* expr.c (expand_expr, case COMPONENT_REF): If reg, copy OP0 to MEM
both if OFFSET specified and if result BLKmode for ARRAY_RANGE_REF.
From-SVN: r69308
PR optimization/11059
* expr.c (can_store_by_pieces): Return true if length is zero.
(store_by_pieces): If length is zero and endp is two, abort,
othwerise, if length is zero and endp is not two, return "to".
(clear_by_pieces): Do nothing if length is zero.
(clear_storage): Do nothing if length is zero.
(store_constructor): Simplify code when size is zero, or the
target has already been cleared. This avoids emitting a
blockage instruction when initializing empty structures.
* g++.dg/opt/emptyunion.C: New testcase.
From-SVN: r69049
* expr.c (expand_expr, case COMPONENT_REF): When seeing if should use
bitfield operations, use STRICT_ALIGNMENT, not SLOW_UNALIGNED_ACCESS
if EXPAND_CONST_ADDRESS or EXPAND_INITIALIZER.
From-SVN: r68968
* expr.c (do_store_flag): Pass in the correct result type
when calling fold_single_bit_test.
* fold-const.c (fold_single_bit_test): Use result_type for the
result when folding a sign bit test.
From-SVN: r68940
* expr.c (do_store_flag): Remove special case folding for
single bit tests. Instead call back into the commonized folder
routine.
* fold-const.c (fold_single_bit_test): New function, mostly
extracted from do_store_flag, with an additional case extracted
from fold.
(fold): Call fold_single_bit_test appropriately.
* tree.h (fold_single_bit_test): Prototype.
From-SVN: r68867
PR optimization/11210
* expr.c (handled_component_p) [NOP_EXPR]: Add ??? note
about the behaviour with regard to bitfields.
* fold-const (decode_field_reference): Record outermost type in
case the expression is a NOP. Strip all NOPs. Set the signedness
to that of the outermost type (if any) when the bitsize is equal
to the size of the type.
From-SVN: r68823
* expr.c (emit_single_push_insn): If padding is needed
downward, adjust the stack pointer first, and then store the
data into the stack location using an offset.
From-SVN: r68670
* expr.c (expand_expr <PLUS_EXPR>): If operand_equal_p considers
both operands of the addition equal, reuse the expanded RTL.
(expand_expr <MULT_EXPR>): Likewise for multiplication.
From-SVN: r68012
* expr.h (EXPAND_MEMORY): New.
* expr.c (expand_expr): Check it.
* stmt.c (expand_asm_operands): Provide it when the constraint
requires a memory. Warn for memory input constraints without
a memory operand.
* gcc.dg/20011029-2.c: Fix the array reference.
* gcc.dg/asm-7.c: New.
From-SVN: r67645
* cse.c (cse_insn): Simplify REG_EQUAL note on libcalls when
making a substitution.
(dead_libcall_p): If directly replacing a libcall with a
constant value produces an invalid instruction, also try forcing
the constant into the constant pool.
* expr.c (emit_move_insn): Add a REG_EQUAL note when it is not
obvious that the source is a constant.
(compress_float_constant): Use set_unique_reg_note to place
REG_EQUAL notes on instructions.
From-SVN: r67247
* expr.c (move_by_pieces): Honor the alignment of TO and FROM.
(emit_push_insn): Don't use push when the source alignment is less
than the stack's push rounding.
From-SVN: r66770
* stmt.c (force_label_rtx): New function, based on logic
formerly found in expand_expr.
* expr.h: Prototype it.
* expr.c (expand_expr <LABEL_DECL>): Use force_label_rtx if
appropriate.
* varasm.c (decode_addr_const <LABEL_DECL>): Use force_label_rtx.
* print-tree.c (debug_tree): Free the table after we're done
with it. Use putc.
treelang:
* Make-lang.in: Set -Wno-error for treelang/lex.o.
From-SVN: r66579
* expr.c (expand_expr, case BIT_FIELD_REF): Refine the test forcing
usage of bitfield instructions for mode1 != BLKmode, only ignoring
SLOW_UNALIGNED_ACCESS if the field is not byte aligned.
(store_field): Likewise.
From-SVN: r66492
* expr.c (store_field): Don't clobber TEMP in shift: it might be
a variable.
(get_inner_reference): Don't go through a VIEW_CONVERT_EXPR
whose purpose is to step up the alignment.
(expand_expr, case ADDR_EXPR): Force LO_SUM into memory, just like REG.
From-SVN: r66465
* emit-rtl.c (last_call_insn, add_function_usage_to): New functions.
* rtl.h (last_call_insn, add_function_usage_to): New prototypes.
* builtins.c (expand_builtin_apply): Use the new emit-rtl functions.
* calls.c (emit_call_1): Likewise.
(expand_call): For calls initializing constant memory, replace
emission of standalone mem /u clobber with function usage entry.
* expr.c (emit_block_move_via_libcall): Likewise.
* cse.c (count_reg_usage, case EXPR_LIST): New case.
* flow.c (propagate_one_insn): Pass entire operand of
CALL_INSN_FUNCTION_USAGE to mark_used_regs.
* integrate.c (try_constants): For CALL_INSNs, substitute constants
within the FUNCTION_USAGE also.
* loop.c (prescan_loop): Note clobbers of const mem mentioned in
FUNCTION_USAGE lists.
* reload1.c (replace_pseudos_in): Renamed.
(reload): Use it for clobbers surviving until the end of the reload.
From-SVN: r66429
* c-decl.c (finish_decl): When prototype with asmspec is found
for built-in, adjust built_in_decls as well as expr.c decls.
* expr.c (init_block_move_fn, init_block_clear_fn): New functions.
(emit_block_move_libcall_fn, clear_storage_libcall_fn): Use it.
* expr.c (init_block_move_fn, init_block_clear_fn): New prototypes.
* gcc.c-torture/execute/string-opt-asm-1.c: New test.
* gcc.c-torture/execute/string-opt-asm-2.c: New test.
From-SVN: r66181
* expr.c (expand_expr <COMPLEX_CST, STRING_CST>): Always call
output_constant_def, use its result instead of TREE_CST_RTL (exp).
Can assume it has the form (mem (symbol_ref ".LCxxx")).
(expand_expr <COMPONENT_REF>): Can always just extract the
relevant field of a CONSTRUCTOR.
(expand_expr <ARRAY_REF, COMPONENT_REF, BIT_FIELD_REF,
ARRAY_RANGE_REF>): Make control flow explicit.
* varasm.c (output_constant_def): Can look at TREE_CST_RTL of
an INTEGER_CST.
From-SVN: r66148
PR 8866
* rtl.h (MEM_NOTRAP_P): New.
(MEM_COPY_ATTRIBUTES): Copy it.
* rtlanal.c (may_trap_p): Check it.
* expr.c (do_tablejump): Set it.
* doc/rtl.texi (Flags): Document it.
* cfgrtl.c (try_redirect_by_replacing_jump): Revert last three changes.
From-SVN: r65967
* expr.c (store_field): Force usage of bitfield instructions when
the field position requires it, whatever SLOW_UNALIGNED_ACCESS.
(expand_expr, case BIT_FIELD_REF): likewise.
From-SVN: r65701
* expr.c (expand_assignment): Extend offset_rtx with convert_to_mode
not with convert_memory_address.
(store_constructor): Ditto, and same for copy_size_rtx.
(expand_expr): Ditto.
From-SVN: r65433
PR c/9516
* expr.c (safe_from_p): Rearrange to avoid deep recursion in
favour of looping and tail recursion for TREE_LIST and binops.
Co-Authored-By: Richard Henderson <rth@redhat.com>
From-SVN: r65363
PR c++/10091
* expr.c (expand_expr) [ADDR_EXPR]: Disallow taking the address of
an unaligned member of TREE_ADDRESSABLE type.
* cp/typeck.c (build_class_member_access_expr): Compare
TYPE_MAIN_VARIANTs.
From-SVN: r64520
PR c++/7050
* expr.c (store_expr): Don't attempt to store void-typed trees,
just evaluate them for side effects.
* cp/expr.c (cxx_expand_expr): Return const0_rtx for throw
expressions.
From-SVN: r64268
* objc-act.c: Include cgraph.h
(mark_referenced_methods): New function.
(objc_init): Call it.
* objc-lang.c (LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION): Set.
* c-decl.c (finish_function): Honor can_defer_p even in unit-at-a-time
mode.
* optabs.c (expand_fix): Do not widen the input operand.
* expr.c (emit_group_store): Fix crash when converting single
register into complex register.
* Makefile.in (jump.o, regclass.o, alias.o): Add dependency on timevar.h
* alias.c: Include timevar.h
(init_alias_analysis): Set timevar
* jump.c: Include timevar.h
(rebuild_jump_labels): Set timevar
* regcalss.c: Include timevar.h
(reg_scan): Set timevar
* timevar.def (TV_ALIAS_ANALYSIS, TV_REG_SCAN, TV_REBUILD_JUMP): New
From-SVN: r63464
* calls.c (store_one_arg): Revert 1999-02-16 change. Revert
2000-12-17 change. Pass EXPAND_STACK_PARM to expand_expr.
* expr.h (enum expand_modifier): Define EXPAND_STACK_PARM.
(enum block_op_methods): Reorder for better store_expr optimization.
* expr.c (store_expr): Test bit 1 of "want_value" for call param
stores, test bit 0 for original want_value meaning. Pass
BLOCK_OP_CALL_PARM to emit_block_move when bit 1 set. Adjust
recursive calls, and calls to expand_param.
(expand_expr): Handle EXPAND_STACK_PARM modifier. When cse
expected, set target to 0 rather than to subtarget. Formatting.
From-SVN: r63337
* expr.c (gen_group_rtx, emit_group_move): New functions.
* expr.h (gen_group_rtx, emit_group_move): Prototype.
* function.c (expand_function_start): Use gen_group_rtx to create a
PARALLEL rtx to hold the return value when the real return rtx is a
PARALLEL.
(expand_function_end): Use emit_group_move to move the return value
from a PARALLEL to the real return registers.
* rtl.h (REG_FUNCTION_VALUE_P): Allow function values to be returned
in PARALLELs.
From-SVN: r59554
2002-11-10 H.J. Lu <hjl@gnu.org>
* calls.c (PUSH_ARGS_REVERSED): Define only if not defined.
* expr.c (PUSH_ARGS_REVERSED): Likewise.
* config/i386/i386.h (PUSH_ARGS_REVERSED): Set to 1.
From-SVN: r59002
PR c/7411
* expr.c (expand_expr) [PLUS]: Simplify after the operands
have been expanded in EXPAND_NORMAL mode.
Co-Authored-By: Volker Reichelt <reichelt@igpm.rwth-aachen.de>
From-SVN: r57882
* expr.c (emit_group_load): Revise to allow splitting TCmode source
into DImode pieces.
* pa-64.h (LONG_DOUBLE_TYPE_SIZE): Define to 128.
* pa64-regs.h (CLASS_CANNOT_CHANGE_MODE_P): Inhibit changes from SImode
for floating-point register class.
* pa.c (function_arg): Fix handling of modes wider than one word for
TARGET_64BIT.
From-SVN: r56805
* expr.c (TARGET_MEM_FUNCTIONS): Transform to boolean.
(emit_block_move): Split out subroutines.
(emit_block_move_via_movstr): New.
(emit_block_move_via_libcall): New. Emit bcopy via normal call also.
(emit_block_move_libcall_fn): New. Construct function prototype for
bcopy as well.
(clear_storage): Split out subroutines.
(clear_storage_via_clrstr): New.
(clear_storage_via_libcall): New. Emit bzero as a normal call also.
(clear_storage_libcall_fn): New. Construct function prototype for
bzero as well.
(emit_push_insn): Use emit_block_move.
(expand_assignment): Booleanize TARGET_MEM_FUNCTIONS.
(store_constructor): Likewise.
From-SVN: r56464
* langhooks-def.h (LANG_HOOKS_EXPR_SIZE): New macro.
* langhooks.c (lhd_expr_size): Define default.
* langhooks.h (struct lang_hooks): Add expr_size.
* explow.c (expr_size): Call it.
* expr.c (store_expr): Don't copy an expression of size zero.
(expand_expr) [CONSTRUCTOR]: Use expr_size to calculate how much
to store.
* Makefile.in (builtins.o): Depend on langhooks.h.
* cp-lang.c (LANG_HOOKS_EXPR_SIZE): Define.
(cp_expr_size): New fn.
* call.c (build_over_call): Lose empty class hackery.
(convert_arg_to_ellipsis): Promote non-POD warning to error.
* typeck.c (build_modify_expr): Don't use save_expr on an lvalue.
From-SVN: r55983
* emit-rtl.c (set_mem_attributes_minus_bitpos): Rename from
set_mem_attributes and add BITPOS argument. Subtract it from
OFFSET when same is adjusted.
(set_mem_attributes): New wrapper function.
* expr.c (expand_assignment): Use set_mem_attributes_minus_bitpos;
remove offset adjustment hack.
* expr.h (set_mem_attributes_minus_bitpos): Declare.
From-SVN: r55846
* expr.c (expand_expr) [TRY_FINALLY_EXPR]: Don't use
GOTO_SUBROUTINE_EXPR when finally_block can be re-expanded.
* lang.c (java_unsafe_for_reeval): New.
(LANG_HOOKS_UNSAFE_FOR_REEVAL): New.
From-SVN: r55636
* expr.c (emit_move_insn_1): Handle arbitrary moves that are
the same size as a word.
* regrename.c (find_oldest_value_reg): Take WORDS_BIG_ENDIAN /
BYTES_BIG_ENDIAN into account.
From-SVN: r55482
* expr.c [CLEAR_RATIO]: New macro defining the maximum number
of move instructions to use when clearing memory, c.f. MOVE_RATIO.
[CLEAR_BY_PIECES]: New macro, using CLEAR_RATIO, to determine
whether clear_by_pieces should be used to clear storage.
(clear_storage): Use CLEAR_BY_PIECES instead of MOVE_BY_PIECES.
* doc/tm.texi: Document these two new target macros.
From-SVN: r55429
2002-06-16 Aldy Hernandez <aldyh@redhat.com>
* gcc.c-torture/execute/simd-1.c: New.
* gcc.dg/simd-1.c: New.
* doc/extend.texi (Vector Extensions): Document that we can
specify simd types not specifically supported by the hardware.
Document that simd types can be used as function arguments.
Document that signness does make a difference in SIMD types.
Misc cleanups and revisions to the "vector extensions" section.
* simplify-rtx.c (simplify_subreg): Simplify subregs of vector
constants.
* expr.c (vector_mode_valid_p): New.
* expr.h: Add vector_mode_valid_p.
* defaults.h (VECTOR_MODE_SUPPORTED_P): Set default.
* emit-rtl.c (immed_double_const): Do not abort on vectors.
* c-common.c (type_for_mode): Always build vector nodes regardless
of VECTOR_MODE_SUPPORTED_P.
(handle_mode_attribute): Error if we can't emulate a nonexisting
vector mode.
(handle_vector_size_attribute): Same.
* optabs.c (expand_binop): Open-code vector operations.
(expand_unop): Open-code vector unops.
(expand_vector_binop): New.
(expand_vector_unop): New.
* c-typeck.c (build_binary_op): Allow vectors in binops.
Allow vectors in conditional operatiors.
(build_unary_op): Allow vectors in unary minus.
* config/rs6000/rs6000.h (ALTIVEC_VECTOR_MODE): Conditionalize on
TARGET_ALTIVEC.
From-SVN: r54727
* expr.c (compare_from_rtx): Call simplify_relational_operation
on all comparisons, not just those between integer constants,
with the correct (possibly unsigned) comparison code.
(do_compare_rtx_and_jump): Likewise.
From-SVN: r54657
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
* alias.c (static_reg_base_value): New to hold RTL for
items allocated once per function for the aliasing code.
(init_alias_once_per_function): Initialize static_reg_base_value.
(init_alias_analysis): Avoid throw-away allocations of RTL by
using pre-computed values in static_reg_base_value.
* function.c (prepare_function_start): Call
init_alias_once_per_function appropriately.
* rtl.h (init_alias_once_per_function): Declare.
* caller-save (init_caller_save): Restructure slightly to
avoid lots of silly RTL generation.
* expr.c (init_expr_once): Likewise.
* reload1.c (reload_cse_regs_1): Allocate throw-away register
RTL object here. Pass it into children.
(reload_cse_simplify_operands): Use passed-in register RTL
object.
(reload_cse_simplify): Pass through throw-away register
RTL object.
From-SVN: r54442
* tree.h: Forward-declare struct realvaluetype.
(struct tree_real_cst): Point to the REAL_VALUE_TYPE, do not
contain it.
(TREE_REAL_CST_PTR): New accessor.
(TREE_REAL_CST): Update.
* real.h: Include machmode.h.
(realvaluetype): Make it struct realvaluetype, not a typedef.
(build_real): Prototype here.
* tree.c: Include real.h.
(build_real): Allocate the REAL_VALUE_TYPE as a separate
object in GC memory, set TREE_REAL_CST_PTR to point to it.
(build_real_from_int_cst): Use build_real.
* ggc-common.c (ggc_mark_trees): Mark TREE_REAL_CST_PTR of a
REAL_CST.
* builtins.c, c-common.c, c-lex.c, dwarf2out.c, expr.c,
fold-const.c, print-tree.c, real.c, cp/mangle.c, cp/tree.c,
f/bld.c, f/com.c, f/expr.c, f/target.c, java/decl.c,
java/jcf-parse.c, java/parse.y, java/typeck.c: Include real.h.
* Makefile.in, cp/Make-lang.in, f/Make-lang.in,
java/Make-lang.in: Update dependency lists.
From-SVN: r53959
PR middle-end/6600
* expr.c (STORE_MAX_PIECES): New macro to avoid immediate constants
larger than INTEGER_CST. (store_by_pieces_1): Use it here...
(can_store_by_pieces): ... and here to limit the largest mode used.
Add a comment to document this function.
From-SVN: r53706
* expr.c (init_expr_once): Don't use start/end_sequence.
Use rtx_alloc instead of emit_insn.
* toplev.c (lang_dependent_init): Run init_expr_once here ...
(lang_independent_init): ... not here.
From-SVN: r53572
* 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
* expr.c (compress_float_constant): New.
(emit_move_insn): Use it.
(float_extend_from_mem): New.
(init_expr_once): Initialize it.
* real.c (exact_real_truncate): New.
* config/i386/i386.h (CONST_COSTS): Assume CONST_DOUBLE gets
dropped into memory; penalize for size.
(RTX_COSTS): FLOAT_EXTEND is free.
* config/i386/i386.md (extendsfdf2, extendsfxf2, extendsftf2,
extenddfxf2, extenddftf2): Accept constants and drop them to memory.
From-SVN: r53401
PR optimization/5999, middle-end/5731
* expr.c (expand_expr) [RDIV_EXPR]: Only convert real divisions into
multiplications by reciprocals.
* gcc.c-torture/compile/20020319-1.c: New test.
From-SVN: r51071
* expr.c (expand_expr, case NE_EXPR): Do not call copy_to_reg with
VOIDmode operand. Add compile-time optimization for constant results.
From-SVN: r50734
* 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
* expr.c (store_expr): When converting expression to promoted
equivalent type, allow using SUBREG_REG of TARGET as the target
of the expansion of EXP.
* loop.c (basic_induction_var, case SUBREG): Always look inside.
* config/alpha/alpha.c (rtx_equiv_function_matters): Delete decl.
(alpha_emit_set_const): Handle SImode when can't make new pseudos.
(alpha_emit_set_const_1, alpha_sa_mask): Use no_new_pseudos.
* config/alpha/alpha.md (addsi3, subsi3): Don't use if optimizing.
From-SVN: r49972
* emit-rtl.c (offset_address): Use simplify_gen_binary rather
than gen_rtx_PLUS to form the sum.
* explow.c (force_reg): Rearrange to not allocate new pseudo
when force_operand returns a register.
* expr.c (expand_assignment): Allow offset_rtx expansion to
return a sum. Do not force addresses into registers.
(expand_expr): Likewise.
* simplify-rtx.c (simplify_gen_binary): Use simplify_plus_minus
to canonicalize arithmetic that didn't simpify.
(simplify_plus_minus): New argument force; update
all callers. Don't split CONST unless we can do something with it,
and wouldn't lose the constness of the operands.
* config/i386/i386.c (legitimize_pic_address): Recognize UNSPECs
that we generated earlier.
From-SVN: r49945
* expr.c (force_operand): Ignore flag_pic for detecting pic
address loads.
* regclass.c (init_reg_sets_1): Test fixed_regs not flag_pic
for determining if PIC_OFFSET_TABLE_REGNUM is call-clobbered.
* resource.c (mark_target_live_regs): Use regs_invalidated_by_call
instead of open-coded loop.
* doc/tm.texi (PIC_OFFSET_TABLE_REGNUM): Clarify that it must
be fixed when in use.
From-SVN: r49329
* diagnostic.c (warn_deprecated_use): Rework to lower indentation.
* expr.c (emit_move_insn_1): Remove warning, use HOST_WIDE_INT for
offsets, and change line folding.
* optabs.c (expand_binop): Remove warnings.
* sdbout.c (sdbout_record_type_name): Constify NAME to avoid warning.
From-SVN: r48801
* tree.h (expand_expr_stmt_value): Add maybe_last argument.
* c-common.h (genrtl_expr_stmt_value): Likewise.
* stmt.c (expand_expr_stmt): Pass 1 as maybe_last.
(expand_expr_stmt_value): Add maybe_last argument.
Don't warn about statement with no effect if it is the last statement
in expression statement.
* c-semantics.c (genrtl_expr_stmt): Pass 1 as maybe_last.
(genrtl_expr_stmt_value): Add maybe_last argument, pass it down to
expand_expr_stmt_value.
(expand_stmt) [EXPR_STMT]: Pass 1 as maybe_last to
genrtl_expr_stmt_value if t is the last EXPR_STMT in its scope.
* expr.c (expand_expr) [LABELED_BLOCK_EXPR, LOOP_EXPR]: Pass 1
as maybe_last to expand_expr_stmt_value.
* gcc.dg/20020104-1.c: New test.
From-SVN: r48541
* c-common.h (genrtl_expr_stmt_value): Declare.
* c-semantics.c (genrtl_goto_stmt): Redirect to...
(genrtl_goto_stmt_value): ... this new function. Pass new
argument down to expand_expr_stmt_value, taking
TREE_ADDRESSABLE into account.
* c-common.c (c_expand_expr): Mark the last EXPR_STMT of a
STMT_EXPR as addressable, i.e., one whose result we want.
* expr.c (expand_expr): Don't save expression statement value
of labeled_blocks or loop_exprs.
* stmt.c (expand_expr_stmt): Redirect to...
(expand_expr_stmt_value): ... this new function. Use new
argument to tell whether to save expression value.
(expand_end_stmt_expr): Reset last_expr_type and
last_expr_value if we don't have either.
* tree-inline.c (declare_return_variable): Mark its use
statement as addressable.
* tree.h: Document new use of TREE_ADDRESSABLE.
(expand_expr_stmt_value): Declare.
From-SVN: r48456
* expr.c (store_field): Use adjust_address, not PUT_MODE.
(expand_expr, case VIEW_CONVERT_EXPR): Likewise.
* reload1.c (eliminate_regs, case SUBREG): Likewise, but use
adjust_address_nv.
* varasm.c (make_decl_rtl): Likewise.
* integrate.c (copy_rtx_and_substitute, case MEM): Likewise, but use
replace_equiv_address_nv.
From-SVN: r48387
* expmed.c (emit_store_flag): Extract updated comparison code
from the return value of compare_from_rtx.
* expr.c (do_store_flag): Similarly.
From-SVN: r48128
* expr.c (copy_blkmode_from_reg): Add missing braces to eliminate
warning and reformat comments.
(expand_assignment): Don't pass EXPAND_WRITE if LHS is component.
(highest_pow2_factor, case INTEGER_CST): Return BIGGEST_ALIGNMENT
if overflow.
From-SVN: r47983
2001-12-11 Steve Ellcey <sje@cup.hp.com>
* doc/tm.texi (FUNCTION_ARG_REG_LITTLE_ENDIAN): New.
* defaults.h (FUNCTION_ARG_REG_LITTLE_ENDIAN): New.
* calls.c (store_unaligned_arguments_into_pseudos): Check
FUNCTION_ARG_REG_LITTLE_ENDIAN to see how structures
are passed/returned.
* expr.c (move_block_from_reg): Ditto.
(move_block_from_reg): Ditto.
(copy_blkmode_from_reg): Ditto.
* stmt.c (expand_return): Ditto.
* stor-layout.c (compute_record_mode): If
FUNCTION_ARG_REG_LITTLE_ENDIAN is set then check
MEMBER_TYPE_FORCES_BLK even if mode == VOIDmode.
* config/ia64/hpux.h (MEMBER_TYPE_FORCES_BLK): Set to true
so that Structures of one field are still treated as structures.
(FUNCTION_ARG_REG_LITTLE_ENDIAN): New, set it to true.
(FUNCTION_ARG_PADDING): Set to ia64_hpux_function_arg_padding().
(PAD_VARARGS_DOWN): Modify from default to not pad structures down.
* config/ia64/ia64-protos.h (ia64_hpux_function_arg_padding): New.
* config/ia64/ia64.c (ia64_hpux_function_arg_padding): New function
to special case handling of structure padding.
From-SVN: r47904
* expr.c (store_field): Remove warning.
(expand_expr, case COMPONENT_REF, case VIEW_CONVERT_EXPR): Likewise.
(highest_pow2_factor, case MIN_EXPR, case MAX_EXPR): Add cases.
(highest_pow2_factor, case *_DIV_EXPR): Only can do something if
divisor constant power of 2.
(highest_pow2_factor, case COMPOUND_EXPR): Look at operand 1.
From-SVN: r47753
* expr.c (store_expr): When copying string constant into array,
use functions that update memrefs instead of computations on
addresses to better track MEMs. Also properly handle 32/64 pointers.
(expand_expr): Use TARGET even if not reg for multi-word CONSTRUCTOR.
(expand_expr, case CONSTRUCTOR): Fix errors in parms to assign_temp.
From-SVN: r47663
* stmt.c (expand_expr_stmt): Keep last_expr_value non-NULL iff
we're interested in the result. Use it to tell whether to
ignore results of enclosed expressions.
(expand_start_stmt_expr): Added new argument, and initialize
last_expr_value accordingly.
* tree.h (expand_start_stmt_expr): Adjusted declaration.
* c-common.c (c_expand_expr): Adjust call.
* expr.c (expand_expr) [EXPR_WFL]: Pass const0_rtx down if
ignoring the result.
From-SVN: r47607
* expr.c (store_expr): When copying a string constant into an
array, reset the known alignment of the MEM for the section to
be cleared to BITS_PER_UNIT.
From-SVN: r47432
* Makefile.in (c-lang.o): Depends on langhooks-def.h.
(expr.o, varasm.o): Depends on langhooks.h.
* c-common.c (c_safe_from_p): Always declare.
(c_expand_expr): Refine when declared.
* c-lang.c (c-common.h): Now include.
(LANG_HOOKS_SAFE_FROM_P): Define new hook.
(c_init): Don't set lang_safe_from_expr.
* expr.c (langhooks.h): Now include.
(lang_safe_from_p): No longer define.
(safe_from_p): Use lang hook.
(expand_expr): Set IGNORE if VOID_TYPE result of VIEW_CONVERT_EXPR too.
(expand_expr, case VIEW_CONVERT_EXPR): Pass ro_modifier down.
* expr.h (lang_expand_constant, lang_safe_from_p): Delete.
* langhooks-def.h (lhd_return_tree, lhd_safe_from_p): New decls.
(LANG_HOOKS_EXPAND_CONSTANT, LANG_HOOKS_SAFE_FROM_P): New hooks.
* langhooks.c (lhd_return_tree, lhd_safe_from_p): New functions.
* langhooks.h (struct lang_hooks): New fields expand_constant
and safe_from_p.
* output.h (output_constant): Size arg is HOST_WIDE_INT.
* stmt.c (expand_decl_init): No longer need to expand constant
for CONST_DECL.
* stor-layout.c (put_pending_size): Don't check for SAVE_EXPR.
* toplev.c (lang_expand_constant): Delete var.
* tree.c (save_expr): Don't put another SAVE_EXPR around simple
operations on SAVE_EXPR.
* varasm.c (langhooks.h): Now include.
(compare_constant_1): Use lang_hooks, not lang_expand_constant.
(record_constant_1, output_addressed_constants): Likewise.
(initializer_constant_valid_p, output_constant): Likewise.
(output_constant_def): Process no-defer of string constant.
(output_addressed_constants, case ADDR_EXPR): Use handled_component_p.
(output_constant): Strip more conversions.
Track our size and pad for the rest.
(array_size_for_constructor): Remove code for non-byte STRING_CST.
(output_constructor): SIZE now HOST_WIDE_INT.
* cp/Make-lang.in (cp-lang.o): Depends on c-common.h.
* cp/cp-lang.c (c-common.h): Include.
(LANG_HOOKS_EXPAND_CONSTANT, LANG_HOOKS_SAFE_FROM_P): New hooks.
* cp/decl.c (cxx_init_decl_processing): Don't set lang_safe_from_p.
* cp/expr.c (init_cplus_expand): Don't set lang_expand_constant.
From-SVN: r47376
* expr.c (expand_expr, case VIEW_CONVERT_EXPR): Refine slightly
and also support TREE_ADDRESSABLE.
* tree.def (VIEW_CONVERT_EXPR): Document TREE_ADDRESSABLE.
From-SVN: r47249
* tree.def (VIEW_CONVERT_EXPR): New tree code.
* tree.h (handled_component_p): New declaration.
* alias.c (handled_component_p): Move function from here ...
* expr.c (handled_component_p): ... to here and non longer static.
(is_zeros_p, case VIEW_CONVERT_EXPR): New case.
(store_field): Remove unneeded MEM_COPY_ATTRIBUTES call.
(get_inner_reference): Handle VIEW_CONVERT_EXPR.
(expand_expr, case VAR_DECL): Clean up handling of re-layout case.
(expand_expr, case VIEW_CONVERT_EXPR): New case.
(expand_expr, cse ADDR_EXPR): No need to copy if already
BIGGEST_ALIGNMENT.
* fold-const.c (fold, case VIEW_CONVERT_EXPR): New case.
* varasm.c (initializer_constant_value_p, case VIEW_CONVERT_EXPR): New.
(output_constant): Handle VIEW_CONVERT_EXPR.
* dwarf2out.c (loc-descriptor_from_tree, add_bound_info):
Add new case for VIEW_CONVERT_EXPR.
From-SVN: r47179
* expr.c (expand_expr, case VAR_DECL): Update alignment of DECL_RTL
after re-laying out decl in incomplete case.
(expand_expr, case ADDR_EXPR): Fix typo in copy case.
From-SVN: r47153
* tree.h (TYPE_ALIGN_OK): New flag.
* emit-rtl.c (set_mem_attributes): Handle it.
* expr.c (emit_single_push_insn): Only set to alias set 0 if
doing sibcall optimization.
(expand_expr, case COMPONENT_REF): Call set_mem_attributes on case
when make temporary.
(expand_expr, case CONVERT_EXPR): Simplify convert-to-union case.
(expand_expr, case ADDR_EXPR): Abort if TYPE_ALIGN_OK and need copy.
From-SVN: r47149
* expr.c (expand_expr, case ADDR_EXPR): Refine test for when to
copy misaligned data.
* varasm.c (assemble_variable): Set alignment into MEM when changed.
From-SVN: r47089
* Makefile.in (expr.o): Depends on insn-attr.h.
* expr.c (insn-attr.h): New include.
(force_operand): If INSN_SCHEDULING, deal with paradoxical SUBREG
of MEM.
(highest_pow2_factor, case INTEGER_CST): Handle negative values.
(expand_expr): Remove unneeded mark_temp_addr_taken calls and
clean up related usage in ADDR_EXPR.
(expand_expr_unaligned): Likewise.
From-SVN: r46980
* expr.c (stor_constructor_field): Always call adjust_address.
Copy TARGET before changing its alias set.
(store_field): Likewise, for TO_RTX.
(get_inner_reference): Stop at PLACEHOLDER_EXPR if can't find
replacement.
(safe_from_p, case ADDR_EXPR): Properly check for conflict.
(find_placeholder): Return 0 if can't find object.
(expand_expr, case PLACEHOLDER_EXPR): Abort if find_placeholder
returns 0.
From-SVN: r46571
* alias.c (can_address_p): No longer static.
* emit-rtl.c (get_mem_attrs): New parameter, MODE; all callers changed.
Return 0 if all parameters are default values.
(set_mem_attributes): Set MEM_KEEP_ALIAS_SET_P.
(adjust_address_1): Try harder to compute a size.
* expr.c (expand_assignment, store_constructor): If can't address,
set MEM_KEEP_ALIAS_SET_P.
(store_constructor_field): Don't change set if MEM_KEEP_ALIAS_SET_P.
(store_field): Likewise.
(store_constructor): Simplify call to store_constructor_field.
* expr.h (can_address_p): New declaration.
* gensupport.c (gen_rtx_CONST_INT): New function.
* rtl.h (MEM_KEEP_ALIAS_SET_P): New macro.
(MEM_SIZE): Get size from mode, if not set and not BLKmode.
(MEM_COPY_ATTRIBUTES): Copy MEM_KEEP_ALIAS_SET_P.
From-SVN: r46487
* builtins.c (expand_builtin_setjmp): Only call convert_memory_address
if needed.
(expand_builtin_longjmp, expand_builtin_alloca): Likewise.
* except.c (expand_builtin_frob_return_addr): Likewise.
(expand_builtin_eh_return): Likewise.
* stmt.c (expand_computed_goto): Likewise.
* explow.c (memory_address): Likewise.
(allocate_dynamic_stack_space): Clean up predicate testing.
(probe_stack_range): Convert SIZE to Pmode.
* calls.c (rtx_for_function_call): Only call convert_memory_address
if needed.
Pass function call operand as ptr_mode, not Pmode.
* expr.c (expand_assignment): Clean up calls to convert_memory
address by only doing so when needed and making offsets Pmode.
(store_constructor, expand_expr, expand_expr_unaligned): Likewise.
* function.c (assign_parms): Ensure address in MEM for RESULT_DECL
is in Pmode, not ptr_mode.
From-SVN: r46448
* alias.c (can_address_p): Compnonents are not addressable if
the containing type has alias set 0.
(get_alias_set): Rework to use STRIP_NOPS.
Only call front-end routine on object, type, or object with
NOPs stripped, not inner values.
Use language hook to call front-end routine.
* builtins.c (get_memory_rtx): Always call set_mem_attributes.
(expand_builtin_apply): Call set_mem_align on MEMs we make.
Don't pass alignment to emit_block_move.
(expand_builtin_memcpy, expand_builtin_va_copy): Likewise.
(expand_builtin_memset): Likewise, but for clear_storage.
* c-common.c (lang_get_alias_set): Renamed to c_common_alias_set
and remove C++ specific parts.
* c-common.h (c_common_get_alias_set): Add declaration.
* c-lang.c (LANG_HOOKS_GET_ALIAS_SET): New macro.
* calls.c (emit_call_1): Fix typo in sibcall_pop case.
(save_fixed_argument_area): Call set_mem_align.
Remove alignment in call to emit_block_move.
(emit_library_call_value_1, store_one_arg): Likewise.
(target_for_arg): Remove; disabled long ago.
* emit-rtl.c (set_mem_attributes): Rework to only call get_mem_attrs
once and similar cleanups.
(offset_address): Use proper introductory comment.
* expr.c (emit_block_move): Use alignment from that of MEM args, not
from explicit operand; all callers changed.
(clear_storage): Likewise.
(expand_assignment): Don't call set_mem_alias_set on to_rtx.
(store_field): Remove kludge on alias set used for to_rtx.
(highest_pow2_factor, case *_DIV_EXPR): Never return 0.
(expand_expr_unaligned): Call set_mem_attributes instead of
set_mem_alias_set.
* expr.h (emit_block_move, clear_storage): Remove ALIGN argument.
* function.c (assign_stack_temp_for_type): Set MEM alignment.
(expand_function_end): Track MEM attributes of trampolines.
* ifcvt.c (noce_try_cmove_arith): Set alignment of new MEM.
* integrate.c (copy_rtx_and_substitute, case CALL): Copy memory
attributes from original.
* langhooks.c (lang_hook_default_get_alias_set): New function.
(hook_get_alias_set_0): New function.
* langhooks.h (hook_get_alias_set_0): New declaration.
(lang_hook_default_get_alias_set): Likewise.
(LANG_HOOKS_GET_ALIAS_SET): New macro; add to initializer.
* reload1.c (alter_reg): Use adjust_address_nv.
* rtl.c (get_mode_alignment): Moved to here.
* rtl.h (MEM_ALIGN): Take default from mode, if not BLKmode, and
change default if unknown from 1 to BITS_PER_UNIT.
* stor-layout.c (get_mode_alignment): Remove from here.
* toplev.h (struct lang_hoks): Add get_alias_set field.
* tree.h (lang_get_alias_set): Delete declaration.
* config/arc/arc.c (arc_setup_incoming_varags): Set MEM alignment.
* config/i386/i386.c (ix86_setup_incoming_varargs): Likewise.
(ix86_va_arg): Likewise.
* config/i960/i960.c (i960_setup_incoming_varargs): Likewise.
* config/pa/pa.c (hppa_builtin_saveregs): Likewise.
* config/sparc/sparc.c (sparc_va_arg): Likewise.
* config/rs6000/rs6000.c (setup_incoming_varargs): Likewise.
(expand_block_move_mem): Remove dead code.
* cp/cp-lang.c (cxx_get_alias_set): New function.
Point LANG_HOOKS_GET_ALIAS_SET to it.
* f/com.c (LANG_HOOKS_GET_ALIAS_SET): New macro.
(lang_get_alias_set): Delete.
* java/lang.c (lang_get_alias_set): Deleted.
From-SVN: r46440
* langhooks.h (LANG_HOOKS_HONOR_READONLY): New macro.
* toplev.h (struct lang_hooks): New field HONOR_READONLY.
* emit-rtl.c (set_mem_attributes): Set RTX_UNCHANGING_P from
TREE_READONLY and TYPE_READONLY if lang_hooks.honor_readonly.
Set alignment from type if INDIRECT_REF.
(adjust_address_1, offset_address): Simplify alignment compuitation.
* expr.c (expand_expr, case INDIRECT_REF): Don't set RTX_UNCHANGING_P
here; done by set_mem_attributes.
From-SVN: r46361
* emit-rtl.c (gen_reg_rtx): Also reallocate reg_decl array.
(offset_address): New function.
(free_emit_status): Free regno_decl.
(init_emit): Pass proper number of elements to xcalloc.
Allocate regno_decl.
(mark_emit_status): Mark regno_decl values.
* expr.c (highest_pow2_factor): New function.
(expand_assigment): Use it and offset_address.
Properly handle ptr_mode vs. Pmode in offset calculation.
(store_constructor, expand_expr_unaligned): Likewise.
(expand_expr, case COMPONENT_EXPR): Likewise.
* expr.h (offset_address): New decl.
* function.h (struct emit_status): Add regno_decl.
(REGNO_DECL): New macro.
* final.c (output_asm_name): Move in file and don't conditionalize
on flag_print_asm_name.
(output_asm_insn): Only call output_asm_name if flag_print_asm_name.
Output names of operands, if known.
* function.c (assign_parms): Set REGNO_DECL.
* integrate.c (integrate_decl_tree): Likewise.
* stmt.c (expand_decl): Likewise.
* regclass.c (reg_scan_mark_refs): Propagate REGNO_DECL for copies.
From-SVN: r46337
* Makefile.in (print-rtl.o): Depend on TREE_H.
* alias.c (get_alias_set): Make two passes over objects to first
see if inner object is access via restricted pointer.
Defer allocating alias set for restricted pointer until here.
Call find_placeholder with second arg nonzero.
Minor cleanups.
* emit-rtl.c (set_mem_attributes): Set more attributes.
(set_mem_align, change_address, adjust_address_1): New functions.
(change_address_1): Now static.
(adjust_address, adjust_address_nv): Deleted.
(replace_equiv_address): Call change_address_1.
* expr.c (get_inner_reference): Handle PLACEHOLDER_EXPR.
(find_placeholder): Get starting point from PLIST arg.
(expand_expr, case PLACEHOLDER_EXPR): Initialize find_placeholder arg.
* expr.h (set_mem_align, change_address, adjust_address_1): New decls.
(adjust_address, adjust_address_nv): New macros.
* print-rtl.c (tree.h): New include.
(print_rtx, case MEM): Print all memory attributes.
From-SVN: r46313
* expr.c (store_expr): When converting a CONST_INT for storage
in a SUBREG, convert it to both SUBREG modes before stripping
the SUBREG.
From-SVN: r46081
* alias.c (get_alias_set): Try to replace PLACEHOLDER_EXPR.
Loop through NOPs, placeholders, and components.
Don't go through NOPs if change mode.
(record_alias_subset): Do nothing if SUBSET and SET are the same.
* emit-rtl.c (set_mem_alias_set): Enable check.
* expr.c (find_placeholder): New function.
(expand_expr, case PLACEHOLDER_EXPR): Use it.
(expand_expr, case COMPONENT_EXPR): Always copy OP0 when we need
to modify it and avoid unneeded copies.
* expr.h (expand_expr): Always define.
(find_placeholder): New declaration.
From-SVN: r45931
* expr.c (push_block): Make sane use of STACK_GROWS_DOWNWARD.
(emit_push_insn): Use specified padding direction when
STACK_PUSH_CODE is POST_INC.
From-SVN: r45352
* stmt.c: Don't include insn-codes.h.
(expand_end_case): Machine specific logic moved to expr.c.
No need to worry about __builtin_classify_type.
(check_for_full_enumeration_handling, emit_case_nodes):
Kill #if 0 blocks.
* builtins.o (expand_builtin_classify_type): Split up so code
can be shared with fold_builtin_classify_type.
(type_to_class, fold_builtin_classify_type): New functions.
(fold_builtins): Handle __builtin_classify_type.
* expr.c (do_tablejump): Now static.
(case_values_threshold, try_casesi, try_tablejump): New;
code mostly from stmt.c (expand_end_case).
(expr.h): Update prototypes.
* Makefile.in (stmt.o): Update dependencies.
From-SVN: r45078
* 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
* 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
* expr.c (expand_expr, case COMPONENT_REF): Don't force using bitfield
extraction if no direct load if either EXPAND_CONST_ADDRESS or
EXPAND_INITIALIZER.
From-SVN: r43897
* expr.c (expand_assignment): When have varying-length object,
make MEM a BLKmode.
(expand_expr, case ADDR_EXPR): Use SAVE_EXPR_RTL after putting
SAVE_EXPR stack in case we had a SUBREG.
From-SVN: r43637
* c-common.h (RETURN_NULLIFIED_P): New macro.
* c-semantics.c (genrtl_return_stmt): Check it.
* cp-tree.h (struct cp_language_function): Add x_return_value.
(current_function_return_value): Now a macro.
* decl.c: Don't define it.
(define_label, finish_case_label): Don't clear it.
(init_decl_processing): Don't register it with GC.
* semantics.c (genrtl_finish_function): Don't check it for
no_return_label. Copy the RTL from the return value to
current_function_return_value and walk, calling...
(nullify_returns_r): ...this new fn.
* typeck.c (check_return_expr): Set current_function_return_value.
* expr.c (clear_storage): Set TREE_NOTHROW on the decl for memset.
(emit_block_move): Likewise.
From-SVN: r43445
* expr.c (expand_expr, case ARRAY_REF): Do not replace
an array element with the known initializing value if it has
side-effects.
* toplev.c (rest_of_compilation): Remove dead code before
purge_addressof.
From-SVN: r43120
* expr.c (expand_expr, case ARRAY_REF): Don't fold constant
access if EXPAND_CONST_ADDRESS or EXPAND_INITIALIZER.
(expand_expr, case COMPONENT_REF): Do copy if misaligned even
if EXPAND_CONST_ADDRESS or EXPAND_INITIALIZER.
From-SVN: r42361
* expmed.c (store_bit_field): Truncate CONST_INTs.
(expand_mult_highpart, expand_divmod): Likewise.
* expr.c (convert_modes, store_field): Likewise.
* integrate.c (expand_inline_function): Use promote_mode() to
determine whether to convert_modes() an argument as signed
or unsigned.
* optabs.c (expand_binop): Get CONST_INT operands
sign-extended for their appropriate modes.
* stmt.c (emit_case_nodes): Convert node values to the
appropriate mode.
(expand_end_case): Convert minval and range to the appropriate
mode.
* unroll.c (loop_iterations): Truncate abs_diff to the mode of
the iteration variable.
* varasm.c (immed_double_const): Don't require words to be
narrower than host wide ints to properly sign-extend
CONST_INTs.
From-SVN: r41285
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
* expr.c (emit_move_insn_1): Split push of complex value when
no suitable push instruction exist.
* i386.md (QImode move/add/shift patterns): Use ANY_QI_REG_P
instead of QI_REG_P.
From-SVN: r40454
* print-rtl.c (print_rtx): Cast enums to int for comparison.
* c-decl.c (grokdeclarator): Cast enums to int for comparison and
shifts.
* c-format.c (C_STD_VER): Cast to int for comparisons.
(check_function_format): Cast various enums to int for &.
(maybe_read_dollar_number): Likewise.
(check_format_info): Likewise.
(check_format_info_main): Likewise.
* expr.c (emit_move_insn_1): Cast enums to unsigned int for comparison.
(safe_from_p): Likewise.
* varasm.c (const_hash): Cast enum to int for %.
* emit-rtl.c (init_emit_once): Use int loop variable to work around
pcc enum problems with < and ++ operators.
* regclass.c (init_reg_sets_1): Cast enums for comparison.
(choose_hard_reg_mode): Use unsigned int to iterate over CCmodes.
(regclass_init): Change enum class to int to iterate over reg_classes.
* genrecog.c (merge_trees): Cast enums for comparison.
* rtl.h (GET_CODE): Cast to enum rtx_code.
(PUT_CODE): Cast to ENUM_BITFIELD(rtx_code).
(GET_MODE): Cast to enum machine_mode.
(PUT_MODE): Cast to ENUM_BITFIELD(machine_mode).
(GET_NOTE_INSN_NAME): Cast enum to int.
* tree.h (TREE_CODE): Cast to enum tree_code.
(TREE_SET_CODE): Cast VALUE to ENUM_BITFIELD(tree_code).
* timevar.c (timevar_print): Change loop variable id from enum to
unsigned int.
* fixinc/fixincl.c (VLEVEL): Cast enums in comparison to unsigned int.
* config/i386/i386.md: Use PUT_MODE for mode assignment.
* toplev.c (compile_file): Cast enum DFI to int.
(decode_d_option): Likewise.
From-SVN: r40193
* stmt.c (expand_return): Don't return anything if size is zero.
Delete redundant assignment to BYTES.
* expr.c (move_block_from_reg): Do nothing if NREGS is zero.
From-SVN: r39156
* alias.c (rtx_equal_for_memref_p, case ADDRESSOF): Don't assume
args are REG.
* expr.c (store_constructor): Don't look at MEM_ALIAS_SET unless MEM.
* function.c (assign_parms): Use INTVAL for a CONST_INT.
From-SVN: r39139
* alias.c (alias_sets_conflict_p): New function.
(mems_in_disjoint_alias_sets_p): Use it.
(readonly_fields_p): Moved from expr.c; check for record type.
(objects_must_conflict_p): New function.
* calls.c (expand_call): Use assign_temp as much as possible, use
readonly variant if assigned once, and don't set memory attributes.
(emit_library_call_value_1, store_one_arg): Likewise.
* integrate.c (expand_inline_function): Likewise.
* stmt.c (expand_asm_operands, expand_return): Likewise.
* expr.c (copy_blkmode_from_reg, store_constructor): Likewise.
(store_field, save_noncopied_parts, expand_expr): Likewise.
(expand_expr_unaligned): Likewise.
(readonly_fields_p): Moved to alias.c.
(safe_from_p): Rework handling of SAVE_EXPR.
MEMs ony conflict if alias sets conflict; likewise for INDIRECT_REF.
* function.c (struct temp_slot): Delete field ALIAS_SET; add TYPE.
(assign_stack_for_temp): Use objects_must_confict_p.
Set all memory attributes from type, if specified.
(mark_temp_slot): Mark TYPE field.
* tree.h (alias_sets_conflict_p, readonly_fields_p): New decls.
(objects_must_conflict_p): Likewise.
* stmt.c (expand_decl): Don't use assign_stack_temp in error case.
(add_case_node): No need to copy nodes anymore.
From-SVN: r38559
* expr.h (store_by_pieces): Add prototype.
(can_store_by_pieces): Likewise.
* expr.c (struct store_by_pieces): Renamed from clear_by_pieces.
(can_store_by_pieces): New.
(store_by_pieces): New.
(clear_by_pieces): New.
(clear_by_pieces_1): New.
(store_by_pieces_1): Renamed from clear_by_pieces, handle storing
arbitrary compiler generated constants into memory block.
(store_by_pieces_2): Renamed from clear_by_pieces_1, likewise.
* builtins.c (c_readstr): New.
(builtin_memcpy_read_str): New.
(expand_builtin_memcpy): If src is string constant and
emit_block_move would move it by pieces, compute integer constants
from the string and store it into memory block instead.
(builtin_strncpy_read_str): New.
(expand_builtin_strncpy): If N is not constant zero and c_strlen does
not return INTEGER_CST, don't optimize.
If N is larger than strlen(src) + 1, try to copy the string
including padding with store_by_pieces.
(expand_builtin_strcmp): If both arguments have side effects, don't
optimize.
(expand_builtin_fputs): If STR has side effects, don't optimize.
* gcc.c-torture/execute/string-opt-5.c: Add some strcmp and strncpy
tests.
* gcc.c-torture/execute/string-opt-6.c: New test.
From-SVN: r37851
* expr.c (do_compare_and_jump): If op0 was replaced by promoted
integer constant, use type of op1 for comparison.
* g++.old-deja/g++.other/inline17.C: New test.
From-SVN: r37605
* varasm.c (struct deferred_string): New structure.
(const_str_htab): New variable.
(STRHASH): New macro.
(mark_const_str_htab_1, mark_const_str_htab, const_str_htab_hash,
constr_str_htab_eq, const_str_htab_del): New functions.
(output_constant_def): Add DEFER argument, defer string
constants until mark_constant_pool time if requested.
(mark_constant_pool): Walk the insn chain even if const_str_htab is
not empty.
(mark_constants): If a SYMBOL_REF for deferred string is found,
output it and remove from hash table.
(output_addressed_constants): Set DEFER to 0 in call to
output_constant_def.
* rtl.h (STRING_POOL_ADDRESS_P): Define.
(output_constant_def): Adjust prototype.
* expr.c (expand_expr): Set DEFER to 1 in call to output_constant_def.
* gcc.c-torture/execute/20000801-4.c: Make sure the second string is
output.
From-SVN: r37459
* tree.c (make_node, case 't'): Set alignment to that of
char_type_node.
* expr.c (move_by_pieces_ninsns): Abort if some length remains.
From-SVN: r37071
* expr.c (expand_expr, case SAVE_EXPR): Set RTX_UNCHANGING_P on
returned MEM.
(expand_expr_unaligned, case ARRAY_REF): Check that index is
a constant before comparing it; use tree_low_cst.
* tree.c (save_expr): Set TREE_READONLY.
(substitute_expr): Return inside of NON_LVALUE_EXPR.
(build, build1): Set TREE_READONLY if all operands are.
(build_index_type): If upper bound is a negative number, lower
bound is zero and sizetype is unsigned, use upper bound of one and
lower of zero.
From-SVN: r36979
