek
8fa0831669 combine.c (distribute_notes): Kill REG_EXEC_COUNT. 
* combine.c (distribute_notes): Kill REG_EXEC_COUNT.
	* rtl.c (reg_note_name): Likewise.
	* rtl.h (enum reg_note): Likewise.
	* doc/invoke.texi: Likewise.
	* doc/rtl.texi: Likewise.

From-SVN: r63157
 2003-02-20 08:54:48 +00:00
Adam Nemet
8fd737543f re PR rtl-optimization/2391 (Exponential compilation time explosion in combine) 
PR opt/2391
        * combine.c: Fix spelling in comment.
        (cached_nonzero_bits): New function.
        (cached_num_sign_bit_copies): New function.
	(nonzero_bits_with_known): New macro.
	(num_sign_bit_copies_with_known): New macro.
        (nonzero_bits1): Rename from nonzero_bits.  Add three new
	arguments.  Change calls from nonzero_bits to
	nonzero_bits_with_known.
        (num_sign_bit_copies1): Rename from num_sign_bit_copies.  Add
	three new arguments.  Change calls from num_sign_bit_copies to
	num_sign_bit_copies_with_known.
        (nonzero_bits): New macro.
        (num_sign_bit_copies): New macro.
        (update_table_tick): Don't traverse identical subexpression more
	than once.
        (get_last_value_validate): Likewise.

From-SVN: r62893
 2003-02-14 07:35:44 +00:00
Jan Hubicka
cb119f8263 combine.c (combine_simplify_rtx): Fix folding of nested float_truncates. 
* combine.c (combine_simplify_rtx): Fix folding of
	nested float_truncates.

From-SVN: r62702
 2003-02-11 18:05:55 +00:00
Jan Hubicka
949824fe34 combine.c (combine_simplify_rtx): Simplify using (float_truncate (float x)) is (float x) (float_extend... 
* combine.c (combine_simplify_rtx): Simplify using
	(float_truncate (float x)) is (float x)
	(float_extend (float_extend x)) is (float_extend x).

From-SVN: r62624
 2003-02-10 10:56:05 +00:00
Richard Henderson
d116433079 * combine.c (nonzero_bits): Fix double break. 
From-SVN: r62495
 2003-02-06 11:26:42 -08:00
Richard Henderson
7dba8395e2 defaults.h (CLZ_DEFINED_VALUE_AT_ZERO): New. 
* defaults.h (CLZ_DEFINED_VALUE_AT_ZERO): New.
        (CTZ_DEFINED_VALUE_AT_ZERO): New.
        * doc/rtl.texi, doc/tm.texi: Document them.

        * combine.c (nonzero_bits) [CLZ, CTZ]: Handle the definedness
        of the value at zero properly.
        * fold-const.c (tree_expr_nonnegative_p): Likewise.
        * simplify-rtx.c (simplify_unary_operation): Likewise.

        * config/alpha/alpha.h (CLZ_DEFINED_VALUE_AT_ZERO): New.
        (CTZ_DEFINED_VALUE_AT_ZERO): New.

        * config/arm/arm.c (TARGET_INIT_BUILTINS): Remove.
        (TARGET_EXPAND_BUILTIN): Remove.
        (def_builtin, arm_init_builtins, arm_expand_builtin): Remove.
        * config/arm/arm.h (CLZ_DEFINED_VALUE_AT_ZERO): New.
        (enum arm_builtins): Remove.
        * config/arm/arm.md (UNSPEC_CLZ): Remove.
        (clzsi2): Rename from clz; use clz instead of unspec.
        (ctzsi2): New.
        * config/arm/arm-protos.h: Update.

From-SVN: r62453
 2003-02-05 14:37:54 -08:00
Richard Henderson
2928cd7aac [multiple changes] 
2003-02-01  Richard Henderson  <rth@redhat.com>

	* optabs.c (expand_unop): Use word_mode for outmode of bit scaners.
	* libgcc2.c (__ffsdi2, __clzsi2, __clzdi2, __ctzsi2, __ctzdi2,
	__popcountsi2, __popcountdi2, __paritysi2 __paritydi2): Change
	return type to Wtype.

	* libgcc-std.ver (GCC_3.4): Fix inheritance.

	* config/i386/i386.md (ffssi2): Use nonimmediate_operand for
	expander input constraint.

2003-02-01  Falk Hueffner  <falk.hueffner@student.uni-tuebingen.de>

        * optabs.h (optab_index): Add OTI_clz, OTI_ctz, OTI_popcount and
        OTI_parity.
        (clz_optab, ctz_optab, popcount_optab, parity_optab): New.
        * optabs.c (widen_clz, expand_parity): New.
        (expand_unop): Handle clz and parity.  Hardcode SImode as outmode
        for libcalls to clz, ctz, popcount, and parity.
        (init_optabs): Init clz_optab, ctz_optab, popcount_optab and
        parity_optab, and set up libfunc handlers.
        * libgcc2.c (__clzsi2, __clzdi2, __ctzsi2, __ctzdi2,
        __popcountsi2, __popcountdi2, __paritysi2 __paritydi2,
        __popcount_tab): New.
        * libgcc2.h: Declare them.
        * libgcc-std.ver (GCC_3.4): Add new functions from libgcc2.c.
        * genopinit.c (optabs): Add clz_optab, ctz_optab, popcount_optab
        and parity_optab.
        * builtin-types.def (BT_FN_INT_LONG, BT_FN_INT_LONGLONG): New.
        * builtins.def (BUILT_IN_CLZ, BUILT_IN_CTZ, BUILT_IN_POPCOUNT,
        BUILT_IN_PARITY, BUILT_IN_FFSL, BUILT_IN_CLZL, BUILT_IN_CTZL,
        BUILT_IN_POPCOUNTL, BUILT_IN_PARITYL, BUILT_IN_FFSLL,
        BUILT_IN_CLZLL, BUILT_IN_CTZLL, BUILT_IN_POPCOUNTLL,
        BUILT_IN_PARITYLL): New.
        * builtins.c (expand_builtin_unop): Rename from expand_builtin_ffs
        and add optab argument.
        (expand_builtin): Expand BUILT_IN_{FFS,CLZ,POPCOUNT,PARITY}*.
        * tree.def (CLZ_EXPR, CTZ_EXPR, POPCOUNT_EXPR, PARITY_EXPR): New.
        * expr.c (expand_expr): Handle them.
        * fold-const.c (tree_expr_nonnegative_p): Likewise.
        * rtl.def (CLZ, CTZ, POPCOUNT, PARITY): New.
        * reload1.c (eliminate_regs): Handle them.
        (elimination_effects): Likewise.
        * function.c (instantiate_virtual_regs_1): Likewise
        * genattrtab.c (check_attr_value): Likewise.
        * simplify-rtx.c (simplify_unary_operation): Likewise.
        * c-common.c (c_common_truthvalue_conversion): Handle POPCOUNT_EXPR.
        * combine.c (combine_simplify_rtx): Handle POPCOUNT and PARITY.
        (nonzero_bits): Handle CLZ, CTZ, POPCOUNT and PARITY.
        * config/alpha/alpha.md (clzdi2, ctzdi2, popcountdi2): New.
        * config/arm/arm.c (arm_init_builtins): Rename __builtin_clz to
        __builtin_arm_clz.
        * Makefile.in (LIB2FUNCS_1, LIB2FUNCS_2): Move...
        * mklibgcc.in (lib2funcs): ...here and merge.  Add new members.
        * doc/extend.texi (Other Builtins): Add new builtins.
        * doc/md.texi (Standard Names): Add new patterns.

From-SVN: r62252
 2003-02-01 11:00:02 -08:00
Jan Hubicka
434c87d422 * combine.c (combine_simplify_rtx): Use reversed_comparison_code_parts. 
From-SVN: r62246
 2003-02-01 13:16:29 +00:00
Jan Hubicka
b0c42aed31 loop.c (emit_prefetch_instructions): Do conversion at right place in RTL chain. 
* loop.c (emit_prefetch_instructions):  Do conversion at right place in
	RTL chain.

	* combine.c (simplify_set): Reverse order of ragumetns to
	REG_CANNOT_CHANGE_MODE_P
	* df.c (df_def_record_1): Likewise.
	* recog.c (register_operand): Likewise.
	* simplify-rtx.c (simplify_subreg): Likewise.
	* hard-reg-set.h (REG_CANNOT_CHANGE_MODE_P): Update use of
	CANNOT_CHANGE_MODE_CLASS.
	* regclass.c (cannot_change_mode_set_regs, invalid_mode_change_p):
	Likewise.
	* reload.c (push_reload): Likewise.
	* alpha.h (CANNOT_CHANGE_MODE_CLASS): Update definition.
	* ia64.h (CANNOT_CHANGE_MODE_CLASS): Update definition.
	* mips.h (CANNOT_CHANGE_MODE_CLASS): Update definition.
	* mips-protos.h (mips_cannot_change_mode_class): Update prototype.
	* mips.c (mips_cannot_change_mode_class): Update.
	* pa64-regs.h (CANNOT_CHANGE_MODE_CLASS): Update definition.
	* rs6000.h (CANNOT_CHANGE_MODE_CLASS): Update definition.
	* s390.h (CANNOT_CHANGE_MODE_CLASS): Update definition.
	* sh.h (CANNOT_CHANGE_MODE_CLASS): Update definition.
	* sh-protos.h (sh_cannot_change_mode_class): Update prototype.
	* sh.c (sh_cannot_change_mode_class): Update.
	* i386.h (CANNOT_CHANGE_MODE_CLASS): New.
	* tm.texi (CANNOT_CHANGE_MODE_CLASS): Update documentation.

From-SVN: r62212
 2003-01-31 23:34:17 +00:00
Richard Sandiford
6d09ef27d4 * combine.c (nonzero_bits): Fix check for negative divide operands. 
From-SVN: r62029
 2003-01-28 22:15:50 +00:00
Andreas Schwab
43196589eb combine.c (force_to_mode): Add cast to fix warning when STORE_FLAG_VALUE is negative. 
* combine.c (force_to_mode): Add cast to fix warning when
	STORE_FLAG_VALUE is negative.

From-SVN: r61961
 2003-01-28 11:02:28 +00:00
Kazu Hirata
e869aa3936 * combine.c: Fix formatting. 
From-SVN: r61862
 2003-01-26 21:53:22 +00:00
Kazu Hirata
ad487c3816 combine.c (simplify_comparison, case AND): Remove a redundant test. 
* combine.c (simplify_comparison, case AND): Remove a redundant
	test.

From-SVN: r61787
 2003-01-25 17:45:16 +00:00
Kazu Hirata
32dd366d5e basic-block.h: Fix comment formatting. 
* basic-block.h: Fix comment formatting.
	* calls.c: Likewise.
	* combine.c: Likewise.
	* convert.c: Likewise.
	* gcov.c: Likewise.
	* haifa-sched.c: Likewise.
	* libgcc2.c: Likewise.
	* loop.c: Likewise.
	* profile.c: Likewise.
	* system.h: Likewise.

From-SVN: r61478
 2003-01-18 22:32:06 +00:00
Richard Henderson
ab5ecb014b combine.c (make_compound_operation): Use SCALAR_INT_MODE_P, not INTEGRAL_MODE_P when widening extensions. 
* combine.c (make_compound_operation): Use SCALAR_INT_MODE_P,
        not INTEGRAL_MODE_P when widening extensions.

From-SVN: r61178
 2003-01-10 15:36:17 -08:00
Zack Weinberg
4977bab6ed Merge basic-improvements-branch to trunk 
From-SVN: r60174
 2002-12-16 18:23:00 +00:00
Geoffrey Keating
16823694d5 Index: gcc/ChangeLog 
2002-12-02  Geoffrey Keating  <geoffk@apple.com>

	* combine.c (combine_simplify_rtx): Add new canonicalizations.
	* doc/md.texi (Insn Canonicalizations): Document new
	canonicalizations for multiply/add combinations.
	* config/rs6000/rs6000.md: Add and modify floating add/multiply
	patterns to ensure they're used whenever they can be.

Index: gcc/testsuite/ChangeLog
2002-12-02  Geoffrey Keating  <geoffk@apple.com>

	* gcc.dg/ppc-fmadd-1.c: New file.
	* gcc.dg/ppc-fmadd-2.c: New file.
	* gcc.dg/ppc-fmadd-3.c: New file.

From-SVN: r59841
 2002-12-05 01:05:13 +00:00
Jakub Jelinek
bc02f8d3f7 combine.c (force_to_mode): Only replace with (not Y) if all bits in fuller_mask (not just mask) are set in C. 
* combine.c (force_to_mode): Only replace with (not Y) if all bits in fuller_mask
	(not just mask) are set in C.

	* gcc.c-torture/execute/20021118-3.c: New test.

From-SVN: r59295
 2002-11-20 10:43:20 +01:00
Aldy Hernandez
cff9f8d509 hard-reg-set.h (REG_CANNOT_CHANGE_MODE_P): New. 
2002-11-04  Aldy Hernandez  <aldyh@redhat.com>

	* hard-reg-set.h (REG_CANNOT_CHANGE_MODE_P): New.

	* config/rs6000/rs6000.h (CLASS_CANNOT_CHANGE_MODE_P): Remove.
	(CLASS_CANNOT_CHANGE_MODE): Remove.
	(CANNOT_CHANGE_MODE_CLASS): New.

	* config/alpha/alpha.h: Same.

	* config/ia64/ia64.h: Same.

	* config/mips/mips.h: Same.

	* config/s390/s390.h: Same.

	* config/sh/sh.h: Same.

	* config/pa/pa64-regs.h: Same.

	* config/sh/sh-protos.h (sh_cannot_change_mode_class): Add prototype.

	* config/sh/sh.c (sh_cannot_change_mode_class): New.

	* config/mips/mips-protos.h (mips_cannot_change_mode_class): Add
	prototype.

	* config/mips/mips.c (mips_cannot_change_mode_class): New.

	* doc/tm.texi (Register Classes): Remove
	CLASS_CANNOT_CHANGE_MODE and CLASS_CANNOT_CHANGE_MODE_P.
	Document CANNOT_CHANGE_MODE_CLASS.

	* reload.c (push_reload): Use CANNOT_CHANGE_MODE_CLASS.
	(push_reload): Same.

	* simplify-rtx.c (simplify_subreg): Same.

	* reload1.c (choose_reload_regs): Same.

	* recog.c (register_operand): Same.

	* regrename.c (mode_change_ok): Change to use new
	CANNOT_CHANGE_MODE_CLASS infrastructure.

	* regclass.c (cannot_change_mode_set_regs): New.
	Declare subregs_of_mode.
	(regclass): Use subregs_of_mode.
	Remove references to reg_changes_mode.
	(init_reg_sets_1): Remove class_can_change_mode and
	reg_changes_mode code.
	(invalid_mode_change_p): New.
	(dump_regclass): Use invalid_mode_change_p instead of
	class_can_change_mode.
	(regclass): Same.
	(record_operand_costs): Do not set reg_changes_mode.

	* local-alloc.c (struct qty): Remove changes_mode field.
	(alloc_qty): Remove changes_mode initialization.
	(update_qty_class): Remove set of changes_mode.
	(find_free_reg): Use subregs_of_mode.

	* global.c (find_reg): Use subregs_of_mode info.

	* rtl.h (cannot_change_mode_set_regs): New prototype.
	(invalid_mode_change_p): Same.
	(REG_CANNOT_CHANGE_MODE_P): New macro.

	* flow.c (mark_used_regs): Calculate subregs_of_mode.  Remove
	REG_CHANGES_MODE.
	(life_analysis): Clear subregs_of_mode.

	* combine.c (subst): Pass class to CLASS_CANNOT_CHANGE_MODE_P.
	Remove use of CLASS_CANNOT_CHANGE_MODE.
	(simplify_set): Same.
	(gen_lowpart_for_combine): Calculate subregs_of_mode.  Remove
	REG_CHANGES_MODE.

	* regs.h: Add extern for subregs_of_mode;
	Include hard-reg-set and basic-block.
	(REG_CHANGES_MODE): Delete.

From-SVN: r58794
 2002-11-04 16:58:39 +00:00
Kazu Hirata
3eae4643be combine.c: Fix comment formatting. 
* combine.c: Fix comment formatting.
	* loop.c: Likewise.
	* real.c: Likewise.
	* regclass.c: Likewise.
	* regmove.c: Likewise.
	* regrename.c: Likewise.
	* reg-stack.c: Likewise.
	* reload1.c: Likewise.
	* reload.c: Likewise.
	* reload.h: Likewise.
	* unroll.c: Likewise.

From-SVN: r58583
 2002-10-27 14:47:55 +00:00
Roger Sayle
dbf4f1a2ba * combine.c (simplify_set): Treat MODE_CC registers like cc0. 
From-SVN: r58148
 2002-10-15 05:01:07 +00:00
Richard Henderson
ccf7aef428 combine.c (force_to_mode): Handle FLOAT_MODE destinations for CONST_INT. 
* combine.c (force_to_mode): Handle FLOAT_MODE destinations
        for CONST_INT.

From-SVN: r57634
 2002-09-29 20:26:47 -07:00
Kazu Hirata
991b659243 builtins.def: Fix comment formatting. 
* builtins.def: Fix comment formatting.
	* c-common.def: Likewise.
	* cfgcleanup.c: Likewise.
	* combine.c: Likewise.
	* gengtype.c: Likewise.
	* params.def: Likewise.
	* predict.def: Likewise.
	* rtl.def: Likewise.
	* stab.def: Likewise.
	* stor-layout.c: Likewise.
	* tree.def: Likewise.
	* config/darwin.c: Likewise.
	* config/darwin.h: Likewise.
	* config/dbxcoff.h: Likewise.
	* config/elfos.h: Likewise.
	* config/fp-bit.c: Likewise.
	* config/freebsd-spec.h: Likewise.
	* config/interix.h: Likewise.
	* config/libgloss.h: Likewise.
	* config/linux-aout.h: Likewise.
	* config/linux.h: Likewise.
	* config/lynx-ng.h: Likewise.
	* config/lynx.h: Likewise.
	* config/netbsd-aout.h: Likewise.
	* config/netbsd.h: Likewise.
	* config/netware.h: Likewise.
	* config/psos.h: Likewise.
	* config/ptx4.h: Likewise.

From-SVN: r57624
 2002-09-29 13:16:44 +00:00
Igor Shevlyakov
855c3a2e32 combine.c (simplify_set): Don't call to force_to_mode if size of integer type is larger than... 
* combine.c (simplify_set): Don't call to force_to_mode if size
        of integer type is larger than HOST_BITS_PER_WIDE_INT.

From-SVN: r57549
 2002-09-26 14:15:26 -07:00
Kazu Hirata
da7d830409 ChangeLog: Follow spelling conventions. 
* ChangeLog: Follow spelling conventions.
	* ChangeLog.0: Likewise.
	* ChangeLog.1: Likewise.
	* ChangeLog.2: Likewise.
	* ChangeLog.3: Likewise.
	* ChangeLog.4: Likewise.
	* ChangeLog.5: Likewise.
	* ChangeLog.6: Likewise.
	* FSFChangeLog.10: Likewise.
	* FSFChangeLog.11: Likewise.
	* alias.c: Likewise.
	* basic-block.h: Likewise.
	* c-aux-info.c: Likewise.
	* c-common.c: Likewise.
	* c-common.h: Likewise.
	* c-decl.c: Likewise.
	* c-format.c: Likewise.
	* c-semantics.c: Likewise.
	* c-typeck.c: Likewise.
	* calls.c: Likewise.
	* cfganal.c: Likewise.
	* cfgloop.c: Likewise.
	* collect2.c: Likewise.
	* combine.c: Likewise.
	* conflict.c: Likewise.
	* cppexp.c: Likewise.
	* cppfiles.c: Likewise.
	* cpphash.h: Likewise.
	* cppinit.c: Likewise.
	* cpplex.c: Likewise.
	* cpplib.c: Likewise.
	* cpplib.h: Likewise.
	* cppmacro.c: Likewise.
	* cse.c: Likewise.

From-SVN: r57398
 2002-09-22 02:03:17 +00:00
Jim Wilson
a9b2f05974 Fix v850 ICE. 
* combine.c (try_combine): When split an instruction pair, where the
	first has a sign_extend src, verify that the src and dest modes match.

From-SVN: r57371
 2002-09-20 14:42:25 -07:00
Jim Wilson
ff0765200c fix subreg optimization bug introduced 2002-05-25 
fix subreg optimization bug introduced 2002-05-25
	* combine.c (simplify_set): When optimizing a subreg src with a
	cc0 dest, use GET_MODE (src) for mask instead of inner_mode.

From-SVN: r57323
 2002-09-19 16:39:34 -07:00
Dale Johannesen
307f767b38 Remove creation of invalid subreg. PR 7705, 7339, 7720. 
From-SVN: r57315
 2002-09-19 18:54:56 +00:00
Roger Sayle
f40f4c8ed1 combine.c (try_combine): Handle the case that undobuf.other_insn has been turned into a return or... 
* combine.c (try_combine): Handle the case that undobuf.other_insn
	has been turned into a return or unconditional jump, by inserting
	a BARRIER if necessary.
	(simplify_set):  Test if a condition code setter has a constant
	comparison at compile time, if so convert this insn to a no-op move
	and update/simplify the condition code user (undobuf.other_insn).

From-SVN: r56955
 2002-09-08 18:07:54 +00:00
Igor Shevlyakov
ad9df12ff5 combine.c (simplify_shift_const): Calculate rotate count correctly for vector operands. 
* combine.c (simplify_shift_const): Calculate rotate count
        correctly for vector operands.

From-SVN: r56928
 2002-09-07 20:34:16 -07:00
J"orn Rennecke
b10f218708 combine.c (make_compound_operation): Don't generate zero / sign extensions in floating point modes. 
* combine.c (make_compound_operation): Don't generate zero / sign
	extensions in floating point modes.

From-SVN: r56804
 2002-09-04 18:49:58 +01:00
Geoffrey Keating
71012d9720 machmode.h (SCALAR_INT_MODE_P): New macro to test for scaler integer mode (MODE_INT or MODE_PARTIAL_INT). 
* machmode.h (SCALAR_INT_MODE_P): New macro to test for
	scaler integer mode (MODE_INT or MODE_PARTIAL_INT).
	* explow.c (trunc_int_for_mode): Abort when the mode is not
	a scaler integer mode.
	* combine.c (expand_compound_operation): Don't expand Vector
	or Complex modes into shifts.
	(expand_field_assignment): Don't do bitwise arithmatic and
	shifts on Vector or Complex modes.
	(simplify_comparison): Don't call trunc_int_for_mode
	for VOIDmode.
	* recog.c (general_operand): Likewise.
	(immediate_operand): Likewise.
	(nonmemory_operand): Likewise.

Co-Authored-By: Steve Ellcey <sje@cup.hp.com>

From-SVN: r56443
 2002-08-19 18:18:12 +00:00
Toon Moene
73e42cf342 c-common.c (cb_register_builtins): Set __FINITE_MATH_ONLY__ to 1 if -ffinite-math-only is given, and to 0 otherwise. 
2002-08-01  Toon Moene  <toon@moene.indiv.nluug.nl>

	* c-common.c (cb_register_builtins): Set
	__FINITE_MATH_ONLY__ to 1 if -ffinite-math-only
	is given, and to 0 otherwise.
	* combine.c (simplify_if_then_else): HONOR_NANS
	implies FLOAT_MODE_P.

From-SVN: r55932
 2002-08-01 09:08:38 +00:00
Toon Moene
2e8f2e8f7d flags.h: Declare flag_finite_math_only. 
2002-07-30  Toon Moene  <toon@moene.indiv.nluug.nl>

	* flags.h: Declare flag_finite_math_only.
	Use it in definition of HONOR_NANS and
	HONOR_INFINITIES.
	* c-common.c (cb_register_builtins): Emit
	__FINITE_MATH_ONLY__ when flag_finite_math_only
	is set.
	* combine.c (simplify_if_then_else): If
	flag_finite_math_only is set, a == b has a
	definite value.
	* toplev.c: Initialize flag_finite_math_only.
	(set_flags_fast_math): Set it on -ffast-math.
	(flag_fast_math_set_p): Test it.
doc:
	* invoke.texi: Document -ffinite-math-only.
f:
	* com.c (ffe_init_options): Set
	flag_finite_math_only.
	* invoke.texi: Document -fno-finite-math-only.

From-SVN: r55887
 2002-07-30 22:23:26 +00:00
J"orn Rennecke
25c2594701 combine.c (try_combine): When converting a paradoxical subreg to an extension... 
* combine.c (try_combine): When converting a paradoxical subreg
	to an extension, take LOAD_EXTEND_OP into account.

From-SVN: r55404
 2002-07-11 22:03:51 +01:00
Roger Sayle
0e603223a0 re PR c/2454 (Test Program A0376972.c fails with gcc-20010320, works with gcc-2.95.3) 
PR c/2454
	* combine.c (nonzero_bits): LOAD_EXTEND_OP should only apply
	to SUBREGs of MEMs.  (num_sign_bit_copies): Likewise.

From-SVN: r55386
 2002-07-11 01:23:07 +00:00
J"orn Rennecke
80ba02b10c combine.c (gen_lowpart_for_combine): Handle vector modes. 
* combine.c (gen_lowpart_for_combine): Handle vector modes.
	Supply non-VOID mode to simplify_gen_subreg.

From-SVN: r55375
 2002-07-10 19:51:20 +01:00
Roger Sayle
26c347808e combine.c (combine_simplify_rtx): Add an explicit cast to avoid signed/unsigned comparison warning. 
* combine.c (combine_simplify_rtx): Add an explicit cast
	to avoid signed/unsigned comparison warning.
	(simplify_if_then_else): Likewise.
	(extended_count): Likewise.
	(simplify_shift_const): Likewise.
	(simplify_comparison): Likewise.

From-SVN: r55329
 2002-07-08 15:59:53 +00:00
Roger Sayle
3129af4c94 combine.c (struct_undo): Change types of recorded substitutions to be either "int" or "rtx"... 
* combine.c (struct_undo): Change types of recorded substitutions
	to be either "int" or "rtx", instead of "unsigned int" and "rtx".
	(do_SUBST_INT): Change types of the substitution from unsigned int
	to int, to avoid compilation warning from SUBST_INT's only caller.

	(make_extraction): Add cast to avoid compilation warning.
	(force_to_mode): Remove cast to avoid compilation warning.

From-SVN: r55221
 2002-07-03 21:00:23 +00:00
Stephen Clarke
f1b1186f6c combine.c (combine_simplify_rtx): Pass the mode of the shift count... 
* combine.c (combine_simplify_rtx): Pass the mode of the
        shift count, not the shift operation when trying to simplify
        a shift on a SHIFT_COUNT_TRUNCATED target.

From-SVN: r55085
 2002-06-28 15:34:47 -06:00
Richard Sandiford
988ef418eb * combine.c (make_extraction): Reapply to the argument of an ASHIFT. 
From-SVN: r54846
 2002-06-20 18:04:00 +00:00
Jan Hubicka
b0dd480873 * combine.c (subst): Be prepared for simplify_subreg to return VOIDmode. 
From-SVN: r54839
 2002-06-20 15:39:58 +00:00
David S. Miller
2f937369fa Delete SEQUENCE rtl usage outside of reorg and ssa passes. 
2002-06-05  David S. Miller  <davem@redhat.com>

	Delete SEQUENCE rtl usage outside of reorg and ssa passes.
	* rtl.h (gen_sequence, emit_insns, emit_insns_before,
	emit_insns_before_scope, emit_insns_after,
	emit_insns_after_scope): Delete declaration.
	* ada/misc.c (insert_code_for): Use emit_insn* instead of
	emit_insns_foo.
	* config/alpha/alpha.c (alpha_set_memflags_1): Abort on SEQUENCE.
	(alpha_set_memflags): Fix comment.
	(set_frame_related_p): Use get_insns instead of gen_sequence.
	* config/alpha/alpha.md (setjmp receiver splitter): Avoid
	emitting no insns.
	* config/arm/arm.c (arm_finalize_pic): Use get_insns instead of
	gen_sequence.
	(arm_gen_load_multiple, arm_gen_store_multiple): Likewise.
	* config/fr30/fr30.c (fr30_move_double): Likewise.
	* config/i386/i386.c (ix86_expand_int_movcc, ix86_expand_movstr):
	Likewise.
	* config/ia64/ia64.c (spill_restore_mem): Likewise.
	* config/ia64/ia64.md (conditional move spliiter): Avoid emitting
	no insns.
	* config/m32r/m32r.c (gen_split_move_double): Use get_insns
	instead of gen_sequence.
	* config/mips/mips.c (embedded_pic_fnaddr_reg): Likewise.
	(mips_expand_prologue, mips16_gp_pseudo_reg): Likewise.
	* config/sh/sh.c (sh_need_epilogue): Likewise.
	* config/sparc/sparc.md (current_function_calls_alloca, flat): New
	attributes.
	(setjmp pattern and split): Use them to avoid splitter which emits
	no RTL.
	* genattrtab.c (main): Emit include of function.h
	* config/stormy16/stormy16.c (xstormy16_split_cbranch): Use
	get_insns instead of gen_sequence.
	* config/cris/cris.c (cris_split_movdx): Likewise.
	* emit-rtl.c (emit_insns*): Kill.
	(try_split): Expect insn list instead of SEQUENCE.
	(make_jump_insn_raw, make_call_insn_raw): Fix comments.
	(emit_*insn*): Reimplement to work with INSN lists and PATTERNs.
	Make them abort if a SEQUENCE is given and RTL checking is
	enabled.
	(emit_*_scope): Don't forget to set scope on final insn.
	(gen_sequence): Move from here...
	* ssa.c (gen_sequence): To here as private function.
	* builtins.c (expand_builtin_apply_args): Use emit_insn_foo, fix
	comments.
	(expand_builtin_return, expand_builtin_mathfn): Likewise.
	(expand_builtin_strlen): Use get_insns instead of gen_sequence.
	(expand_builtin_saveregs): Use emit_insn_foo, fix comments.
	(expand_builtin_expect_jump): Use get_insns and fix comments.
	* calls.c (try_to_integrate): Use emit_insn_foo.
	(expand_call, emit_library_call_value_1): Likewise.
	* expr.c (emit_queue): Handle insn lists instead of SEQUENCE.
	(emit_move_insn_1): Use get_insns instead of gen_sequence.
	(expand_expr): Use emit_insn_foo.
	* cfgrtl.c (commit_one_edge_insertion): Use emit_insn_foo.
	* except.c (build_post_landing_pads): Likewise.
	* flow.c (attempt_auto_inc): Likewise.
	* stmt.c (expand_fixup, fixup_gotos, expand_nl_handler_label,
	expand_nl_goto_receivers, expand_decl_cleanup): Likewise.
	* function.c (fixup_var_refs_insn): Use get_insns instead of
	gen_sequence.
	(fixup_var_refs_1): Likewise and expect insn list from gen_foo.
	(fixup_memory_subreg): Use get_insns instead of gen_sequence.
	(fixup_stack_1, purge_addressof_1, expand_main_function,
	get_arg_pointer_save_area): Likewise.
	(optimize_bit_field, instantiate_virtual_regs_1, assign_parms,
	expand_function_end): Use emit_insn_foo.
	(record_insns, keep_stack_depressed): Work with insn list instead
	of SEQUENCE, fix comments.
	* ifcvt.c (noce_emit_store_flag, noce_try_store_flag,
	noce_try_store_flag_constants, noce_try_store_flag_inc,
	noce_try_store_flag_mask, noce_emit_cmove, noce_try_cmove_arith,
	noce_try_minmax, noce_try_abs): Use emit_insn_foo.
	(noce_process_if_block): Use get_insns instead of gen_sequence.
	* optabs.c (add_equal_note): Work with insn list, fix comments.
	(expand_binop): Expect insn list from GEN_FCN(), use emit_insn_foo.
	(expand_unop, expand_complex_abs, expand_unop_insn,
	expand_no_conflict_block): Likewise.
	(gen_move_insn): Use get_insns instead of gen_sequence.
	(gen_cond_trap): Likewise.
	* integrate.c (copy_rtx_and_substitute): Likewise.
	(emit_initial_value_sets): Use emit_insn_foo.
	* reload1.c (emit_output_reload_insns, emit_reload_insns): Likewise.
	(fixup_abnormal_edges): Avoid losing REG_NOTES more intelligently
	now that RTL generators give insn lists.
	* sibcall.c (replace_call_placeholder): Use emit_insn_foo.
	* doloop.c (doloop_modify, doloop_modify_runtime): Use get_insns
	instead of gen_sequence.
	(doloop_optimize): Work with insn lists instead of SEQUENCE rtl.
	* explow.c (emit_stack_save, emit_stack_restore): Use get_insns
	instead of gen_sequence.
	* loop.c (move_movables, emit_prefetch_instructions,
	gen_add_mult, check_dbra_loop, gen_load_of_final_value):
	Likewise.
	(loop_regs_update): Work with insn list instead of SEQUENCE rtl.
	(product_cheap_p): Likewise, and add commentary about RTL wastage
	here.
	* lcm.c (optimize_mode_switching): Use get_insns instead of
	gen_sequence.
	* profile.c (gen_edge_profiler): Likewise.
	* regmove.c (copy_src_to_dest): Likewise.
	* reg-stack.c (compensate_edge): Likewise and fix comment.
	* gcse.c (process_insert_insn): Likewise.
	(insert_insn_end_bb): Work with insn list instead of SEQUENCE rtl.
	* jump.c (delete_prior_computation): Update comment.
	* genemit.c (gen_expand, gen_split, main): Use get_insns instead
	of gen_sequence, update comments to match.
	* recog.c (peephole2_optimize): Work with insn lists instead of
	SEQUENCE rtl.
	* sched-vis.c (print_pattern): Abort on SEQUENCE.
	* unroll.c (unroll_loop, find_splittable_givs, final_giv_value):
	Use get_insns instead of gen_sequence.
	(copy_loop_body): Likewise and don't emit dummy NOTE.
	* genrecog.c: Don't mention SEQUENCE rtl in comments.
	* combine.c (try_combine): Expect insn lists from split generator.
	* reorg.c (relax_delay_slots): Emit SEQUENCE into insn list by
	hand.

From-SVN: r54497
 2002-06-11 05:22:48 -07:00
Jakub Jelinek
156755acc0 re PR rtl-optimization/6842 (internal compiler error using MMX intrinsics with optimization) 
PR optimization/6842
	* combine.c (combine_simplify_rtx) [SUBREG]: Don't ICE if VOIDmode
	operand subreg cannot be simplified.

	* gcc.dg/20020531-1.c: New test.

From-SVN: r54462
 2002-06-10 23:47:45 +02:00
Jeff Law
e50126e858 emit-rtl.c (init_emit): Add hard registers to regno_reg_rtx. 
* emit-rtl.c (init_emit): Add hard registers to regno_reg_rtx.
	* combine.c (move_deaths): Use regno_reg_rtx for hard regs rather
	than creating a new register.
	(distribute_notes): Likewise.
	* df.c (df_reg_use_gen): Likewise.
	(df_reg_clobber_gen): Likewise.
	(df_ref_record): Likewise.
	* expr.c (use_regs): Likewise.
	* flow.c (propagate_one_insn): Likewise.
	(mark_set_1): Likewise.
	(mark_used_reg): Likewise.
	* reload.c (emit_reload_insns): Likewise.

From-SVN: r54358
 2002-06-07 19:51:22 -06:00
Jan Hubicka
ba4f7968b5 loop.c (emit_prefetch_instructions): Properly place the address computation. 
* loop.c (emit_prefetch_instructions): Properly place the address computation.


	* basic-block.h (basic_block_for_insn, BLOCK_FOR_INSN): Kill.
	(set_block_for_insn): Turn into macro.
	* cfgbuild.c (find_basic_block): Do not clear basic_block_for_insn.
	* cfglayout.c (insn_scopes): Kill.
	(scope_to_insns_initialize): Do not use insn_scopes.
	(scope_to_insns_finalize): Likewise.
	(duplicate_insn_chain): Likewise.
	(cfg_layout_initialize, cfg_layout_finalize): Do not turn scopes to notes.
	* cfgrtl.c (basic_block_for_insn): Kill.
	(delete_insn_and_edges, delete_insn_chain_and_edges): Simplify.
	(create_basic_block_structure): Use reorder_insns.
	(compute_bb_for_insn): Do not use basic_block_for_insn.
	(merge_blocks_nomove): Likewise.
	(update_bb_for_insn): Likewise.
	(verify_flow_info): Likewise.
	(set_block_for_insn): Kill.
	* combine.c (try_combine): Update gen_rtx_INSN call.
	* emit-rtl.c (gen_label_rtx): Update gen_rtx_CODE_LABEL call.
	(mark_insn_raw, make_jump_insn_raw, make_call_insn_raw): Clear
	scopes and BBs.
	(add_insn_after, add_insn_before, remove_insn, reorder_insns): Simplify.
	(emit_note_before, emit_note_after, emit_line_note_after, emit_note):
	Clear BB.
	(emit_insns_after): Simplify.
	(emit_copy_of_insn_after): Copy scope.
	* final.c (final_start_function): Lower scopes.
	* flow.c (check_function_return_warnings): Do not rely on deleted insn.
	* integrate.c (copy_insn_list): Cope scopes.
	* jump.c (duplicate_loop_exit_test): LIkewise; simplify.
	* loop.c (loop_optimize): Do not care block notes.
	* print-rtl.c (print_rtx): Print BB.
	* recog.c (apply_change_group): Simplify.
	* rtl.c (copy_rtx): Handle 'B'.
	* rtl.def (INSN, CALL_INSN, JUMP_INSN, NOTE): Add extra fields.
	* rtl.h (Field accessors): Update indexes.
	* sched-ebb.c (schedule_ebbs): Do not lower notes.
	* sched-rgn.c (schedule_insns): Likewise.
	* toplev.c (rest_of_compilation): Lower notes.
	* unroll.c (unroll_loop): Do not care scoping notes.
	(copy_loop_body): Copy scopes.

From-SVN: r54188
 2002-06-02 21:09:54 +00:00
Zdenek Dvorak
d55bc08175 basic-block.h (last_basic_block): Defined as synonym for n_basic_blocks. 
* basic-block.h (last_basic_block): Defined as synonym for
	n_basic_blocks.
	* cfganal.c (mark_dfs_back_edges, flow_reverse_top_sort_order_compute,
	flow_depth_first_order_compute, flow_preorder_transversal_compute,
	flow_dfs_compute_reverse_init): Replaced relevant occurences of
	n_basic_blocks with last_basic_block.
	* cfgbuild.c (make_edges): Likewise.
	* cfgloop.c (flow_loop_scan, flow_loops_find): Likewise.
	* cfgrtl.c (verify_flow_info, purge_all_dead_edges): Likewise.
	* combine.c (combine_instructions): Likewise.
	* df.c (df_alloc, df_analyse_1, df_analyse, iterative_dataflow_sbitmap,
	iterative_dataflow_bitmap): Likewise.
	* dominance.c (init_dom_info, calc_dfs_tree_nonrec, calc_dfs_tree,
	calc_idoms, idoms_to_doms): Likewise.
	* flow.c (update_life_info_in_dirty_blocks, free_basic_block_vars):
	Likewise.
	* gcse.c (gcse_main, alloc_gcse_mem, compute_local_properties,
	compute_hash_table, expr_reaches_here_p, one_classic_gcse_pass,
	one_cprop_pass, compute_pre_data, pre_expr_reaches_here_p,
	one_pre_gcse_pass, compute_transpout, delete_null_pointer_checks_1,
	delete_null_pointer_checks, compute_code_hoist_vbeinout,
	hoist_expr_reaches_here_p, hoist_code, one_code_hoisting_pass,
	compute_store_table, build_store_vectors): Likewise.
	* haifa-sched.c (sched_init): Likewise.
	* ifcvt.c (if_convert): Likewise.
	* lcm.c (compute_antinout_edge, compute_laterin, compute_insert_delete,
	pre_edge_lcm, compute_available, compute_nearerout,
	compute_rev_insert_delete, pre_edge_rev_lcm, optimize_mode_switching):
	Likewise.
	* predict.c (estimate_probability, process_note_prediction,
	note_prediction_to_br_prob): Likewise.
	* profile.c (GCOV_INDEX_TO_BB, BB_TO_GCOV_INDEX): Likewise.
	* recog.c (split_all_insns, peephole2_optimize): Likewise.
	* regrename.c (copyprop_hardreg_forward): Likewise.
	* resource.c (init_resource_info): Likewise.
	* sched-rgn.c (build_control_flow, find_rgns, compute_trg_info,
	init_regions, schedule_insns): Likewise.
	* ssa-ccp.c (ssa_const_prop): Likewise.
	* ssa-dce.c (ssa_eliminate_dead_code): Likewise.
	* ssa.c (compute_dominance_frontiers,
	compute_iterated_dominance_frontiers, convert_to_ssa): Likewise.

	* df.c (df_refs_unlink): Fix FOR_EACH_BB usage (in #if 0'ed code)
	* gcse.c (alloc_rd_mem, alloc_avail_expr_mem): Use n_blocks for vector
	sizes consistently.

From-SVN: r53924
 2002-05-27 13:45:44 +00:00
Andreas Jaeger
9b89393b82 combine.c (combine_instructions): Do not indent #if for traditional C. 
* combine.c (combine_instructions): Do not indent #if for
	traditional C.

From-SVN: r53891
 2002-05-26 10:03:42 +02:00
Kazu Hirata
8c1d52a397 * combine.c (simplify_set): Remove an unnecessary subreg. 
From-SVN: r53873
 2002-05-25 19:47:11 +00:00
Zdenek Dvorak
e0082a7265 bb-reorder.c (make_reorder_chain, [...]): Use FOR_EACH_BB macros to iterate over basic block chain. 
* bb-reorder.c (make_reorder_chain, make_reorder_chain_1):
	Use FOR_EACH_BB macros to iterate over basic block chain.
	* cfg.c (clear_edges, clear_bb_flags, dump_flow_info,
	alloc_aux_for_blocks, clear_aux_for_blocks, alloc_aux_for_edges):
	Likewise.
	* cfganal.c (set_edge_can_fallthru_flag, flow_call_edges_add,
	find_unreachable_blocks, create_edge_list, verify_edge_list,
	remove_fake_edges, add_noreturn_fake_exit_edges,
	flow_preorder_transversal_compute, flow_dfs_compute_reverse_execute):
	Likewise.
	* cfgbuild.c (make_edges, find_basic_blocks, find_many_sub_basic_blocks,
	find_sub_basic_blocks): Likewise.
	* cfgcleanup.c (try_optimize_cfg, delete_unreachable_blocks):
	Likewise.
	* cfglayout.c (record_effective_endpoints, cleanup_unconditional_jumps):
	Likewise.
	* cfgloop.c (flow_loops_cfg_dump, flow_loops_find):
	Likewise.
	* cfgrtl.c (compute_bb_for_insn, tidy_fallthru_edges,
	commit_edge_insertions, commit_edge_insertions_watch_calls,
	print_rtl_with_bb, verify_flow_info, purge_all_dead_edges): Likewise.
	* combine.c (combine_instructions, reg_dead_at_p): Likewise.
	* conflict.c (conflict_graph_compute): Likewise.
	* df.c (df_bitmaps_alloc, df_bitmaps_free, df_alloc, df_analyse_1,
	df_modified_p, df_refs_unlink, df_dump): Likewise.
	* dominance.c (calc_dfs_tree, calculate_dominance_info): Likewise.
	* final.c (compute_alignments): Likewise.
	* flow.c (update_life_info, update_life_info_in_dirty_blocks,
	delete_noop_moves, calculate_global_regs_live, allocate_bb_life_data,
	count_or_remove_death_notes): Likewise.
	* gcse.c (oprs_unchanged_p, record_last_reg_set_info,
	compute_hash_table, compute_kill_rd, compute_rd, compute_ae_kill,
	classic_gcse, compute_transp, cprop, compute_pre_data,
	compute_transpout, invalidate_nonnull_info,
	delete_null_pointer_checks_1, delete_null_pointer_checks,
	compute_code_hoist_vbeinout, hoist_code, compute_ld_motion_mems,
	compute_store_table, build_store_vectors, store_motion): Likewise.
	* global.c (global_conflicts, mark_elimination): Likewise.
	* graph.c (print_rtl_graph_with_bb): Likewise.
	* haifa-sched.c (sched_init): Likewise.
	* ifcvt.c (if_convert): Likewise.
	* lcm.c (compute_antinout_edge, compute_laterin, compute_insert_delete,
	compute_available, compute_nearerout, compute_rev_insert_delete,
	optimize_mode_switching): Likewise.
	* local-alloc.c (local_alloc, update_equiv_regs): Likewise.
	* predict.c (estimate_probability, note_prediction_to_br_prob,
	propagate_freq, counts_to_freqs, expensive_function_p,
	estimate_bb_frequencies): Likewise.
	* profile.c (instrument_edges, get_exec_counts,
	compute_branch_probabilities, compute_checksum, branch_prob,
	find_spanning_tree): Likewise.
	* recog.c (split_all_insns, peephole2_optimize): Likewise.
	* reg-stack.c (reg_to_stack, convert_regs_entry, convert_regs):
	Likewise.
	* regclass.c (scan_one_insn, regclass): Likewise.
	* regmove.c (mark_flags_life_zones, regmove_optimize,
	record_stack_memrefs): Likewise.
	* regrename.c (regrename_optimize, copyprop_hardreg_forward): Likewise.
	* reload1.c (reload, reload_combine, fixup_abnormal_edges): Likewise.
	* resource.c (find_basic_block): Likewise.
	* sched-ebb.c (schedule_ebbs): Likewise.
	* sched-rgn.c (is_cfg_nonregular, build_control_flow,
	find_single_block_region, find_rgns, schedule_insns)
	* sibcall.c (optimize_sibling_and_tail_recursive_call)
	* ssa-ccp.c (optimize_unexecutable_edges,
	ssa_ccp_df_delete_unreachable_insns): Likewise.
	* ssa-dce.c (ssa_eliminate_dead_code): Likewise.
	* ssa.c (find_evaluations, compute_dominance_frontiers_1,
	rename_block, convert_to_ssa, compute_conservative_reg_partition,
	compute_coalesced_reg_partition, rename_equivalent_regs,
	convert_from_ssa): Likewise.
	* config/ia64/ia64.c (emit_predicate_relation_info, process_epilogue,
	process_for_unwind_directive): Likewise.

	* df.c (FOR_ALL_BBS): Removed.
	* gcse.c (struct null_pointer_info): Type of current_block field
	changed.
	(struct reg_avail_info): Type of last_bb field changed.
	* config/ia64/ia64.c (block_num): Removed.
	(need_copy_state): Type changed.
	(last_block): New.

From-SVN: r53804
 2002-05-23 19:23:51 +00:00
Jakub Jelinek
2dd36f90d8 combine.c (force_to_mode): Use gen_int_mode. 
* combine.c (force_to_mode): Use gen_int_mode.
	Don't clear CONST_INT bits outside of mode.

	* gcc.dg/20020517-1.c: New test.

From-SVN: r53750
 2002-05-22 23:35:56 +02:00
Zdenek Dvorak
f6366fc7ad bb-reorder.c (make_reorder_chain_1): Modified. 
* bb-reorder.c (make_reorder_chain_1): Modified.
	* cfganal.c (can_fallthru, flow_call_edges_add,
	flow_preorder_transversal_compute): Modified.
	* cfgbuild.c (make_edges, find_basic_blocks, find_many_sub_basic_blocks,
	find_sub_basic_blocks): Modified.
	* cfgcleanup.c (try_simplify_condjump, try_optimize_cfg): Modified.
	* cfglayout.c (skip_insns_after_block, fixup_reorder_chain,
	fixup_fallthru_exit_predecessor, cfg_layout_redirect_edge): Modified.
	* cfgrtl.c (tidy_fallthru_edges, verify_flow_info): Modified.
	* combine.c (this_basic_block): Type changed to basic_block.
	(combine_instructions, set_nonzero_bits_and_sign_copies, try_combine,
	nonzero_bits, num_sign_bit_copies, get_last_value_validate,
	get_last_value, distribute_notes, distribute_links): Modified.
	* final.c (compute_alignments): Modified.
	* flow.c (regno_uninitialized, regno_clobbered_at_setjmp): Modified.
	* function.c (thread_prologue_and_epilogue_insns): Modified.
	* gcse.c (compute_code_hoist_vbeinout): Modified.
	* global.c (build_insn_chain): Modified.
	* ifcvt.c (find_if_block, find_cond_trap): Modified.
	* predict.c (last_basic_block_p, note_prediction_to_br_prob): Modified.
	* regmove.c (regmove_optimize): Modified.
	* resource.c (find_basic_block): Modified.
	* sched-ebb.c (schedule_ebbs): Modified.
	* ssa-dce.c (find_control_dependence, find_pdom): Modified.

From-SVN: r53695
 2002-05-21 20:37:43 +00:00
Dale Johannesen
4c11675d61 Back out my previous patch; causes bootstrap problem for Ada (86 Linux) 
From-SVN: r53671
 2002-05-20 18:20:45 +00:00
Richard Henderson
0b17ab2f5b Revert "Basic block renumbering removal", and two followup patches. 
From-SVN: r53537
 2002-05-16 19:31:56 -07:00
Dale Johannesen
63b827c591 Reenable combination of hard regs unless CLASS_LIKELY_SPILLED_P. 
From-SVN: r53531
 2002-05-16 21:30:48 +00:00
Zdenek Dvorak
355e4ec445 Basic block renumbering removal. 
From-SVN: r53522
 2002-05-16 10:34:53 -07:00
Zack Weinberg
5692c7bc60 emit-rtl.c (global_rtl): Update comment. 
* emit-rtl.c (global_rtl): Update comment.
	(const_double_htab, const_double_htab_hash,
	const_double_htab_hash, lookup_const_double): New.
	(const_int_htab_hash, const_int_htab_eq): Remove const
	qualifiers, which cause tons of warnings with RTL checking on.
	(gen_rtx_CONST_DOUBLE): Deleted.
	(const_double_from_real_value): New function - bears some
	resemblance to the former immed_real_const_1.
	(immed_double_const): Moved here from varasm.c and
	simplified.
	(gen_rtx_REG): Make REGNO unsigned to squelch warnings.
	(gen_rtx_SUBREG): Use gen_rtx_raw_SUBREG.
	(gen_rtx): Use immed_double_const.
	(init_emit_once): Initialize the const_double_htab.  Use
	REAL_VALUE_FROM_INT where possible.  Can now use
	CONST_DOUBLE_FROM_REAL_VALUE when setting up const_tiny_rtx.
	* varasm.c (struct varasm_status): Remove x_const_double_chain.
	(const_double_chain, immed_real_const, clear_const_double_mem): Delete.
	(immed_double_const, immed_real_const_1): Moved to emit-rtl.c.
	(init_varasm_status, mark_varasm_status): Don't touch
	x_const_double_chain.

	* output.h: Delete prototype for clear_const_double_mem.
	* real.h: Make REAL_VALUE_TYPE a macro again.  Remove leading
	'0' slot from all CONST_DOUBLE_FORMAT definitions.  Prototype
	const_double_from_real_value, not immed_real_const_1, and use
	it to define CONST_DOUBLE_FROM_REAL_VALUE.  Define new macro
	CONST_DOUBLE_ATOF.
	* rtl.h (CONST_DOUBLE_CHAIN): Kill.
	(CONST_DOUBLE_LOW, CONST_DOUBLE_HIGH): Adjust.
	(gen_rtx_CONST_DOUBLE, immed_real_const): Delete prototypes.
	(gen_rtx_REG): Second arg is unsigned.

	* gengenrtl.c (special_rtx): Take out CONST_DOUBLE.
	(excluded_rtx): New, return true for CONST_DOUBLE.
	(genmacro): Write nothing for excluded codes.
	* combine.c (combine_simplify_rtx): Use CONST_DOUBLE_FROM_REAL_VALUE.
	* expr.c (expand_expr): Likewise.
	* ggc-common.c (ggc_mark_rtx_children_1): Don't mark the
	CONST_DOUBLE_CHAIN.
	* toplev.c (rest_of_compilation): Don't call
	clear_const_double_mem.

	* config/rs6000/rs6000.c (rs6000_float_const): Delete.
	(rs6000_hash_constant): Remove CONST_DOUBLE special case.
	(toc_hash_eq): Remove CONST_DOUBLE and LABEL_REF special cases.
	* config/rs6000/rs6000-protos.h: Don't prototype rs6000_float_const.
	* config/c4x/c4x.md, config/rs6000/rs6000.md: Use CONST_DOUBLE_ATOF.
	* config/dsp16xx/dsp16xx.md, config/mips/mips.md,
	config/pa/pa.md: Use CONST_DOUBLE_FROM_REAL_VALUE.
	* config/sparc/sparc.md, config/sparc/sparc.c: Use immed_double_const.

From-SVN: r53409
 2002-05-13 04:50:20 +00:00
Kazu Hirata
e0a2f70599 combine.c: Fix comment formatting. 
* combine.c: Fix comment formatting.
	* expr.c: Likewise.
	* genautomata.c: Likewise.
	* stmt.c: Likewise.
	* tree.h: Likewise.

From-SVN: r53044
 2002-05-02 13:55:35 +00:00
Franz Sirl
da6886f66b combine.c (find_split_point): Use gen_int_mode. 
2002-04-29  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* combine.c (find_split_point): Use gen_int_mode.

From-SVN: r52916
 2002-04-30 00:38:23 +00:00
Bernd Schmidt
2e676d7878 Prevent aborts taking a vector mode subreg of a constant integer 
From-SVN: r52467
 2002-04-18 11:29:19 +00:00
Jakub Jelinek
578fc63d14 re PR c/6223 (internal compiler error in Wine-20020310) 
PR c/6223
	* combine.c (if_then_else_cond): Use trunc_int_for_mode on nz.

	* gcc.dg/20020411-1.c: New test.

From-SVN: r52176
 2002-04-11 22:56:29 +02:00
Jeff Law
5add6d1a6d combine.c (simplify_comparison): Avoid narrowing a comparison with a paradoxical subreg when... 
* combine.c (simplify_comparison): Avoid narrowing a comparison
	with a paradoxical subreg when doing so would drop signficant bits.

Co-Authored-By: Hans-Peter Nilsson <hp@bitrange.com>

From-SVN: r51785
 2002-04-03 03:21:29 +00:00
Jakub Jelinek
30984c5791 re PR rtl-optimization/6086 (Reload misoptimizes DImode PREINC on PPC) 
PR optimization/6086
	* combine.c (combine_simplify_rtx): If simplify_rtx failed because
	of SUBREG of volatile MEM or because the MEM was mode dependent,
	return CLOBBER instead of unmodified SUBREG.

From-SVN: r51606
 2002-03-30 19:50:34 +01:00
Jakub Jelinek
0a0440c94f combine.c (set_nonzero_bits_and_sign_copies): Don't call nonzero_bits if not needed. 
* combine.c (set_nonzero_bits_and_sign_copies): Don't call
	nonzero_bits if not needed.
	(nonzero_bits) [XOR]: Likewise.
	(nonzero_bits) [REG]: Use reg_last_set_nonzero_bits even if
	reg_last_set_mode and mode are both MODE_INT, but not equal.
	(record_value_for_reg): Compute reg_last_set_nonzero_bits
	in nonzero_bits_mode for MODE_INT modes.

From-SVN: r51551
 2002-03-29 09:01:20 +01:00
Jeff Law
8bc528064f re PR rtl-optimization/3311 (GCC-SH: gcc loses result of AND operation due to force_to_mode bug) 
* combine.c (simplify_and_const_int): Make sure to apply mask
	when force_to_mode returns a constant integer.  PR3311.

From-SVN: r51532
 2002-03-28 16:33:52 -07:00
Alan Modra
67e469d71a combine.c (simplify_comparison <ASHIFTRT, LSHIFTRT>): Correct test for overflow of constant. 
* combine.c (simplify_comparison <ASHIFTRT, LSHIFTRT>): Correct
	test for overflow of constant.

From-SVN: r51349
 2002-03-26 09:33:13 +10:30
Alan Modra
d4c5ac1fc5 combine.c (simplify_comparison): When widening modes, ignore sign extension on CONST_INTs. 
* combine.c (simplify_comparison): When widening modes, ignore
	sign extension on CONST_INTs.

From-SVN: r51216
 2002-03-23 12:23:44 +10:30
Lars Brinkhoff
2496c7bd5f emit-rtl.c (gen_int_mode): New function. 
* emit-rtl.c (gen_int_mode): New function.
        * rtl.h: Prototype for it.
        * combine.c (make_extraction, simplify_comparison), expmed.c
        (store_bit_field, expand_mult_highpart, expand_divmod), expr.c
        (convert_modes, store_field), optabs.c (expand_fix),
        simplify-rtx.c (neg_const_int, simplify_unary_real),

        * config/rs6000/rs6000.c, config/rs6000/rs6000.md:
        Use it instead of GEN_INT (trunc_int_for_mode (...)).

From-SVN: r51030
 2002-03-19 10:00:43 -08:00
Kaveh R. Ghazi
27e486c5d9 * combine.c (make_extraction): Fix error in last change. 
From-SVN: r50533
 2002-03-10 17:14:02 +00:00
Richard Kenner
0a7ec76355 * combine.c (make_extraction): Don't make extension of CONST_INT. 
From-SVN: r50491
 2002-03-09 07:26:57 -05:00
Jan Hubicka
c51d95ecef cfgrtl.c (purge_dead_edges): Set BB_DRITY flags if edge has been removed; fix return value. 
* cfgrtl.c (purge_dead_edges): Set BB_DRITY flags if edge has been
	removed; fix return value.
	* combine.c (combine_instructions): Dirtify blocks where we failed to
	update liveness; purge dead edges; use update_life_info_in_dirty_blocks.
	* toplev.c (rest_of_compilation): Do not purge_dead_edges after combine.

From-SVN: r50454
 2002-03-08 20:32:15 +00:00
Richard Sandiford
71925bc04f defaults.h (MODE_HAS_NANS, [...]): New. 
* defaults.h (MODE_HAS_NANS, MODE_HAS_INFINITIES): New.
	(MODE_HAS_SIGNED_ZEROS, MODE_HAS_SIGN_DEPENDENT_ROUNDING): New.
	* flags.h (HONOR_NANS, HONOR_INFINITIES, HONOR_SIGNED_ZEROS): New.
	(HONOR_SIGN_DEPENDENT_ROUNDING): New.
	* builtins.c (expand_builtin_mathfn): Use HONOR_NANS.
	* c-common.c (truthvalue_conversion): Reduce x - y != 0 to x != y
	unless x and y could be infinite.
	(expand_unordered_cmp): New, mostly split from expand_tree_builtin.
	Check that the common type of both arguments is a real, even for
	targets without unordered comparisons.  Allow an integer argument
	to be compared against a real.
	(expand_tree_builtin): Use expand_unordered_cmp.
	* combine.c (combine_simplify_rtx): Use the new HONOR_... macros.
	* cse.c (fold_rtx): Likewise.  Fix indentation.
	* fold-const.c (fold_real_zero_addition_p): New.
	(fold): Use it, and the new HONOR_... macros.
	* ifcvt.c (noce_try_minmax): Use the new HONOR_... macros.
	* jump.c (reversed_comparison_code_parts): After searching for
	the true comparison mode, use HONOR_NANS to decide whether it
	can be safely reversed.
	(reverse_condition_maybe_unordered): Remove IEEE check.
	* simplify-rtx.c (simplify_binary_operation): Use the new macros
	to decide which simplifications are valid.  Allow the following
	simplifications for IEEE: (-a + b) to (b - a), (a + -b) to (a - b),
	and (a - -b) to (a + b).
	(simplify_relational_operation): Use HONOR_NANS.
	* doc/tm.texi: Document the MODE_HAS_... macros.

From-SVN: r50401
 2002-03-07 11:37:16 +00:00
Richard Earnshaw
145d3bf292 combine.c (simplify_comparison): If simplifying a logical shift right and compare with constant... 
* combine.c (simplify_comparison): If simplifying a logical shift
right and compare with constant, force the comparison to unsigned.

From-SVN: r50400
 2002-03-07 10:39:50 +00:00
Steve Ellcey
7879b81e6c rtl.texi (SUBREG_PROMOTED_UNSIGNED_P): Change definition to take ptr_extend into account as third type of extension. 
* doc/rtl.texi (SUBREG_PROMOTED_UNSIGNED_P): Change definition
        to take ptr_extend into account as third type of extension.
        (SUBREG_PROMOTED_UNSIGNED_SET): Definition of new macro to set bit
        fields used by SUBREG_PROMOTED_UNSIGNED_P.
        * rtl.h (SUBREG_PROMOTED_UNSIGNED_SET): New macro.
        (SUBREG_PROMOTED_UNSIGNED_P): Change to return -1 as well as 0 or 1.
        * calls.c (precompute_arguments): Use new macro.
        (expand_call): Ditto.
        * combine.c (nonzero_bits): Ditto.
        (record_promoted_value): Ditto.
        * expr.c (store_expr): Ditto.
        (expand_expr): Ditto.
        * function.c (assign_parms): Ditto.

From-SVN: r50174
 2002-02-28 17:19:52 -08:00
Alexandre Oliva
4161da1219 combine.c (do_SUBST): Sanity check substitutions of CONST_INTs... 
* combine.c (do_SUBST): Sanity check substitutions of
CONST_INTs, and reject them in SUBREGs and ZERO_EXTENDs.
(subst): Simplify SUBREG or ZERO_EXTEND instead of SUBSTing a
CONST_INT into its operand.
(known_cond): Likewise, for ZERO_EXTEND.
* simplify-rtx.c (simplify_unary_operation): Fix condition to
allow for simplification of wide modes.  Reject CONST_INTs in
ZERO_EXTEND when their actual mode is not given.

From-SVN: r49920
 2002-02-20 23:15:00 +00:00
Aldy Hernandez
69ef87e2bc i386.md ("mmx_uavgv8qi3"): Use const_vector. 
2002-02-19  Aldy Hernandez  <aldyh@redhat.com>

	* config/i386/i386.md ("mmx_uavgv8qi3"): Use const_vector.
	("mmx_uavgv4hi3"): Same.
	("pmulhrwv4hi3"): Same.

	* tree-inline.c (walk_tree): Handle vectors.

	* c-common.c (constant_expression_warning): Handle vectors.
	(overflow_warning): Same.

	* sched-deps.c (sched_analyze_2): Handle vectors.

	* rtlanal.c (rtx_unstable_p): Handle vectors.
	(rtx_varies_p): Same.
	(count_occurrences): Same.
	(regs_set_between_p): Same.
	(modified_between_p): Same.
	(modified_in_p): Same.
	(volatile_insn_p): Same.
	(volatile_refs_p): Same.
	(side_effects_p): Same.
	(may_trap_p): Same.
	(inequality_comparisons_p): Same.
	(replace_regs): Same.
	(computed_jump_p_1): Same.

	* rtl.c (DEF_MACHMODE): Change all definitions to accept 8th
	argument.
	(inner_mode_array): New.
	(copy_rtx): Handle vectors.
	(copy_most_rtx): Same.
	(rtx_equal_p): Same.
	(get_mode_alignment): Adjust for vectors.

	* resource.c (mark_referenced_resources): Handle vectors.
	(mark_set_resources): Same.

	* reload1.c (eliminate_regs): Handle vectors.
	(elimination_effects): Same.
	(scan_paradoxical_subregs): Same.

	* reload.c (subst_reg_equivs): Handle vectors.

	* regrename.c (scan_rtx): Handle vectors.

	* regclass.c (reg_scan_mark_refs): Handle vectors.

	* recog.c (find_single_use_1): Handle vectors.

	* local-alloc.c (equiv_init_varies_p): Handle vectors.
	(contains_replace_regs): Same.
	(memref_referenced_p): Same.

	* integrate.c (copy_rtx_and_substitute): Handle vectors.
	(subst_constants): Same.

	* genattrtab.c (attr_copy_rtx): Handle vectors.
	(encode_units_mask): Same.
	(clear_struct_flag): Same.
	(count_sub_rtxs): Same.

	* gcse.c (want_to_gcse_p): Handle vectors.
	(oprs_unchanged_p): Same.
	(hash_expr_1): Same.
	(oprs_not_set_p): Same.
	(expr_killed_p): Same.
	(compute_transp): Same.
	(store_ops_ok): Same.

	* function.c (purge_addressof_1): Do not allow paradoxical subregs
	of vectors.
	(fixup_var_refs_1): Same.
	(instantiate_virtual_regs_1): Same.

	* fold-const.c (operand_equal_p): Handle vectors.
	(fold): Same.
	(rtl_expr_nonnegative_p): Same.

	* flow.c (mark_used_regs): Handle vectors.

	* df.c (df_uses_record): Handle vectors.

	* cselib.c (cselib_subst_to_values): Handle vectors.
	(cselib_mem_conflict_p): Same.
	(hash_rtx): Same.

	* cse.c (canon_reg): Handle vectors.
	(fold_rt): Same.
	(cse_process_notes): Same.
	(count_reg_usage): Same.
	(canon_hash): Same.

	* alias.c (nonlocal_mentioned_p): Add case for CONST_VECTOR.

	* combine.c (mark_used_regs_combine): Add case for CONST_VECTOR.

	* emit-rtl.c (init_emit_once): Generate const0_rtx for vectors.
	(gen_rtx): Handle CONST_VECTOR.
	(gen_const_vector_0): New.
	(copy_rtx_if_shared): CONST_VECTORs can be shared.
	(reset_used_flags): Same.
	(copy_insn_1): Same.
	(initializer_constant_valid_p): Handle VECTOR_CST.

	* doc/c-tree.texi (Expression trees): Document VECTOR_CST.

	* doc/rtl.texi (Constants): Document const_vector.
	(CONST0_RTX): Update for vectors.
	(RTL sharing): Same.

	* print-tree.c (print_node): Add case for VECTOR_CST.

	* tree.h (TREE_VECTOR_CST_ELTS): New.
	(struct tree_vector): New.
	(union tree_node): Add vector node.
	(build_vector): Add prototype.

	* tree.def (VECTOR_CST): New.

	* tree.c (build_vector): New.

	* expmed.c (make_tree): Handle CONST_VECTOR.

	* rtl.h (CONSTANT_P): CONST_VECTORs are constants too.
	(CONST_VECTOR_ELT): New.
	(CONST_VECTOR_NUNITS): New.

	* machmode.h (GET_MODE_INNER): New.
	(DEF_MACHMODE): Accept 8th arg.

	* machmode.def: Add 8th argument for vector inner mode.
	Add inner vector modes for vectors.

	* rtl.def (VEC_CONST): Remove.
	(CONST_VECTOR): New.

	* expr.c (clear_storage): Allow vectors.
	(is_zeros_p): Handle VECTOR_CST.

	* varasm.c (output_constant_pool): Handle vectors.
	(rtx_const): Add veclo and vechi fields.
	(kind): Add RTX_VECTOR.
	(decode_rtx_const): Add case for vector.

	* config/rs6000/rs6000-protos.h: Add zero_constant.

	* config/rs6000/rs6000.c (rs6000_emit_move): Handle vector
	constants.  Force easy vector constants into memory.
	(easy_vector_constant): New.
	(emit_easy_vector_constant): New.
	(rs6000_legitimize_reload_address): Do not generate bad reloads on
	darwin.

	* config/rs6000/rs6000.md ("altivec_lvx"): Reflect what
	instruction does.
	("altivec_lvxl"): Same.
	(altivec_lvebx): Same.
	(altivec_lvehx): Same.
	(altivec_lvewx): Same.
	("*movv4si_const0"): New.
	("*movv4sf_const0"): New.
	("*movv8hi_const0"): New.
	("*movv16qi_const0"): New.

From-SVN: r49853
 2002-02-19 02:53:41 +00:00
Alexandre Oliva
9a360704f9 combine.c (known_cond): After replacing the REG of a SUBREG, try to simplify it. 
* combine.c (known_cond): After replacing the REG of a SUBREG, try
to simplify it.

From-SVN: r49775
 2002-02-14 19:30:42 +00:00
Alexandre Oliva
cddd8b72ad combine.c (try_combine): Apply substitutions in CALL_INSN_FUNCTION_USAGE too. 
* combine.c (try_combine): Apply substitutions in
CALL_INSN_FUNCTION_USAGE too.

From-SVN: r49670
 2002-02-11 06:07:03 +00:00
Richard Henderson
ebbb0a63f4 combine.c (nonzero_bits): Re-introduce special case for sp/fp/ap wrt REGNO_POINTER_ALIGN. 
* combine.c (nonzero_bits): Re-introduce special case for
        sp/fp/ap wrt REGNO_POINTER_ALIGN.

From-SVN: r49501
 2002-02-04 15:06:04 -08:00
Richard Henderson
563c12b029 combine.c (force_to_mode): Remove STACK_BIAS code. 
* combine.c (force_to_mode): Remove STACK_BIAS code.
        (nonzero_bits): Likewise.  Replace sp/fp special case with
        REGNO_POINTER_ALIGN.

        * config/sparc/sparc.h (FRAME_POINTER_REGNUM): Change to SFP.
        (HARD_FRAME_POINTER_REGNUM): New.
        (FIRST_PSEUDO_REGISTER, REG_CLASS_CONTENTS): Update.
        (FIXED_REGS, CALL_USED_REGS): Update.
        (REG_ALLOC_ORDER, REGISTER_NAMES): Update.
        (CONDITIONAL_REGISTER_USAGE): Update for HFP.
        (HARD_REGNO_NREGS): Update for SFP.
        (STACK_POINTER_OFFSET): Include bias here ...
        (FIRST_PARM_OFFSET): ... not here.
        (STACK_BIAS): Remove.
        (INIT_EXPANDERS): New.
        (STARTING_FRAME_OFFSET): Do not include bias.
        (ELIMINABLE_REGS, CAN_ELIMINATE, INITIAL_ELIMINATION_OFFSET): New.
        (REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P): Update for SFP.
        (REG_OK_FOR_INDEX_P, REG_OK_FOR_BASE_P): Likewise.
        * config/sparc/aout.h (DBX_REGISTER_NUMBER): Update for HFP.
        * config/sparc/litecoff.h, config/sparc/sol2.h: Likewise.
        * config/sparc/sparc.c (mem_min_alignment): Update for HFP.
        (sparc_nonflat_function_prologue, epilogue_renumber): Likewise.
        (MUST_SAVE_REGISTER): Likewise.
        (sparc_flat_function_prologue): Likewise.
        (sparc_flat_function_epilogue): Likewise.
        (HARD_FRAME_POINTER_MASK): Rename from FRAME_POINTER_MASK.
        (sparc_init_modes): SFP is GENERAL_REGS.
        (sparc_builtin_saveregs): SFP does not have bias applied.

From-SVN: r49486
 2002-02-04 10:16:07 -08:00
Jakub Jelinek
fa85240399 combine.c (recog_for_combine): Create a dummy insn with PATTERN pat for recog. 
* combine.c (recog_for_combine): Create a dummy insn with PATTERN
	pat for recog.

	* gcc.dg/20020201-4.c: New test.

From-SVN: r49473
 2002-02-04 10:40:57 +01:00
Alan Modra
d0c9db3079 combine.c (simplify_and_const_int): Don't trunc_int_for_mode "nonzero" as that might add "1" bits. 
* combine.c (simplify_and_const_int): Don't trunc_int_for_mode
	"nonzero" as that might add "1" bits.  Ensure "constop" is
	properly sign extened.
	(force_to_mode): Tweak for sign extended constop.

From-SVN: r49112
 2002-01-23 10:12:07 +10:30
Franz Sirl
3b5708e7e6 combine.c (simplify_and_const_int): Properly sign-extend CONSTOP. 
2002-01-21  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* combine.c (simplify_and_const_int): Properly sign-extend CONSTOP.

From-SVN: r49057
 2002-01-21 22:19:55 +00:00
Kazu Hirata
3ef42a0c4f bitmap.h: Fix comment formatting. 
* bitmap.h: Fix comment formatting.
	* combine.c: Likewise.
	* cppfiles.c: Likewise.
	* c-pragma.h: Likewise.
	* c-typeck.c: Likewise.
	* df.c: Likewise.
	* dwarf2out.c: Likewise.
	* function.c: Likewise.
	* gcc.c: Likewise.
	* genattrtab.c: Likewise.
	* gthr-win32.h: Likewise.
	* haifa-sched.c: Likewise.
	* predict.c: Likewise.
	* rtlanal.c: Likewise.
	* rtl.h: Likewise.
	* unwind-dw2-fde.h: Likewise.
	* unwind-pe.h: Likewise.
	* vmsdbgout.c: Likewise.

From-SVN: r48987
 2002-01-18 13:40:36 +00:00
Hartmut Penner
6c2d03d0d1 combine.c (simplify_shift_const): Always generate new rtx for shift expression instead of reusing given expression. 
* combine.c (simplify_shift_const): Always generate new rtx
  for shift expression instead of reusing given expression.

From-SVN: r48831
 2002-01-14 15:37:55 +00:00
Craig Rodrigues
3e92902c7e re PR other/5299 (then -> than fixes) 
2002-01-11  Craig Rodrigues  <rodrigc@gcc.gnu.org>

        PR other/5299
        * config/ns32k/ns32k.md: Fix spelling mistake of "than" in comments.
        * combine.c (force_to_mode): Same.
        * reload1.c (clear_reload_reg_in_use): Same.

From-SVN: r48780
 2002-01-11 22:46:40 +00:00
Kazu Hirata
47073a3824 * combine.c (expand_field_assignment): Use subreg_lsb(). 
From-SVN: r48742
 2002-01-10 18:30:00 +00:00
Kazu Hirata
d2604ae914 * combine.c (can_combine_p): Fix a comment typo. 
From-SVN: r48712
 2002-01-10 07:37:51 +00:00
Graham Stott
5bc5a8f9b7 * combine.c (combine_instructions): Fix typo. 
From-SVN: r48630
 2002-01-08 09:57:48 +00:00
Graham Stott
6253d571fa combine.c (combine_instructions): Replace XEXP (links, 0) with link. 
* combine.c (combine_instructions): Replace XEXP (links, 0)
        with link.

From-SVN: r48595
 2002-01-07 08:46:27 +00:00
Kazu Hirata
cf0d940861 * combine.c: Fix formatting. 
From-SVN: r48569
 2002-01-05 20:32:44 +00:00
Kazu Hirata
505ddab6ec builtins.c: Fix formatting. 
* builtins.c: Fix formatting.
	* c-typeck.c: Likewise.
	* combine.c: Likewise.
	* expr.c: Likewise.
	* loop.c: Likewise.

From-SVN: r48512
 2002-01-03 16:05:54 +00:00
Geoffrey Keating
2ef1a7f960 combine.c (try_combine): Mask off sign bits when combining stores to the low and high parts of a... 
* combine.c (try_combine): Mask off sign bits when combining
	stores to the low and high parts of a two-word value.

From-SVN: r48339
 2001-12-28 07:52:44 +00:00
Jakub Jelinek
7958f3c750 combine.c (nonzero_bits): If using reg_nonzero_bits, we don't know anything about bits outside of X mode. 
* combine.c (nonzero_bits): If using reg_nonzero_bits,
	we don't know anything about bits outside of X mode.
	(num_sign_bit_copies): Likewise.

From-SVN: r48239
 2001-12-21 12:07:59 +01:00
Jakub Jelinek
2a3b43b609 combine.c (distribute_notes): Avoid adding REG_LABEL notes to JUMP_INSNs with JUMP_LABEL. 
* combine.c (distribute_notes): Avoid adding REG_LABEL notes
	to JUMP_INSNs with JUMP_LABEL.

	* gcc.c-torture/execute/20011219-1.c: New test.

From-SVN: r48198
 2001-12-20 09:23:42 +01:00
Zack Weinberg
29655d3d5c combine.c (record_dead_and_set_regs): Use regs_invalidated_by_call. 
* combine.c (record_dead_and_set_regs): Use
	regs_invalidated_by_call.  Don't note stores for CALL_INSNs.

From-SVN: r48009
 2001-12-14 21:20:03 +00:00
Richard Henderson
8deb751450 combine.c (simplify_and_const_int): Simplify (AND (PLUS X Y) C) if C has only low bits set and doesn't intersect... 
* combine.c (simplify_and_const_int): Simplify (AND (PLUS X Y) C)
        if C has only low bits set and doesn't intersect with X or Y.

From-SVN: r47921
 2001-12-11 21:58:12 -08:00
Alan Matsuoka
a13287e15d combine.c (combine_simplify_rtx): Can't simplify cases that use mode class MODE_CC. 
2001-11-30 Alan Matsuoka <alanm@redhat.com>

	* combine.c (combine_simplify_rtx) : Can't simplify
	cases that use mode class MODE_CC.

From-SVN: r47917
 2001-12-12 03:20:14 +00:00
Richard Henderson
0051b6cae4 combine.c (simplify_shift_const): Move SHIFT_COUNT_TRUNCATED simplification above out of range check. 
* combine.c (simplify_shift_const): Move SHIFT_COUNT_TRUNCATED
        simplification above out of range check.

From-SVN: r47912
 2001-12-11 18:42:41 -08:00
Jeffrey A Law
805f169411 combine.c (known_cond): Check mode of each operand to determine if COND is comparing floating point values. 
* combine.c (known_cond): Check mode of each operand to determine
        if COND is comparing floating point values.

From-SVN: r47855
 2001-12-10 15:52:26 -07:00
Joseph Myers
eaec9b3d7e ChangeLog.2, [...]: Fix spelling errors. 
* ChangeLog.2, ChangeLog.3, ChangeLog.4, ChangeLog.5, ChangeLog,
	cfg.c, cfganal.c, cfgcleanup.c, cfglayout.c, cfgloop.c, cfgrtl.c,
	collect2.c, combine.c, config.in, configure, configure.in,
	conflict.c, dwarf2out.c, dwarfout.c, except.c, final.c, flow.c,
	genattrtab.c, ggc-page.c, jump.c, lcm.c, predict.c, reg-stack.c,
	reload1.c, rtlanal.c, sched-rgn.c, toplev.c, unwind-dw2-fde.h: Fix
	spelling errors.

From-SVN: r46928
 2001-11-11 11:25:28 +00:00
Kaveh R. Ghazi
b016d07e15 combine.c (num_sign_bit_copies): Avoid signed/unsigned warnings. 
* combine.c (num_sign_bit_copies): Avoid signed/unsigned
	warnings.

From-SVN: r46625
 2001-10-30 03:24:08 +00:00
Richard Henderson
4a8d0c9c68 rtl.h (REG_VTABLE_REF): New. 
* rtl.h (REG_VTABLE_REF): New.
        * rtl.c (reg_note_name): Add it.
        * combine.c (distribute_notes): Handle it.
        * final.c (final_scan_insn): Handle it.
        * tree.def (VTABLE_REF): New.
        * expr.c (expand_expr): Handle it.
        * varasm.c (assemble_vtable_entry, assemble_vtable_inherit): New.
        * output.h: Declare them.
cp/
        * class.c (build_vtable_entry_ref): Create a VTABLE_REF instead
        of an asm statement.
        (build_vtbl_ref_1): Split out from build_vtbl_ref.
        (build_vfn_ref): Use it to handle vtable descriptors before
        calling build_vtable_entry_ref.
        * decl2.c (output_vtable_inherit): Use assemble_vtable_inherit.
testsuite/
        * g++.old-deja/g++.other/crash18.C: Add -S to options.

From-SVN: r46195
 2001-10-11 11:48:42 -07:00
Richard Henderson
7f16eed442 * combine.c (try_combine): Handle a SEQUENCE of one insn. 
From-SVN: r46177
 2001-10-10 23:55:16 -07:00
Stan Shebs
b36948478c alias.c: Remove uses of "register" specifier in declarations of arguments and local... 
2001-10-10  Stan Shebs  <shebs@apple.com>

        * alias.c: Remove uses of "register" specifier in declarations
        of arguments and local variables.
        * c-common.c: Ditto.
        * c-convert.c: Ditto.
        * c-decl.c: Ditto.
        * c-format.c: Ditto.
        * c-semantics.c: Ditto.
        * c-typeck.c: Ditto.
        * caller-save.c: Ditto.
        * calls.c: Ditto.
        * cfg.c: Ditto.
        * cfgbuild.c: Ditto.
        * cfgrtl.c: Ditto.
        * collect2.c: Ditto.
        * combine.c: Ditto.
        * convert.c: Ditto.
        * cppexp.c: Ditto.
        * cppfiles.c: Ditto.
        * cse.c: Ditto.
        * dbxout.c: Ditto.
        * defaults.h: Ditto.
        * df.c: Ditto.
        * dwarf2out.c: Ditto.
        * dwarfout.c: Ditto.
        * emit-rtl.c: Ditto.
        * explow.c: Ditto.
        * expmed.c: Ditto.
        * expr.c: Ditto.
        * final.c: Ditto.
        * fix-header.c: Ditto.
        * floatlib.c: Ditto.
        * flow.c: Ditto.
        * fold-const.c: Ditto.
        * function.c: Ditto.
        * gcc.c: Ditto.
        * gcse.c: Ditto.
        * gen-protos.c: Ditto.
        * genattrtab.c: Ditto.
        * gencheck.c: Ditto.
        * genconfig.c: Ditto.
        * genemit.c: Ditto.
        * genextract.c: Ditto.
        * genflags.c: Ditto.
        * gengenrtl.c: Ditto.
        * genoutput.c: Ditto.
        * genpeep.c: Ditto.
        * genrecog.c: Ditto.
        * gensupport.c: Ditto.
        * global.c: Ditto.
        * gmon.c: Ditto.
        * graph.c: Ditto.
        * haifa-sched.c: Ditto.
        * hard-reg-set.h: Ditto.
        * hash.c: Ditto.
        * integrate.c: Ditto.
        * jump.c: Ditto.
        * lists.c: Ditto.
        * local-alloc.c: Ditto.
        * loop.c: Ditto.
        * mips-tdump.c: Ditto.
        * mips-tfile.c: Ditto.
        * optabs.c: Ditto.
        * prefix.c: Ditto.
        * print-rtl.c: Ditto.
        * read-rtl.c: Ditto.
        * real.c: Ditto.
        * recog.c: Ditto.
        * reg-stack.c: Ditto.
        * regclass.c: Ditto.
        * regmove.c: Ditto.
        * reload.c: Ditto.
        * reload1.c: Ditto.
        * reorg.c: Ditto.
        * resource.c: Ditto.
        * rtl.c: Ditto.
        * rtlanal.c: Ditto.
        * scan.c: Ditto.
        * sched-deps.c: Ditto.
        * sched-rgn.c: Ditto.
        * sdbout.c: Ditto.
        * simplify-rtx.c: Ditto.
        * stmt.c: Ditto.
        * stor-layout.c: Ditto.
        * toplev.c: Ditto.
        * tradcif.y: Ditto.
        * tradcpp.c: Ditto.
        * tree.c: Ditto.
        * unroll.c: Ditto.
        * varasm.c: Ditto.
        * xcoffout.c: Ditto.

From-SVN: r46173
 2001-10-11 03:16:15 +00:00
Kazu Hirata
6d2f888735 calls.c: Fix formatting. 
* calls.c: Fix formatting.
	* c-decl.c: Likewise.
	* cfgcleanup.c: Likewise.
	* combine.c: Likewise.
	* cppfiles.c: Likewise.
	* cpplib.c: Likewise.
	* cppmacro.c: Likewise.
	* crtstuff.c: Likewise.
	* cse.c: Likewise.
	* dwarf2out.c: Likewise.
	* expmed.c: Likewise.
	* expr.c: Likewise.
	* fold-const.c: Likewise.
	* function.c: Likewise.
	* gcse.c: Likewise.
	* genattrtab.c: Likewise.
	* ggc-page.c: Likewise.
	* integrate.c: Likewise.
	* libgcc2.c: Likewise.
	* loop.c: Likewise.
	* optabs.c: Likewise.
	* profile.c: Likewise.
	* protoize.c: Likewise.
	* real.c: Likewise.
	* recog.c: Likewise.
	* reload1.c: Likewise.
	* reload.c: Likewise.
	* reorg.c: Likewise.
	* resource.c: Likewise.
	* sched-rgn.c: Likewise.
	* sdbout.c: Likewise.
	* stmt.c: Likewise.
	* toplev.c: Likewise.
	* varasm.c: Likewise.

From-SVN: r46145
 2001-10-10 11:33:39 +00:00
Jan Hubicka
3c030e88e7 basic-block.h (free_bb_for_insn): Declare. 
* basic-block.h (free_bb_for_insn): Declare.
	* bb-reorder.c (label_for_bb): Use block_label.
	(emit_jump_to_block_after): Remove.
	(insert_intra_1): Do not update block_for_insn.
	(insert_inter_bb_scope_notes): Likewise; update bb->end
	* cfg.c (free_bb_for_insn): New.
	(try_rediret_by_replacing_jump): Avoid set_block_for_new_insns call.
	(force_nonfallthru_and_redirect): Likewise; do not update BB boundaries.
	(commit_one_edge_insertion): Likewise.
	(commit_one_edge_insertion): Do not update BB boundary.
	(commit_edge_insertions): Do not call compute_bb_for_insn.
	* cfgbuild.c (find_basic_blocks): Do not free basic_block_for_insn.
	* cfgcleanup.c (merge_blocks_move_predecessor): Use reorder_insns_nobb.
	(merge_blocks_move_successor_nojumps): Likewise.
	(try_crossjump_to_edge): Do not update block_for_insn.
	* combine.c (combine_instructions): Remove compute_bb_for_insn call.
	* df.c (df_pattern_emit_later): Do not update BB boundary.
	(df_jump_pattern_emit_after): Likewise.
	(df_insn_move_before): Use emit_insn_before.
	* emit-rtl.c (try_split): Emit after trial to get bb boundary updated
	 properly.
	(add_insn_after, add_insn_before, emit_insns_after): Update BB
	boundaries and basic_block_for_insn.
	(reorder_insns_nobb): Rename from reorder_insns.
	(reorder_insns): New.
	(emit_block_insn_before, emit_block_insn_after): Kill.
	* flow.c (check_function_return_warnings): Do not call
	compute_bb_for_insn; Do not free basic_block_for_insn.
	(attempt_auto_inc): Do not update basic_block_for_insn.
	* function.c (emit_return_into_block): Likewise;
	do not update BB boundaries.
	* gcse.c (handle_avail_expr): Do not update basic_block_for_insn.
	(insert_insn_end_bb): Use emit_insn_before; Likewise.
	(pre_insert_copy_insn): Likewise.
	(update_ld_motion_notes): Likewise.
	(insert_insn_start_bb): Likewise.
	(replace_store_insn): Likewise.
	* ifcvt.c (noce_process_if_block): Likewise.
	(if_convert): Do not call compute_bb_for_insn.
	* lcm.c (optimize_mode_switching): Do not update BB boundaries.
	Use emit_insn_before and emit_insn_after.
	* recog.c (split_all_insns): Do not update BB boundaries;
	Do not call compute_bb_for_insn.
	(peephole2_optimize): Do not update BB boundaries.
	* reg-stack.c (emit_pop_insn): Use emit_insn_after and
	emit_insn_before.
	(emit_swap_insn): Likewise.
	(convert_regs_1): Likewise.
	* reload1.c (reload): Call compute_bb_for_insn.
	* rtl.h (reorder_insns_nobb): Declare.
	* ssa.c (rename_equivalent_regs): Use emit_insn_before.
	* toplev.c (rest_of_compilation): Call free_bb_for_insn
	at places CFG is invalidated; do not call compute_bb_for_insn.

	* cfg.c (expunge_block): Invalidate BB structure.

	* (merge_blocks_nomove): Update properly BLOCK_FOR_INSN
	array.

	* cfg.c (verify_flow_info): Verify the basic_block_for_insn array.

From-SVN: r45647
 2001-09-16 20:21:30 +00:00
Richard Sandiford
b1c4394d5d combine.c (simplify_shift_const): Treat shifts by the mode size as undefined. 
* combine.c (simplify_shift_const): Treat shifts by the mode
	size as undefined.

From-SVN: r45538
 2001-09-11 08:38:14 +00:00
Richard Henderson
fa4e13e035 combine.c (combine_simplify_rtx): Don't reverse condition if there is no reverse for the condition. 
* combine.c (combine_simplify_rtx): Don't reverse condition
        if there is no reverse for the condition.
        (simplify_comparison): Don't simplify subregs from INT to FP.

        * gcc.c-torture/execute/ieee/fp-cmp-4.c (main): Make "data" static.
        * gcc.c-torture/execute/ieee/fp-cmp-5.c: New.

From-SVN: r45220
 2001-08-27 17:59:33 -07:00
Lars Brinkhoff
1322177dbd Makefile.in, [...]: replace "GNU CC" with "GCC". 
* Makefile.in, alias.c, basic-block.h, bb-reorder.c, bitmap.c,
	bitmap.h, builtin-types.def, builtins.c, builtins.def,
	c-aux-info.c, c-common.c, c-common.def, c-common.h,
	c-convert.c, c-decl.c, c-dump.c, c-dump.h, c-errors.c,
	c-format.c, c-lang.c, c-lex.c, c-lex.h, c-parse.in,
	c-pragma.c, c-pragma.h, c-semantics.c, c-tree.h, c-typeck.c,
	caller-save.c, calls.c, collect2.c, collect2.h, combine.c,
	conditions.h, config.gcc, configure.frag, configure.in,
	conflict.c, convert.c, convert.h, cppspec.c, crtstuff.c,
	cse.c, cselib.c, cselib.h, dbxout.c, dbxout.h, defaults.h,
	dependence.c, df.c, df.h, diagnostic.c, diagnostic.h,
	doloop.c, dominance.c, dwarf.h, dwarf2.h, dwarf2asm.c,
	dwarf2asm.h, dwarf2out.c, dwarf2out.h, dwarfout.c,
	emit-rtl.c, errors.c, errors.h, except.c, except.h,
	exgettext, explow.c, expmed.c, expr.c, expr.h, final.c,
	fixproto, flags.h, flow.c, fold-const.c, fp-test.c,
	function.c, function.h, gbl-ctors.h, gcc.c, gcc.h, gcc.hlp,
	gccspec.c, gcov-io.h, gcse.c, genattr.c, genattrtab.c,
	gencheck.c, gencodes.c, genconfig.c, genemit.c,
	genextract.c, genflags.c, gengenrtl.c, genmultilib,
	genopinit.c, genoutput.c, genpeep.c, genrecog.c,
	gensupport.c, gensupport.h, ggc-callbacks.c, ggc-common.c,
	ggc-none.c, ggc-page.c, ggc-simple.c, ggc.h, global.c,
	graph.c, graph.h, gthr-aix.h, gthr-dce.h, gthr-posix.h,
	gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h,
	gthr-win32.h, gthr.h, haifa-sched.c, halfpic.c, halfpic.h,
	hard-reg-set.h, hwint.h, ifcvt.c, input.h, insn-addr.h,
	integrate.c, integrate.h, jump.c, lcm.c, libgcc2.c,
	libgcc2.h, lists.c, local-alloc.c, loop.c, loop.h,
	machmode.def, machmode.h, main.c, mbchar.c, mbchar.h,
	mips-tdump.c, mips-tfile.c, mklibgcc.in, mkmap-flat.awk,
	mkmap-symver.awk, optabs.c, output.h, params.c, params.def,
	params.h, predict.c, predict.def, predict.h, prefix.c,
	prefix.h, print-rtl.c, print-tree.c, profile.c, protoize.c,
	read-rtl.c, real.c, real.h, recog.c, recog.h, reg-stack.c,
	regclass.c, regmove.c, regrename.c, regs.h, reload.c,
	reload.h, reload1.c, reorg.c, resource.c, resource.h, rtl.c,
	rtl.def, rtl.h, rtlanal.c, sbitmap.c, sbitmap.h,
	sched-deps.c, sched-ebb.c, sched-int.h, sched-rgn.c,
	sched-vis.c, sdbout.c, sdbout.h, sibcall.c, simplify-rtx.c,
	ssa-ccp.c, ssa-dce.c, ssa.c, ssa.h, stmt.c, stor-layout.c,
	stringpool.c, system.h, timevar.c, timevar.def, timevar.h,
	tlink.c, toplev.c, toplev.h, tree.c, tree.def, tree.h,
	tsystem.h, unroll.c, unwind-dw2-fde.c, unwind-dw2-fde.h,
	unwind-dw2.c, unwind-pe.h, unwind-sjlj.c, unwind.h,
	unwind.inc, varasm.c, varray.c, varray.h, xcoffout.c,
	xcoffout.h: replace "GNU CC" with "GCC".

From-SVN: r45105
 2001-08-22 14:35:51 +00:00
Zack Weinberg
da92057001 expmed.c (mode_for_extraction): New function. 
* expmed.c (mode_for_extraction): New function.
	(store_bit_field, extract_bit_field): Use it.
	* expr.h: Prototype it and provide an enum for its first argument.

	* combine.c, function.c, recog.c: Don't include insn-codes.h.
	Use mode_for_extraction rather than testing HAVE_insv/extv/extzv
	and digging through the insn_data tables.
	* Makefile.in: Update dependencies.

From-SVN: r45086
 2001-08-22 00:33:33 +00:00
Zack Weinberg
ef89d648b8 optabs.h (OTI_flodiv, [...]): Kill. 
* optabs.h (OTI_flodiv, flodiv_optab): Kill.
	* genopinit.c: Put floating point divide insns in sdiv_optab.
	* expr.c (expand_expr): Use sdiv_optab, not flodiv_optab.
	* config/gofast.h, config/c4x/c4x.h,
	config/ia64/hpux_longdouble.h, config/mips/mips.h,
	config/pa/long_double.h, config/rs6000/sysv4.h,
	config/sparc/sparc.h: Put floating point divide libcalls in sdiv_optab.
	* optabs.c (init_optab): Break into new_optab, init_optab, init_optabv.
	(init_optabs): Use init_optabv for overflow-trapping optabs.
	Don't init flodiv_optab.  Give mov_optab, movstrict_optab, and
	cmp_optab RTX codes so have_insn_for can find them.

	* optabs.c (expand_simple_binop, expand_simple_unop,
	have_insn_for, gen_sub3_insn): New interfaces.
	* expr.h: Prototype new functions.
	(enum optab_methods): Move here from optabs.h.

	* builtins.c, combine.c, doloop.c, function.c, ifcvt.c,
	loop.c, profile.c, simplify-rtx.c, stmt.c, unroll.c:
	Use new	functions instead of working directly with optabs.
	* doloop.c, ifcvt.c, loop.c, profile.c, simplify-rtx.c,
	unroll.c: Don't include optabs.h.
	* caller-save.c, combine.c, function.c, stmt.c: Just include
	insn-codes.h, not optabs.h.
	* Makefile.in: Update dependencies.

	* combine.c (make_compound_operation, simplify_comparison):
	Fix typos testing for this or that instruction.

From-SVN: r45008
 2001-08-18 19:59:46 +00:00
Zack Weinberg
e78d8e5137 expr.h: Split out optab- and libfunc-related code to... 
* expr.h: Split out optab- and libfunc-related code to...
	* optabs.h, libfuncs.h: ... these new headers.

	* Makefile.in (CONFIG_H, EXPR_H): Take out insn-codes.h.
	(OPTABS_H): New.
	(various .o rules): Add $(OPTABS_H) and/or libfuncs.h to
	dependencies.
	* mkconfig.sh: Don't include insn-codes.h from config.h.

	* reload.h: Use #ifdef GCC_INSN_CODES_H to decide whether
	enum insn_code is available.  Move reload_in_optab and
	reload_out_optab array declarations to optabs.h.
	* regmove.c (gen_add3_insn): Move to optabs.c, export from
	there, prototype in expr.h.
	* gencodes.c: Cleanup: zap global variables, don't use
	printf where puts will do, don't bother defining MAX_INSN_CODE
	which nothing uses, let CODE_FOR_nothing get its value implicitly.

	* genemit.c, genopinit.c: Include optabs.h in generated file.
	* genoutput.c: Include insn-codes.h in generated file.
	* builtins.c, caller-save.c, combine.c, doloop.c, explow.c,
	expmed.c, expr.c, function.c, ifcvt.c, loop.c, optabs.c, profile.c,
	reload1.c, simplify-rtx.c, stmt.c, unroll.c, config/alpha/alpha.c,
	config/arm/arm.c, config/c4x/c4x.c, config/clipper/clipper.c,
	config/i386/i386.c, config/ia64/ia64.c, config/mn10300/mn10300.c,
	config/pj/pj.c, config/sh/sh.c, config/sparc/sparc.c:
	Include optabs.h.
	* builtins.c, calls.c, dwarf2out.c, except.c, expr.c, function.c,
	optabs.c, stmt.c, config/c4x/c4x.c, config/clipper/clipper.c,
	config/m88k/m88k.c, config/sparc/sparc.c:
	Include libfuncs.h.
	* reload.c: Include expr.h and optabs.h before reload.h.
	* config/alpha/alpha.c: Include tree.h before reload.h.
	* config/pa/pa.c: Include expr.h, optabs.h, libfuncs.h,
	and reload.h in that order.
	* config/sparc/sparc.c: Include debug.h.
	* recog.c: Include insn-codes.h.

cp:
	* Make-lang.in (cp/except.o): Add libfuncs.h to dependencies.
	* except.c: Include libfuncs.h.
java:
	* Make-lang.in (java/decl.o): Update dependencies.
	* decl.c: Include libfuncs.h, don't include toplev.h.

From-SVN: r44858
 2001-08-13 15:56:51 +00:00
Richard Henderson
dddba20582 rtl.h (REG_EH_RETHROW): Remove. 
* rtl.h (REG_EH_RETHROW): Remove.
        * rtl.c (reg_note_name): Update.
        * combine.c (distribute_notes): Don't check for it.

From-SVN: r44809
 2001-08-11 13:45:09 -07:00
Richard Henderson
ab61c93f12 * combine.c (distribute_notes): Place REG_SETJMP. 
From-SVN: r44806
 2001-08-11 13:16:12 -07:00
Graham Stott
e61465ed1f combine.c (combine_simplify_rtx): Update comment and remove erroneous test. 
* combine.c (combine_simplify_rtx): Update comment and
	remove erroneous test.

From-SVN: r44703
 2001-08-08 06:15:20 +00:00
Lars Brinkhoff
8aeea6e67d combine.c, [...]: consistently use "VAX", "VAXen", and "MicroVAX" in comments and documentation. 
* combine.c, config.gcc, cse.c, defaults.h, real.c, reload.c,
	simplify-rtx.c, config/alpha/alpha.h, config/avr/avr.h,
	config/convex/convex.h, config/d30v/d30v.c,
	config/d30v/d30v.h, config/dsp16xx/dsp16xx.h,
	config/elxsi/elxsi.h, config/fr30/fr30.h, config/m88k/m88k.c,
	config/mips/mips.h, config/mn10200/mn10200.h,
	config/mn10300/mn10300.h, config/pdp11/pdp11.md,
	config/v850/v850.h, config/vax/openbsd.h,
	config/vax/openbsd1.h, config/vax/ultrix.h,
	config/vax/vax-protos.h, config/vax/vax.c, config/vax/vax.h,
	config/vax/vax.md, config/vax/vaxv.h, config/vax/xm-vms.h,
	cp/decl2.c, doc/contrib.texi, doc/cpp.texi, doc/gcc.texi,
	doc/install.texi, doc/invoke.texi, doc/md.texi, doc/rtl.texi,
	doc/tm.texi: consistently use "VAX", "VAXen", and "MicroVAX"
        in comments and documentation.

From-SVN: r44589
 2001-08-03 01:19:20 +00:00
Kazu Hirata
ec5c56db8b alias.c: Fix comment formatting. 
* alias.c: Fix comment formatting.
	* bitmap.c: Likewise.
	* builtins.c: Likewise.
	* calls.c: Likewise.
	* c-common.c: Likewise.
	* c-decl.c: Likewise.
	* c-dump.c: Likewise.
	* c-lex.c: Likewise.
	* collect2.c: Likewise.
	* combine.c: Likewise.
	* conflict.c: Likewise.
	* cppfiles.c: Likewise.
	* cppinit.c: Likewise.
	* cpplex.c: Likewise.
	* cpplib.c: Likewise.
	* cppmacro.c: Likewise.
	* cppspec.c: Likewise.
	* c-pragma.c: Likewise.
	* crtstuff.c: Likewise.
	* cse.c: Likewise.
	* cselib.c: Likewise.
	* c-semantics.c: Likewise.
	* c-typeck.c: Likewise.

From-SVN: r44547
 2001-08-01 17:57:27 +00:00
Jan Hubicka
592a6d1d96 * combine.c (try_combine): Avoid barrier after noop jumps 
From-SVN: r44470
 2001-07-30 10:54:10 +00:00
Jan Hubicka
b5832b4372 Suggested by Richard Henderson and Richard Kenner: 
* combine.c (recog_for_combine): Use the fake recog
	only if instruction does not match.
	* rtl.h (NOOP_MOVE_INSN_CODE): New.
	* rtlanal.c (noop_move_p): Always return 1 for NOOP_MOVE_INSN_CODE.

	* combine.c (try_combine): Discover noop jump as direct jump.

From-SVN: r44464
 2001-07-29 19:44:42 +00:00
Richard Henderson
e7139885a9 combine.c (distribute_notes): Move set of need_refresh for noop_move_p down to catch all cases. 
* combine.c (distribute_notes): Move set of need_refresh
        for noop_move_p down to catch all cases.

From-SVN: r44317
 2001-07-24 14:39:19 -07:00
Jan Hubicka
0005550b58 basic-block.h (find_sub_basic_block): Declare. 
* basic-block.h (find_sub_basic_block): Declare.
	* flow.c (make_edges): New arguments MIN and MAX;
	(find_sub_basic_blocks): Revamp to use make_edges
	and purge_dead_edges.
	(find_basic_blocks): Update call of find_sub_basic_block.

	* recog.c (split_all_insns): Always expect CFG to be consistent;
	call find_sub_basic_blocks in case something has changed.
	* toplev.c (rest_of_compilation): Always call split_all_insns once CFG
	has been built.

	* basic-block.h (delete_noop_moves): Declare.
	* combine.c (combine_instructions): Call it.
	(recog_for_combine): Tolerate noop moves
	(distribute_notes): Force refresh when register dies at noop move.
	* flow.c (delete_noop_moves): Use BB structure; delete JUMP insns
	too.
	(life_analysis): Update delete_noop_moves call.
	(set_noop_p): Move too ...
	* rtlanal.c (noop_move_p): ... here.
	* rtl.h (noop_move_p): Declare.

	* basic-block.h (purge_all_dead_edges, purge_dead_edges): New functions.
	* toplev.c (rest_of_compilation): Conditionally call purge_all_dead_edges
	after combine.
	* gcse.c (cprop_cc0_jump, cprop_insn): New argument "basic_block".
	(cprop_jump): Likewise; call purge_dead_edges if substitution suceeded.

From-SVN: r44267
 2001-07-23 14:08:12 +00:00
Diego Novillo
9def18da54 combine.c (combine_simplify_rtx): Generate a new shift operation when simplifying the first operand of a (neg... 
* combine.c (combine_simplify_rtx): Generate a new shift operation
	when simplifying the first operand of a (neg (ashift)) expression.

From-SVN: r44202
 2001-07-20 13:47:03 -04:00
Steve Ellcey
6dd12198d0 * tm.texi (POINTERS_EXTEND_UNSIGNED) Modify definition. 
* optabs.c (can_extend_p) Check HAVE_ptr_extend for a specialized
	pointer extension instruction.
	* combine.c (nonzero_bits,num_sign_bit_copies) Likewise.
	* simplify-rtx.c (simplify_unary_operation) Likewise.
	* explow.c (convert_memory_address) Check value of
	POINTERS_EXTEND_UNSIGNED to avoid some conversions when
	less than zero.
	* config/ia64/t-hpux (LIBGCC, INSTALL_LIBGCC, MULTILIB_OPTIONS,
	MULTILIB_DIRNAMES, MULTILIB_MATCHES) Add multilib support.
	* config/ia64/hpux.h (CPP_SPEC, ASM_SPEC, SUBTARGET_SWITCHES)
	Add Multilib Support.
	(POINTERS_EXTEND_UNSIGNED)  Define for ILP32 support.
	* config/ia64/ia64.h (MASK_ILP32, TARGET_ILP32, SUBTARGET_SWITCHES)
	Add Multilib Support.
	(POINTER_SIZE, LONG_TYPE_SIZE, MAX_LONG_TYPE_SIZE) Modify for ILP32
	support.
	* config/ia64/ia64.c (rtx_needs_barrier) Add support for addp4.
	* config/ia64/ia64.md (ptr_extend) New instruction to "swizzle"
	a 32 bit HP-UX pointer into a 64 bit HP-UX pointer.

From-SVN: r44166
 2001-07-19 16:26:51 -07:00
Toon Moene
493efd37cd combine.c (combine_simplify_rtx): DIV can be treated associatively for floats if... 
2001-07-18  Toon Moene  <toon@moene.indiv.nluug.nl>

	* combine.c (combine_simplify_rtx): DIV can be treated
	associatively for floats if unsafe math optimisations are enabled.

From-SVN: r44097
 2001-07-18 05:26:38 +00:00
Jan Hubicka
4ba5f92543 combine.c (combine_simplify_rtx): Attempt to simplify a*(b/c) as (a*b)/c for floats in unsafe_math mode. 
* combine.c (combine_simplify_rtx): Attempt to simplify
	a*(b/c) as (a*b)/c for floats in unsafe_math mode.

	* simplify-rtx.c (avoid_constatn_pool_reference): New static function.
	(simplify_binary_operation, simplify_unary_operation,
	 simplify_relational_operation): Use it.

	* combine.c (combine_simplify_rtx): Don't do associative law
	on divisions; allow associative law on floats.

From-SVN: r44073
 2001-07-17 15:11:56 +00:00
Andreas Jaeger
23190837c6 gcov.c (output_data): Use HOST_WIDEST_INT_PRINT_DEC to output variables of type HOST_WIDEST_INT. 
* gcov.c (output_data): Use HOST_WIDEST_INT_PRINT_DEC to output
	variables of type HOST_WIDEST_INT.

	* libgcc2.c (__bb_exit_func): Handle gcov_type as long long.
	(__bb_exit_func): Correct type of count_max to avoid overflow.
	(num_digits): Handle long long argument.

	* combine.c (gen_lowpart_for_combine): Remove unused variable.

From-SVN: r44033
 2001-07-16 11:16:04 +02:00
David Edelsohn
1568d79b84 * combine.c (try_combine): Ensure const_int pow2 is positive. 
From-SVN: r43983
 2001-07-13 11:05:51 -04:00
Jan van Male
ae0ed63adc regmove.c (replace_in_call_usage): Fix warnings. 
2001-07-10  Jan van Male  <jan.vanmale@fenk.wau.nl>
	* regmove.c (replace_in_call_usage): Fix warnings.
	* sched-deps.c (add_dependence): Fix warnings.
	* simplify-rtx.c (simplify_subreg): Likewise.
	Return NULL_RTX instead of NULL.

	* reg-stack.c (emit_swap_insn): Eliminate warnings.
	(subst_asm_stack_regs): Likewise.

	* combine.c (num_sign_bit_copies): Cast bitwidth to int to avoid
	warnings.

	* dwarf2out.c (output_call_frame_info): Declare i as int.
	(build_abbrev_table): Declare n_alloc as int.
	(dwarf2out_finish): Initialize die.
	* except.c: Declare sjlj_funcdef_number as unsigned.
	(connect_post_landing_pads): Declare j as unsigned.
	(convert_to_eh_region_ranges): Initialize call_site.
	(output_function_exception_table): Initialize tt_format_size.
	* expr.c (move_by_pieces_1): Initialize to1.
	(store_constructor): Initialize minelt and maxelt.
	* flow.c (mark_regs_live_at_end): Declare i as unsigned.
	* function.c (instantiate_decls): Avoid signed/unsigned warning.

	* c-decl.c (combine_parm_decls): Unused, remove.
	* c-tree.h: Remove prototype for combine_parm_decls.

	* reload.c (push_reload): Fix warning.
	(regno_clobbered_p): Likewise.
	* reload1.c (replace_pseudos_in_call_usage): Likewise.
	(reload_combine): Likewise.

	* bitmap.c: Rename bitmap_zero to bitmap_zero_bits to fix warnings.
	* bitmap.h: Rename bitmap_zero to bitmap_zero_bits to fix
	warnings.
	* bitmap.c (bitmap_operation): Change user.
	* bitmap.h (EXECUTE_IF_AND_COMPL_IN_BITMAP): Likewise.
For cp/:
2001-07-10  Jan van Male  <jan.vanmale@fenk.wau.nl>

	* call.c (build_op_delete_call): Initialize fn.
	(convert_like_real): Delete conditional.
	(joust): Initialize *w and *l.
	* class.c: Add prototype for binfo_ctor_vtable.
	(get_primary_binfo): Initialize result.
	* init.c (build_java_class_ref): Initialize name.

	* typeck.c (unary_complex_lvalue): Do not duplicate the
	argument to modify, pre-, or post-increment when used as an
	lvalue and when the argument has side-effects.

For ch/:
2001-07-10  Jan van Male  <jan.vanmale@fenk.wau.nl>

	* ch-tree.h: Remove prototype for combine_parm_decls, unused
	function.

From-SVN: r43893
 2001-07-10 12:38:10 +02:00
Richard Kenner
f1ec5147f5 [multiple changes] 
Mon Jul  9 06:41:07 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* emit-rtl.c (adjust_address_nv, replace_equiv_address_nv): New fcns.
	(operand_subword): Use them.
	(change_address_1): Renamed from change_address; new arg VALIDATE.
	* expr.h: Reflect above changes; change_address now macro.
	* alias.c (canon_rtx): Use replace_equiv_address_nv instead of
	making MEM.
	* cselib.c (add_mem_for_addr): Likewise.
	* expr.c (protect_from_queue, emit_move_insn_1): Likewise.
	* regmove.c (try_apply_stack_adjustment): Likewise.
	* reload.c (push_reload, make_memloc): Likewise.
	* reload1.c (eliminate_regs): Likewise.
	* simplify-rtx.c (simplify_replace_rtx): Likewise.
	* caller-save.c (setup_save_areas): Use adjust_address_nv instead of
	adjust_addess.
	* combine.c (make_extraction, simplify_shift_const): Likewise.
	(gen_lowpart_for_combine): Likewise.
	* cse.c (gen_lowpart_if_possible): Likewise.
	* function.c (fixup_var_refs_1, purge_addressof_1): Likewise.
	* expr.c (expand_expr, case COMPONENT_REF): Likewise.
	* optabs.c (gen_move_insn): Likewise.
	* reload1.c (alter_reg): Likewise.
	* simplify-rtx.c (simplify_subreg): Likewise.
	* stmt.c (expand_anon_union_decl): Likewise.
	* recog.c (validate_replace_rtx_1): Likewise.
	(expr.h): Include.
	* Makefile.in (recog.o): Add $(EXPR_H).
	* explow.c (stabilize): Call replace_equiv_address.
	* expr.c (move_by_pieces_1, store_by_pieces_2): Likewise.
	* final.c (alter_subreg): OFFSET is HOST_WIDE_INT.

2001-07-09  Bo Thorsen  <bo@suse.co.uk>

	* config/i386/unix.h (ASM_OUTPUT_MI_THUNK): Fix x86-64 vtable support.

2001-07-09  Neil Booth  <neil@daikokuya.demon.co.uk>

	* final.c (output_addr_const): Use target opening and
	closing parentheses.
	* target-def.h: Define TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN
	defaults, add to TARGET_ASM_OUT.
	* target.h (struct gcc_target): Add open_paren and close_paren.
	* doc/md.texi: Update.
	* doc/tm.texi: Document TARGET_ASM_FUNCTION_END_PROLOGUE,
	TARGET_ASM_FUNCTION_BEGIN_EPILOGUE, TARGET_ASM_OPEN_PAREN and
	TARGET_ASM_CLOSE_PAREN.
	* config/i386/i386.c (TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN):
	Override.
	* config/pdp11/pdp11.c (TARGET_ASM_OPEN_PAREN, TARGET_ASM_CLOSE_PAREN):
	Override.
	* config/1750a/1750a.h (ASM_OPEN_PAREN, ASM_CLOSE_PAREN): Remove.
	* config/a29k/a29k.h: Similarly.
	* config/alpha/alpha.h: Similarly.
	* config/arc/arc.h: Similarly.
	* config/arm/aof.h: Similarly.
	* config/arm/aout.h: Similarly.
	* config/avr/avr.h: Similarly.
	* config/c4x/c4x.h: Similarly.
	* config/clipper/clipper.h: Similarly.
	* config/convex/convex.h: Similarly.
	* config/d30v/d30v.h: Similarly.
	* config/dsp16xx/dsp16xx.h: Similarly.
	* config/elxsi/elxsi.h: Similarly.
	* config/fr30/fr30.h: Similarly.
	* config/h8300/h8300.h: Similarly.
	* config/i370/i370.h: Similarly.
	* config/i386/i386.h: Similarly.
	* config/i860/i860.h: Similarly.
	* config/i960/i960.h: Similarly.
	* config/ia64/ia64.h: Similarly.
	* config/m32r/m32r.h: Similarly.
	* config/m68hc11/m68hc11.h: Similarly.
	* config/m68k/m68k.h: Similarly.
	* config/m88k/m88k.h: Similarly.
	* config/mcore/mcore.h: Similarly.
	* config/mips/mips.h: Similarly.
	* config/mn10200/mn10200.h: Similarly.
	* config/mn10300/mn10300.h: Similarly.
	* config/ns32k/ns32k.h: Similarly.
	* config/pa/pa.h: Similarly.
	* config/pdp11/pdp11.h: Similarly.
	* config/pj/pj.h: Similarly.
	* config/romp/romp.h: Similarly.
	* config/rs6000/rs6000.h: Similarly.
	* config/sh/sh.h: Similarly.
	* config/sparc/sparc.h: Similarly.
	* config/v850/v850.h: Similarly.
	* config/vax/vax.h: Similarly.
	* config/we32k/we32k.h: Similarly.

2001-07-09  Joseph S. Myers  <jsm28@cam.ac.uk>

	* doc/c-tree.texi: Document representation of attributes.

2001-07-08  Joseph S. Myers  <jsm28@cam.ac.uk>

	* doc/tm.texi: Update some places for the rename of target to
	targetm.  Fix typo.

2001-07-08  Joseph S. Myers  <jsm28@cam.ac.uk>

	* target.h (struct gcc_target): Add insert_attributes.
	* target-def.h (TARGET_INSERT_ATTRIBUTES): Define.
	(TARGET_INITIALIZER): Update.
	* tree.c, tree.h (default_insert_attributes): New function.
	Update comments on other default functions to refer to targetm,
	not target.
	* doc/tm.texi (INSERT_ATTRIBUTES): Update to document
	TARGET_INSERT_ATTRIBUTES.
	(SET_DEFAULT_DECL_ATTRIBUTES): Remove.
	* c-common.c (decl_attributes): Use targetm.insert_attributes.
	Don't use PRAGMA_INSERT_ATTRIBUTES.
	* Makefile.in (c-common.o): Depend on $(TARGET_H).
	* c-decl.c (start_decl, start_function): Don't call
	SET_DEFAULT_DECL_ATTRIBUTES.
	* config/c4x/c4x.h (SET_DEFAULT_DECL_ATTRIBUTES): Don't define.
	* config/c4x/c4x-protos.h (c4x_set_default_attributes): Don't
	declare.
	* config/c4x/c4x.c (TARGET_INSERT_ATTRIBUTES): Define.
	(c4x_check_attribute): Avoid modifying attribute list itself.
	(c4x_set_default_attributes): Rename to c4x_insert_attributes.
	Make static.
	* config/sh/sh.h (PRAGMA_INSERT_ATTRIBUTES): Don't define.
	* config/sh/sh-protos.h (sh_pragma_insert_attributes): Don't
	declare.
	* config/sh/sh.c (TARGET_INSERT_ATTRIBUTES): Define.
	(sh_pragma_insert_attributes): Rename to sh_insert_attributes.
	Make static.
	* config/v850/v850.h (SET_DEFAULT_DECL_ATTRIBUTES): Don't define.
	* config/v850/v850-protos.h (v850_set_default_decl_attr): Don't
	declare.
	* config/v850/v850.c (TARGET_INSERT_ATTRIBUTES): Define.
	(v850_set_default_decl_attr): Rename to v850_insert_attributes.
	Adjust parameters.  Make static.

2001-07-08  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (decl_attributes): Only take a single attributes
	parameter.
	* c-common.h (decl_attributes): Update prototype.
	* c-decl.c (start_decl, start_function): Only take a single
	attributes parameter.  Update calls to decl_attributes.
	(finish_struct, finish_enum): Update calls to decl_attributes.
	(push_parm_decl): Expect unified list of attributes.  Update call
	to decl_attributes.
	* c-parse.in (fndef, initdcl, notype_initdcl, nested_function,
	notype_nested_function, component_declarator,
	component_notype_declarator, label): Update calls to
	decl_attributes.
	(absdcl_maybe_attribute, parm, firstparm, myparm): Unify attribute
	lists that are passed to push_parm_decl.
	* c-tree.h (start_function, start_decl): Update prototypes.
	* config/sh/sh-protos.h, config/sh/sh.c
	(sh_pragma_insert_attributes): Only take a single attributes
	parameter.
	* config/sh/sh.h (PRAGMA_INSERT_ATTRIBUTES): Likewise.
	* doc/tm.texi (INSERT_ATTRIBUTES): Update.
	* objc/objc-act.c (define_decl, generate_objc_symtab_decl,
	build_module_descriptor, generate_static_references,
	generate_strings, build_selector_translation_table,
	generate_descriptor_table, generate_protocols,
	generate_ivars_list, generate_dispatch_table,
	generate_protocol_list, generate_category,
	generate_shared_structures, really_start_method, add_objc_decls,
	generate_classref_translation_entry): Update calls to start_decl
	and start_function.
	(build_tmp_function_decl, start_method_def): Unify attribute lists
	that are passed to push_parm_decl.

2001-07-08  Neil Booth  <neil@daikokuya.demon.co.uk>

	* final.c (no_asm_to_stream): New.
	(final_scan_insn): Use target structures for prologue ends
	and epilogue starts.
	* output.h (no_asm_to_stream): New.
	* target-def.h (TARGET_ASM_FUNCTION_END_PROLOGUE,
	TARGET_ASM_FUNCTION_BEGIN_EPILOGUE): New.
	(TARGET_ASM_OUT): Update.
	* target.h (struct gcc_target): New members function_end_prologue
	and function_begin_epilogue.
	* config/1750/1750.h (ASM_OUTPUT_FUNNAM): Delete as unused.
	* config/alpha/alpha-protos.h (output_end_prologue): Delete.
	* config/alpha/alpha.c (output_end_prologue): Rename to
	alpha_output_function_end_prologue.  Use in target struct
	and make static.
	* config/alpha/alpha.h (FUNCTION_END_PROLOGUE): Delete.
	* config/ia64/ia64-protos.h (ia64_output_end_prologue): Delete.
	* config/ia64/ia64.c (ia64_output_end_prologue): Rename to
	ia64_output_function_end_prologue.  Use in target struct
	and make static.
	(ia64_function_prologue, ia64_funciton_epilogue): Rename
	mistyped prototypes.
	* config/ia64/ia64.h (FUNCTION_END_PROLOGUE): Delete.
	* config/m88k/m88k-protos.h (m88k_end_prologue, m88k_begin_epilogue):
	Delete.
	* config/m88k/m88k.c (m88k_end_prologue, m88k_begin_epilogue): Rename
	an use in target struct, make static.
	* config/ia64/ia64.h (FUNCTION_END_PROLOGUE, FUNCTION_BEGIN_EPILOGUE):
	Delete.

2001-07-08  Richard Henderson  <rth@redhat.com>

	* stmt.c (emit_case_nodes): Convert modes properly in low+high test.

2001-07-08  Richard Henderson  <rth@redhat.com>

	* config/i386/i386.md: Remove constraints strings from define_split
	and define_peephole2 patterns.
	(eh_return_si, eh_return_di): Split eh_return_1 for modes.
	(eh_return): Use them.

2001-07-08  Richard Henderson  <rth@redhat.com>

	* doc/tm.texi (Exception Handling): New subnode of Stack and Calling.
	Document MD_FALLBACK_FRAME_STATE_FOR.

2001-07-07  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* config/m68hc11/m68hc11.c (m68hc11_initial_elimination_offset):
	Take into account m68hc11_sp_correction for FRAME_POINTER_REGNUM
	elimination.
	* config/m68hc11/m68hc11.h (STARTING_FRAME_OFFSET): Use 0.

2001-07-07  Nick Clifton  <nickc@cambridge.redhat.com>

	* config/ia64/sysv4.h (ASM_OUTPUT_LABELREF): Append # to end
	of the label inside NAME as opposed to just the end of NAME.

2001-07-07  Neil Booth  <neil@daikokuya.demon.co.uk>

	* config/alpha/alpha-protos.h (vms_valid_decl_attribute_p): Delete.
	* config/alpha/alpha.c (alpha_init_machine_status,
	alpha_mark_machine_status, alpha_free_machine_status): Delete.
	(TARGET_VALID_DECL_ATTRIBUTE): Define for VMS.
	(vms_valid_decl_attribute_p): Make static, conditionally compile.
	* config/alpha/alpha.h (VALID_MACHINE_DECL_ATTRIBUTE): Delete.

2001-07-06  Stan Shebs  <shebs@apple.com>

	* target.h (targetm): Rename global from "target", so as not to
	conflict with local variables.
	* c-decl.c: Ditto.
	* c-typeck.c: Ditto.
	* final.c: Ditto.
	* tree.c: Ditto.
	* cp/decl.c: Ditto.
	* cp/decl2.c: Ditto.
	* cp/typeck.c: Ditto.
	* 1750a/1750a.c: Ditto.
	* a29k/a29k.c: Ditto.
	* arc/arc.c: Ditto.
	* arm/arm.c: Ditto.
	* avr/avr.c: Ditto.
	* clipper/clipper.c: Ditto.
	* convex/convex.c: Ditto.
	* d30v/d30v.c: Ditto.
	* dsp16xx/dsp16xx.c: Ditto.
	* elxsi/elxsi.c: Ditto.
	* fr30/fr30.c: Ditto.
	* h8300/h8300.c: Ditto.
	* i370/i370.c: Ditto.
	* i386/i386.c: Ditto.
	* i860/i860.c: Ditto.
	* i960/i960.c: Ditto.
	* ia64/ia64.c: Ditto.
	* m32r/m32r.c: Ditto.
	* m68hc11/m68hc11.c: Ditto.
	* m68k/m68k.c: Ditto.
	* m88k/m88k.c: Ditto.
	* mips/mips.c: Ditto.
	* ns32k/ns32k.c: Ditto.
	* pa/pa.c: Ditto.
	* pdp11/pdp11.c: Ditto.
	* romp/romp.c: Ditto.
	* rs6000/rs6000.c: Ditto.
	* sh/sh.c: Ditto.
	* sparc/sparc.c: Ditto.
	* vax/vax.c: Ditto.
	* we32k/we32k.c: Ditto.
	* doc/tm.texi: Update the manual to match.

2001-07-06  Richard Henderson  <rth@redhat.com>

	* except.h (MUST_USE_SJLJ_EXCEPTIONS): Examine the value of
	DWARF2_UNWIND_INFO not just whether it is defined.

2001-07-06  Diego Novillo  <dnovillo@redhat.com>

	* combine.c (combine_simplify_rtx): Also recompute 'mode' if the
	call to simplify_binary_operation returns a new pattern.

2001-07-06  Roman Lechtchinsky  <rl@cs.tu-berlin.de>

	* glimits.h (__SHRT_MAX__): New.
	(SHRT_MIN, USHRT_MAX): Define in terms of SHRT_MAX.
	(SHRT_MAX): Define in terms of __SHRT_MAX__.

2001-07-06  Jan van Male  <jan.vanmale@fenk.wau.nl>

	* alias.c (base_alias_check): Cast GET_MODE_UNIT_SIZE to int to
	avoid warnings.

2001-07-06  Richard Henderson  <rth@redhat.com>

	* bitmap.c (bitmap_release_memory): Move adjacent to the
	allocation functions.
	(bitmap_first_set_bit, bitmap_last_set_bit): Streamline knowing
	the implementation.  Binary search for the set bit.
	(bitmap_union_of_diff): Allocate the temporary on the stack
	instead of using xmalloc.

2001-07-06  Richard Henderson  <rth@redhat.com>

	* genrecog.c (validate_pattern): Warn for constraints in
	define_{expand,split,peephole2}.  Remove strict_low_part
	before looking up match_dup.

2001-07-06  DJ Delorie  <dj@redhat.com>

	* doc/gcc.texi (Makefile): Rename to be a more general purpose
	chapter about various build hints and history.  Add section
	talking about the various types of native and cross builds.

2001-07-06  Neil Booth  <neil@daikokuya.demon.co.uk>

	* Makefile.in (final.o): Depend on target.h.
	* final.c: Include target.h.
	(default_function_pro_epilogue): New.
	(final_start_function): Use target structure for function prologues.
	(final_end_function): Use target structure for function epilogues.
	* fold-const.c (real_hex_to_f): Constify s and p.
	* output.h (default_function_pro_epilogue): New.
	* real.h (real_hex_to_f): Update prototype.
	* target-def.h (TARGET_ASM_FUNCTION_PROLOGUE,
	TARGET_ASM_FUNCTION_EPILOGUE, TARGET_ASM_OUT): New.
	(TARGET_INITIALIZER): Update.
	* target.h (gcc_target): Add struct asm_out.
	* doc/tm.texi: Update.

config:
	Update each arch to use TARGET_ASM_FUNCTION_PROLOGUE and
	TARGET_ASM_FUNCTION_EPILOGUE.  Move macro code to functions
	in cpu/cpu.c, or rename old functions consistently.  Take
	a HOST_WIDE INT not an int as the SIZE parameter.  Remove now
	redundant macros and prototypes.  Make new functions static.

	* 1750a/1750a.c: Similarly.
	* 1750a/1750a.h: Similarly.
	* a29k/a29k-protos.h: Similarly.
	* a29k/a29k.c: Similarly.
	* a29k/a29k.h: Similarly.
	* arc/arc-protos.h: Similarly.
	* arc/arc.c: Similarly.
	* arc/arc.h: Similarly.
	* arm/arm-protos.h: Similarly.
	* arm/arm.c: Similarly.
	* arm/arm.h: Similarly.
	* avr/avr-protos.h: Similarly.
	* avr/avr.c: Similarly.
	* avr/avr.h: Similarly.
	* clipper/clipper-protos.h: Similarly.
	* clipper/clipper.c: Similarly.
	* clipper/clipper.h: Similarly.
	* convex/convex.c: Similarly.
	* convex/convex.h: Similarly.
	* d30v/d30v-protos.h: Similarly.
	* d30v/d30v.c: Similarly.
	* d30v/d30v.h: Similarly.
	* d30v/d30v.md: Similarly.
	* dsp16xx/dsp16xx-protos.h: Similarly.
	* dsp16xx/dsp16xx.c: Similarly.
	* dsp16xx/dsp16xx.h: Similarly.
	* elxsi/elxsi.c: Similarly.
	* elxsi/elxsi.h: Similarly.
	* fr30/fr30.c: Similarly.
	* fr30/fr30.md: Similarly.
	* h8300/h8300-protos.h: Similarly.
	* h8300/h8300.c: Similarly.
	* h8300/h8300.h: Similarly.
	* i370/i370-protos.h: Similarly.
	* i370/i370.c: Similarly.
	* i370/i370.h: Similarly.
	* i386/i386.c: Similarly.
	* i386/osf1elf.h: Similarly.
	* i386/osfrose.h: Similarly.
	* i860/i860-protos.h: Similarly.
	* i860/i860.c: Similarly.
	* i860/i860.h: Similarly.
	* i960/i960-protos.h: Similarly.
	* i960/i960.c: Similarly.
	* i960/i960.h: Similarly.
	* ia64/ia64-protos.h: Similarly.
	* ia64/ia64.c: Similarly.
	* ia64/ia64.h: Similarly.
	* m32r/m32r-protos.h: Similarly.
	* m32r/m32r.c: Similarly.
	* m32r/m32r.h: Similarly.
	* m68hc11/m68hc11-protos.h: Similarly.
	* m68hc11/m68hc11.c: Similarly.
	* m68hc11/m68hc11.h: Similarly.
	* m68k/crds.h: Similarly.
	* m68k/dpx2.h: Similarly.
	* m68k/m68k-protos.h: Similarly.
	* m68k/m68k.c: Similarly.
	* m68k/m68k.h: Similarly.
	* m68k/news.h: Similarly.
	* m88k/m88k-protos.h: Similarly.
	* m88k/m88k.c: Similarly.
	* m88k/m88k.h: Similarly.
	* mips/mips-protos.h: Similarly.
	* mips/mips.c: Similarly.
	* mips/mips.h: Similarly.
	* ns32k/merlin.h: Similarly.
	* ns32k/ns32k.c: Similarly.
	* ns32k/ns32k.h: Similarly.
	* ns32k/tek6000.h: Similarly.
	* pa/pa-protos.h: Similarly.
	* pa/pa.c: Similarly.
	* pa/pa.h: Similarly.
	* pdp11/2bsd.h: Similarly.
	* pdp11/pdp11-protos.h: Similarly.
	* pdp11/pdp11.c: Similarly.
	* pdp11/pdp11.h: Similarly.
	* romp/romp-protos.h: Similarly.
	* romp/romp.c: Similarly.
	* romp/romp.h: Similarly.
	* rs6000/rs6000-protos.h: Similarly.
	* rs6000/rs6000.c: Similarly.
	* rs6000/rs6000.h: Similarly.
	* rs6000/sysv4.h: Similarly.
	* sh/sh-protos.h: Similarly.
	* sh/sh.c: Similarly.
	* sh/sh.h: Similarly.
	* sparc/sparc-protos.h: Similarly.
	* sparc/sparc.c: Similarly.
	* sparc/sparc.h: Similarly.
	* vax/vax.c: Similarly.
	* vax/vax.h: Similarly.
	* vax/vms.h: Similarly.
	* we32k/we32k.c: Similarly.
	* we32k/we32k.h: Similarly.

Fri Jul  6 11:47:59 2001  Jeffrey A Law  (law@cygnus.com)

	* basic-block.h (first_insn_after_basic_block_note): Declare.
	* flow.c (first_insn_after_basic_block_note): Define.  Moved
	from...
	* ssa.c (first_insn_after_basic_block_note): Remove.
	* ssa-dce.c (find_inherently_necessary): Consider BARRIERs
	necessary.
	(ssa_eliminate_dead_code): Properly update the CFG and PHI
	nodes when we find a dead conditional branch.  Insert BARRIERs
	after any blocks with no successors, but which do not have
	any BARRIERs.

2001-07-06  Zack Weinberg  <zackw@stanford.edu>

	* varray.c (varray_check_failed): Use internal_error.

2001-07-05  Andrew Haley  <aph@redhat.com>

	* Makefile.in (LIB2_DIVMOD_FUNCS): New.
	(LIB2FUNCS): Move divmod functions to LIB2_DIVMOD_FUNCS.
	* mklibgcc.in: Compile LIB2_DIVMOD_FUNCS.

2001-07-02  Jason Merrill  <jason_merrill@redhat.com>

	* dwarf2out.c (mem_loc_descriptor): Only look through a constant pool
	reference if the target constant is also a SYMBOL_REF.

2001-07-05  Eric Christopher  <echristo@redhat.com>

	* config/mips/mips.h (MASK_MIPS3900): Remove.
	(MASK_MIPS16,MASK_NO_CHECK_ZERO_DIV,MASK_CHECK_RANGE_DIV,
	MASK_UNINIT_CONST_IN_RODATA): Change for 3900 mask removal.
	(TARGET_MIPS3900): Change to use mips_arch.
	(TARGET_MIPS4000): New.
	(TARGET_MIPS4100): New.
	(TARGET_MIPS4300): New.
	(TARGET_SWITCHES): Change 3900 and 4650 options to NULL.
	(SUBTARGET_TARGET_OPTIONS): Add -march. Change help text
	for -mipsX.
	(GENERATE_BRANCHLIKELY): Move TARGET_MIPS3900.
	(ISA_HAS_BRANCHLIKELY): To here.
	(CC1_CPU_SPEC):	 New.
	(CC1_SPEC): Use here.  Remove 4650 and 3900 options.
	(mips_arch_string): Declare.
	(mips_arch): Declare.
	(TARGET_OPTIONS): Add -march and -mtune.

	* config/mips/mips.c (mips_arch_string): New.
	(mips_arch): New.
	(override_options): Handle -march for codegen and -mtune
	for scheduling. Use mips_arch. Move tx39 target default here.
	(mips_parse_cpu): Move error message to override_options.

	* config/mips/r3900.h (TARGET_DEFAULT): Remove.

	* config/mips/mips.md: Use TARGET_MIPS4000 and TARGET_MIPS4300.

	* doc/invoke.texi (Option Summary): Add -march and -mtune entries.
	(MIPS Options): Ditto.	Change mcpu entry to historical text.

2001-07-05  H.J. Lu  (hjl@gnu.org)

        * config/mips/mips.c (mips_parse_cpu): New function to parse
        -march=*/-mcpu=*.

2001-07-05  Jim Wilson  <wilson@redhat.com>

	* config/ia64/lib1funcs.asm: Revert 2001-07-02 change.
	* config/ia64/t-ia64: Likewise.
	(LIB1ASMFUNCS): Update comment.

2001-07-05  David Edelsohn  <edelsohn@gnu.org>

	* doc/install.texi (Install GCC: Binaries): Fix typo.

2001-07-04  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* config/m68hc11/m68hc11.md ("*ashlsi3"): Operand 1 can be a memory
	reference using the stack pointer, adjust it since we push Y
	temporarily.
	("*ashrsi3"): Likewise.
	("*lshrsi3"): Likewise.

2001-07-05  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* config/m68hc11/m68hc11.h (RETURN_ADDR_RTX): Fix return address
	when -fomit-frame-pointer is used.

2001-07-05  Jeffrey Oldham  <oldham@codesourcery.com>

	* flow.c: Reverse Jan Hubicka's patch of 02July2001.
	(try_redirect_by_replacing_jump): Reverse updating properly the
	count and frequency information.  Reverse removing cc0 setter.
	(forwarder_block_p): Reverse fixing for fallthru blocks.

2001-07-05  DJ Delorie  <dj@redhat.com>

	* gcc.c (TARGET_OPTION_TRANSLATE_TABLE): New.
	(translate_options): If the above is defined, use it to map
	given options to new options.
	* doc/tm.texi: Document it.

2001-07-05  Brad Lucier <lucier@math.purdue.edu>
	    Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* doc/invoke.texi (Optimize Options): Document that -fgcse may
	cause programs using computed gotos to run more slowly.

2001-07-05  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	* doc/install.texi (Specific): Markup, spelling and typo fixes.
	Fixed sorting.
	Consistently require binutils 2.11.2, not prereleases.
	(Specific, decstation-*): Canonicalize as mips-dec-*.
	(Specific, i?86-*-sco3.2v5*): Remove make bootstrap requirement,
	always necessary.
	(Specific, m68k-altos): Removed reference to README.altos, deleted.
	(Specific, mips-*): Reword MIPS C compiler requirements.
	(Specific, powerpc*-*-*): New, mention --with-cpu once.
	(Specific, sunv5): Removed, obsolete.

2001-07-05  Nathan Sidwell  <nathan@codesourcery.com>

	* dwarf2out.c (output_loc_list): Use an all ones mask for
	.text asm output and don't rely on long long
	literals. Reformat some long lines.

2001-07-05  Andreas Jaeger  <aj@suse.de>

	* doc/gcc.texi (GNU/Linux): Remove accidental re-add of GPL
	section.

2001-07-04  Daniel Berlin  <dan@cgsoftware.com>

	* dwarf2out.c (dwarf2out_define): Update comment.
	(dwarf2out_undef): Ditto.
	(dwarf2out_start_source_file): Ditto.
	(dwarf2out_end_source_file): Ditto.
	(dwarf2out_finish): Output DW_MACINFO_end_file for primary file,
	since we never call the start/end debug hook for the primary file.

2001-07-04  Kazu Hirata  <kazu@hxi.com>

	* config/h8300/h8300.c (get_shift_alg): Remove an extra operand
	from shll.

2001-07-04  Nathan Sidwell  <nathan@codesourcery.com>

	* cppinit.c (remove_dup_dirs): Inform if a system include
        directory is being reordered.
	* doc/invoke.texi (Directory Options): GCC warns if you hide a
	system include.
	* doc/cpp.texi (Search Paths): Likewise.
	* doc/gcc.texi (Interoperation): Remove information about
	-I/usr/include.

2001-07-04  Nathan Sidwell  <nathan@codesourcery.com>

	* varray.h (VARRAY_TOP_GENERIC_PTR): Remove spurious parameter.
	(VARRAY_TOP_CHAR_PTR): Likewise.

2001-07-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* gcc.c (process_command): Don't assign elements of a const char*.

Wed Jul  4 13:40:02 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* emit-rtl.c (change_address): Don't abort if invalid address while
	reload is in progress.

2001-07-04  Daniel Berlin  <dan@cgsoftware.com>

	* c-lex.c (cb_file_change): Pass line number to
	debug_start_source_file.
	(cb_undefine): Pass correct line number to debug_undef.

	* toplev.c (debug_start_source_file): Add line number to
	parameters. Pass it along to dwarf2out_start_source_file.
	(decode_g_option): Stop resetting debug level back to normal when
	we change debug formats, unless the current level is
	none. (Before, -g3 -gdwarf-2 would use debug level 2, rather than
	3).

	* toplev.h (debug_start_source_file): Add line number to
	parameters.

	* dwarf2out.h (dwarf2out_start_source_file): Add line number to
	parameters.

	* dwarf2out.c (dwarf2out_start_source_file): Add line number to
	parameters.
	Output debug_macinfo data for starting file if requested.
	(dwarf2out_end_source_file): Output debug_macinfo data for ending
	file if requested.
	(dwarf2out_define): Output debug_macinfo data for defining a macro
	if requested.
	(dwarf2out_undef): Output debug_macinfo data for undefining a
	macro if requested.
	(DEBUG_MACINFO_SECTION): New. DWARF2 macro info section name.
	(DEBUG_MACINFO_SECTION_LABEL): New. DWARF2 macro info section label.
	(macinfo_section_label): New. DWARF2 macro info section label.
	(dwarf2out_init): If we want macro info, output the start label
	for the section.
	(dwarf2out_finish): If we want macro info, add a DW_AT_macro_info
	attribute to the compilation unit die pointing to the macro info.

2001-07-04  Daniel Berlin  <dan@cgsoftware.com>

	* dwarf2out.c (new_loc_list): Move to inside #ifdef
	DWARF2_DEBUGGING_INFO.
	(add_loc_descr_to_loc_list): Ditto.
	(output_loc_list): Ditto.
	Also, fix thinko in curr not being initialized.
	(gen_internal_sym): Ditto.

Wed Jul  4 13:40:02 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* emit-rtl.c (replace_equiv_address): New function.
	* expr.h (replace_equiv_address): New declaration.
	* explow.c (validize_mem): Call it instead of change_address and
	also call if -fforce-addr and address is constant.
	* expr.c: Replace more calls to change_address with adjust_address
	and/or replace_equiv_address or to validize_mem.
	* function.c, regmove.c, config/alpha/alpha.c: Likewise.
	* config/arm/arm.md, config/clipper/clipper.md: Likewise.
	* config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise.
	* config/i370/i370.md, config/i860/i860.md: Likewise.
	* config/i960/i960.md, config/mips/mips.c: Likewise.
	* config/mips/mips.md, config/pa/pa.md: Likewise.
	* config/pdp11/pdp11.md, config/rs6000/rs6000.c: Likewise.
	* config/rs6000/rs6000.md, config/sh/sh.md: Likewise.

2001-07-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* bitmap.c (bitmap_union_of_diff): Don't use BITMAP_ALLOCA.

	* bitmap.h (BITMAP_ALLOCA): Don't pass alloca as an argument to a
	function.

2001-07-04  Joseph S. Myers  <jsm28@cam.ac.uk>

	* doc/include: New directory.
	* doc/fdl.texi: Move to doc/include/fdl.texi.
	* doc/texinfo.tex: Move to doc/include/texinfo.tex.
	* doc/include/funding.texi, doc/include/gpl.texi: New files.
	* doc/gcc.texi: Use funding.texi and gpl.texi.
	* Makefile.in ($(docdir)/cpp.info, $(docdir)/gcc.info,
	$(docdir)/cppinternals.info, cpp.dvi. gcc.dvi. cppinternals.dvi):
	Update dependencies and use -I $(docdir)/include.

2001-07-04  Anthony Green  <green@redhat.com>

	* config/v850/t-v850 (v850-c.o): Add missing dependencies.

2001-07-04  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* doc/install.texi (sparc64-*-*): Remove garbage.

Wed Jul  4 09:07:44 2001  Jan van Male  <jan.vanmale@fenk.wau.nl>

	* i386.c (ix86_expand_builtin, case IX86_BUILTIN_SETPS):
	Fix typo in last change to use adjust_address.

2001-07-04  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* doc/install.texi (Specific): Update information for *-*-solaris*.

Tue Jul  3 22:33:15 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* explow.c (plus_constant_wide): Reinitialize Y for restart.

2001-07-03  Stan Shebs  <shebs@apple.com>

	* config/darwin.h (SECTION_FUNCTION): Remove WAS_TEXT argument, remove
	case for flag_no_mach_text_sections.
	(EXTRA_SECTION_FUNCTIONS): Remove arg from uses of SECTION_FUNCTION.
	* config/darwin.c (flag_no_mach_text_sections): Remove.
	* config/darwin-protos.h (darwin_init_pragma): Remove decl.

Tue Jul  3 15:35:52 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* explow.c (plus_constant_wide, case PLUS): Call find_constant_term
	and avoid checking for constant as first operand.
	* recog.c (find_constant_term_loc): No longer static.
	(adj_offettable_operand): Delete.
	* rtl.h (adj_offsettable_operand): Delete declaration.
	(find_constant_term): Add declaration.
	* caller-save.c: Replace calls to adj_offsettable_operand with calls
	to adjust_address.
	* config/arm/arm.c, config/c4x/c4x.c: Likewise.
	* config/clipper/clipper.md, config/h8300/h8300.c: Likewise.
	* config/i386/i386.c, config/i386/i386.md: Likewise.
	* config/i860/i860.c, config/i960/i960.c: Likewise.
	* config/i960/i960.md, config/m68hc11/m68hc11.c: Likewise.
	* config/m68k/m68k.c, config/m68k/m68k.md: Likewise.
	* config/m88k/m88k.md, config/mcore/mcore.c: Likewise.
	* config/mips/mips.c, config/mips/mips.md: Likewise.
	* config/mn10200/mn10200.c, config/mn10300/mn10300.c: Likewise.
	* config/ns32k/ns32k.c, config/ns32k/ns32k.md: Likewise.
	* config/pa/pa.c, config/pdp11/pdp11.c: Likewise.
	* config/pdp11/pdp11.md, config/sh/sh.c, config/v850/v850.c: Likewise.
	* config/vax/vax.md, config/ns32k/ns32k.c: Likewise.
	* config/ns32k/ns32k.md: Likewise.

2001-07-03  Zack Weinberg  <zackw@stanford.edu>

	* rtl.c (copy_rtx): Handle 'T' format letter.
	* gensupport.c (collect_insn_data): Likewise.
	* print-rtl.c (print_rtx): Print 'T' slots like 's'.

2001-07-03  Nick Clifton  <nickc@cambridge.redhat.com>

	* doc/invoke.texi (Directory Options): Specifiy range for <N> in
	-B option.  Use 'dir' not 'foo' as example directory name.

2001-07-03  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	* config/i386/sol2.h (ASM_PREFERRED_EH_DATA_FORMAT): Define.
	Fixes PRs bootstrap/3067, bootstrap/3249, bootstrap/3275.

2001-07-03  Joseph S. Myers  <jsm28@cam.ac.uk>

	* doc/cppinternals.texi: Improve formatting and logical markup.

2001-07-03  Andreas Jaeger  <aj@suse.de>

	* Makefile.in (insn-recog.o): Add dependency on reload.h.

	* genrecog.c (write_header): Include reload.h for prototypes in
	insn-recog.c.

2001-07-03  Neil Booth  <neil@daikokuya.demon.co.uk>

config:
	* i386/cygwin.h (VALID_MACHINE_DECL_ATTRIBUTE,
	VALID_MACHINE_TYPE_ATTRIBUTE): Remove.
	* i386/i386-protos.h (i386_pe_valid_decl_attribute_p,
	i386_pe_valid_type_attribute_p): Add.
	* i386/i386.c (TARGET_INITIALIZER): Override for cygwin targets.
	* i386/winnt.c (i386_valid_decl_attribute_p): Return directly.

Mon Jul  2 21:52:19 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* explow.c (plus_constant_wide, case LO_SUM): New case.
	(plus_constant_for_output_wide): Delete.
	* rtl.h (plus_constant_for_output): Delete.
	* alias.c (canon_rtx, init_alias_analysis): Call plus_constant
	instead of plus_constant_for_output.
	* recog.c (offsettable_address_p, adj_offsettable_operand): Likewise.
	* config/darwin.c, config/arm/arm.c, config/m68k/m68k.c: Likewise.
	* config/m88k/m88k.c, config/mips/mips.c, config/pa/pa.c: Likewise.
	* config/rs6000/rs6000.c, config/sparc/sparc.c: Likewise.
	* config/sparc/sparc.md: Likewise.
	Convert some change_address calls to adjust_address.

2001-07-03  Joseph S. Myers  <jsm28@cam.ac.uk>

	* doc/extend.texi, doc/gcc.texi, doc/invoke.texi, doc/md.texi,
	doc/rtl.texi, doc/tm.texi: Improve formatting.  Improve
	documentation of -std and -Wwrite-strings.

2001-07-02  Geoffrey Keating  <geoffk@redhat.com>

	* cse.c (canon_hash): Don't register registers in very small
	register classes, as extending their lifetime might cause
	reload to fail.

Mon Jul  2 23:14:00 CEST 2001  Jan Hubicka  <jh@suse.cz>

	* flow.c (try_redirect_by_replacing_jump): Remove cc0 setter.

	* flow.c (forwarder_block_p): Fix for fallthru blocks.
	(try_redirect_by_replacing_jump): Update properly the count
	and frequency information.

Mon Jul  2 14:20:13 2001  Jeffrey A Law  (law@cygnus.com)

	* toplev.c (dump_file_index): Move SSA dumps just after first
	jump dump.
	(dump_file): Corresponding changes.
	(rest_of_compilation): Move SSA path to just after the first
	jump pass.
	* doc/gcc.texi (Passes): Update due to movement of SSA path.
	* doc/invoke.texi: Update dump file #s as they were completely
	out of date with reality.

2001-07-02  Geoffrey Keating  <geoffk@redhat.com>

	* doc/tm.texi (Frame Layout): Document STACK_PUSH_CODE.

	* expr.c (emit_move_insn_1): Deal with non-default
	STACK_PUSH_CODE.

	* expr.c (emit_single_push_insn): Fix warning.

2001-07-02  Toshiyasu Morita  <toshiyasu.morita@hsa.hitachi.com>

	* expr.c (emit_move_insn_1): Avoid modifying
	cfun->expr->x_stack_pointer when PUSH_ROUNDING is defined.

Mon Jul  2 15:33:31 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* emit-rtl.c (adjust_address): New function.
	* expr.h (adjust_address): Add declaration.
	* builtins.c: Replace some calls to change_address with calls to it
	or to validize_mem.
	* caller-save.c, dwarf2out.c, except.c, expmed.c, expr.c: Likewise.
	* function.c, config/a29k/a29k.md, config/alpha/alpha.c: Likewise.
	* config/arm/arm.c, config/convex/convex.c: Likewise.
	* config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise.
	* config/i386/i386.c, config/i386/i386.md: Likewise.
	* config/ia64/ia64.c, config/ia64/ia64.md: Likewise.
	* config/m32r/m32r.c, config/m68k/m68k.md: Likewise.
	* config/m88k/m88k.c, config/mips/mips.md: Likewise.
	* config/ns32k/ns32k.c, config/rs6000/rs6000.c: Likewise.
	* config/sh/sh.c, config/sparc/sparc.md: Likewise.

2001-07-02  Jim Wilson  <wilson@redhat.com>

	* config/ia64/ia64.h: Delete obsolete lib1funcs.asm comment.

2001-07-02  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/t-ia64: Change LIB1ASMFUNCS to use single underscore.
        * config/ia64/lib1funcs.asm: Change macro names to match t-ia64.

2001-07-02  Zack Weinberg  <zackw@stanford.edu>

	* cppinit.c (lang_defaults): New table.
	(set_lang): Just read from lang_defaults into the live options
	structure.

2001-07-02  Zack Weinberg  <zackw@stanford.edu>

	* Makefile.in (doc): Depend on $(GENERATED_MANPAGES).
	* doc/.cvsignore: Add gcc.1, cpp.1, gcov.1.
	* doc/gcc.1, doc/cpp.1, doc/gcov.1: Removed.

2001-07-02  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	* doc/install.texi: Various spelling and markup fixes.
	(Installing GCC): Component specific installation instructions are
	gone.
	Fix reference.
	Warn about removing old install dir in the presence of shared libs.
	(Configuration): Invoke with options target to match configure
	--help.
	Consistently refer to gas, gld pathnames.
	Invert --enable-multilib documentation.
	Remove references to old compiler versions.

Mon Jul  2 12:50:51 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* flow.c (try_simplify_condjump): Fix typo in updating fallthru flags.

2001-07-02  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	* doc/install.texi (Specific, mips*-sgi-irix4): Split from IRIX 5
	section.
	(Specific, mips*-sgi-irix5): Note IDO download.
	Reworded MIPS C hints.
	Use GNU as instead of GAS.
	Markup fixes.
	Removed SGI Freeware reference, IRIX 6 only.
	(Specific, mips*-sgi-irix6): Removed ranlib caveats, obsolete.
	Note N64 library requirement/workaround.
	Update O32 hints.
	Complete list of structure passing bug victims.

2001-07-02  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* doc/install.texi: Remove CVS Id.

2001-07-02  Andreas Jaeger  <aj@suse.de>

	* ssa-dce.c (note_inherently_necessary_set): Add unused attribute.
	(find_inherently_necessary): Remove unused variable.

2001-07-02  Nathan Sidwell  <nathan@codesourcery.com>

	* c-common.h (TDI_inlined): New ast dump phase.
	(dump_flag_name): New function.
	* c-dump.c (dump_files): Add inlined phase.
	(dump_flag_name): Define.
	* doc/invoke.texi (-fdump-ast-inlined): Document.

Mon Jul  2 06:29:36 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* stor-layout.c (layout_decl): Revert change to handling of alignment
	in packed types.

Sun Jul  1 11:53:52 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* c-common.c (decl_attributes, case A_MODE): Don't call layout_decl
	for FIELD_DECL.

2001-07-01  Geoffrey Keating  <geoffk@redhat.com>

	* doc/tm.texi (FUNCTION_ARG): Document that the last call
	is special.

2001-07-01  Nathan Sidwell  <nathan@codesourcery.com>

	* tlink.c (recompile_files): Remove COMPILER_PATH and
	LIBRARY_PATH from the environment.

2001-07-01  Zack Weinberg  <zackw@stanford.edu>

	* c-common.h (enum rid): Add RID_FIRST_AT, RID_LAST_AT,
	RID_LAST_PQ.  Move RID_FIRST_PQ down with the other FIRST/LAST
	enumerators.
	(OBJC_IS_AT_KEYWORD, OBJC_IS_PQ_KEYWORD): New macros.

	* c-parse.in (OBJC_STRING): Kill.
	(objc_string): Decompose to [objc_string] '@' STRING.
	(reswords): Take the leading '@' off all the Objective C keywords.
	(objc_rid_sans_at): Kill.
	(init_reswords): Don't initialize it.
	(yylexname): Use OBJC_IS_AT_KEYWORD and OBJC_IS_PQ_KEYWORD.
	(_yylex): Kill reconsider label.  Look ahead one token after
	an '@'; if we get an identifier, check whether it's an
	Objective C @-keyword.  If so, return the keyword.  Otherwise,
	put back the token and return the '@' as a terminal.

	* cpplib.c (lex_macro_node): Remove unnecessary check for
	leading '@' on identifier.  Clarify control flow and commentary.

Sun Jul  1 11:53:52 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* cse.c (new_label_ref): Variable deleted.
	(insert): Remove set of new_label_ref.
	(check_for_label_ref): New function.
	(cse_basic_block): Don't check new_label_ref; call check_for_label_ref.

See ChangeLog.5 for earlier changes.

From-SVN: r43861
 2001-07-09 07:20:51 -04:00
Diego Novillo
4531c1c787 combine.c (combine_simplify_rtx): Also recompute 'mode' if the call to simplify_binary_operation returns a new... 
2001-07-06  Diego Novillo  <dnovillo@redhat.com>

	* combine.c (combine_simplify_rtx): Also recompute 'mode' if the
	call to simplify_binary_operation returns a new pattern.

From-SVN: r43826
 2001-07-06 18:39:17 -04:00
Andrew Haley
2a8bb5cfe6 combine.c (nonzero_bits): Don't optimize away division by zero. 
2001-06-14  Andrew Haley  <aph@redhat.com>

	* combine.c (nonzero_bits): Don't optimize away division by
	zero.

From-SVN: r43398
 2001-06-15 13:27:03 +00:00
Jan Hubicka
4db384c950 predict.def: New file. 
* predict.def: New file.
	* predict.h: New file.
	* predict.c: Include predict.h.
	(predictor_info): New structure and array.
	(predict_edge, predict_insn): Rewrite; make global.
	(predict_edge_def, predict_insn_def): New global functions.
	(dump_prediction, combine_predictions_for_insns): New
	static functions.
	(estimate_probability): Change calls to predict_edge
	to predict_edge_def and calls to predict_insn to predict_insn_def;
	combine probabilities.
	(expected_value_to_br_prob): Behave as predictor.
	* rtl.h (REG_BR_PRED): Update coment.
	(invert_br_probabilities): New.
	* jump.c: Include predict.h
	(duplicate_loop_exit_test): Drop branch prediction notes.
	(invert_jump): Use invert_br_probabilities.
	* Makefile.in: Add dependancy on predict.h for jump and predict pass.
	* ifcvt.c (dead_or_predicable): Use invert_br_probabilities.
	* combine.c (distribute_notes): Handle BR_PRED.

From-SVN: r43115
 2001-06-09 22:39:25 +00:00
Jan Hubicka
0631e0bfb7 rtlanal.c (operand_preference): Fix preference for objects. 
* rtlanal.c (operand_preference): Fix preference for objects.

	* gcse.c (handle_avail_expr): Be prepared to handle single_set
	parallels.

	* combine.c (if_then_else_cond): Use simplify_subreg instead
	of operand_subword.
	* integreate.c (sub_constants): Likewise.

	* emit-rtl.c (constant_subword): Deprecate; remove most of code
	and use simplify_gen_subreg.

Mon Jun  4 19:55:23 CEST 2001  Lars Brinkhoff  <lars@nocrew.org>

	* sibcall.c (skip_copy_to_return_value): recognize the situation
	when the called function's return value is copied into an
	intermediate pseudo, and then into the calling functions return
	value register.

From-SVN: r42864
 2001-06-04 18:04:36 +00:00