* emit-rtl.c (set_mem_attributes_minus_bitpos): Don't kill
previous MEM_VOLATILE in REF.
* function.c (fixup_var_refs): Save volatile_ok and set to 1.
* expr.c (emit_block_move_via_movstr): Save and restore volatile_ok.
From-SVN: r77718
PR target/9348
* expr.c (expand_expr_real) <MULT_EXPR>: When performing widening
multiplies with a multiplication of the wrong signedness, its the
signedness of the multiplication that we've performed that needs to
be passed to expand_mult_highpart_adjust. Avoid emitting a nop-move
if expand_mult_highpart_adjust places the result in target.
* gcc.c-torture/execute/multdi-1.c: New test case.
From-SVN: r77192
PR optimization/13424
* expr.c (store_constructor): Revert 2003-12-03 change.
* emit-rtl.c (change_address): Check also if MEM_ATTRS is set as
expected before returning early. Avoid sharing RTL if they
need to be changed.
* config/i386/i386.c (ix86_expand_movstr): Rework rep_mov and strmov
handling so that memory attributes are preserved. Don't call
ix86_set_move_mem_attrs.
(ix86_set_move_mem_attrs_1, ix86_set_move_mem_attrs): Removed.
(ix86_expand_clrstr): Rename src argument to
dst. Rework rep_stos and strset handling so that memory attributes
are preserved.
(ix86_expand_strlen): Pass src argument to
ix86_expand_strlensi_unroll_1. Rework strlenqi_1 handling so that
memory attributes are preserved.
(ix86_expand_strlensi_unroll_1): Add src argument. Use
change_address instead of gen_rtx_MEM.
* config/i386/i386.md (strmov, strmov_singleop, rep_mov): New
expanders.
(strmovdi_rex64, strmovsi, strmovsi_rex64, strmovhi, strmovhi_rex64,
strmovqi, strmovqi_rex64): Remove.
(rep_mov*, strmov*): Prefix insn names with *.
(strset, strset_singleop, rep_stos): New expanders.
(strsetdi_rex64, strsetsi, strsetsi_rex64, strsethi, strsethi_rex64,
strsetqi, strsetqi_rex64): Remove.
(rep_stos*, strset*): Prefix insn names with *.
(rep_stosqi_rex64): Likewise. Fix mode of dirflag reg from DImode
to SImode.
(cmpstrsi): Rework cmpstrqi_1 handling so that memory attributes
are preserved.
(cmpstrqi_nz_1, cmpstrqi_nz_rex_1, cmpstrqi_1, cmpstrqi_rex_1):
Prefix insn names with *.
(cmpstrqi_nz_1, cmpstrqi_1): New expanders.
(strlenqi_1, strlenqi_rex_1): Prefix insn names with *.
(strlenqi_1): New expander.
* config/i386/i386.h (ix86_set_move_mem_attrs): Remove prototype.
From-SVN: r76852
* expr.h (expand_expr): Make it a macro, not a function.
(expand_expr_real): New function.
* expr.c (store_expr): Adjust logic for deciding whether or not to
copy the value returned by expand_expr.
(expand_expr): Rename to ...
(expand_expr_real): ... this. Add alt_rtl parameter. Adjust
calls to language hooks.
* c-common.h (c_expand_expr): Adjust prototype.
* c-common.c (c_expand_expr): Add alt_rtl parameter.
* langhooks-def.h (lhd_expand_expr): Change prototype.
* langhooks.c (lhd_expand_expr): Add all_rtl parameter.
* langhooks.h (lang_hooks): Change type of expand_expr.
* stmt.c (stmt_status): Add x_last_expr_alt_rtl.
(last_expr_alt_rtl): Likewise.
(expand_expr_stmt_value): Set last_expr_alt_rtl.
(clear_last_expr): Clear it.
(expand_end_stmt_expr): Set RTL_EXPR_ATL_RTL.
(expand_end_bindings): Save and restor last_expr_alt_rtl.
* tree.def (RTL_EXPR): Give it an additional operand.
* tree.h (RTL_EXPR_ALT_RTL): New macro.
* misc.c (gnat_expand_expr): Add alt_rtl parameter.
* cp-tree.h (cxx_expand_expr): Change prototype.
* expr.c (cxx_expand_expr): Add alt_rtl parameter.
* java-tree.h (java_expand_expr): Change prototype.
* expr.c (java_expand_expr): Add alt_rtl parameter.
From-SVN: r75594
* c-common.c (c_expand_expr): Remove code to return a value
different from that returned by expand_expr.
* expr.c (store_expr): Use the validity of a target MEM, rather
than checking DECL_RTL (exp), to figure out if a copy is
required.
From-SVN: r75273
PR middle-end/7847
* expr.c (expand_expr) [normal_inner_ref]: When 'offset' is non-zero,
do not recheck that 'op0' is a MEM. Move comment. When testing for
unaligned objects, take also into account the alignment of 'op0' and
'mode1' if 'op0' is a MEM.
From-SVN: r74092
2003-11-20 Fariborz Jahanian <fjahanian@apple.com>
David Edelsohn <edelsohn@gnu.org>
* calls.c (expand_call): Allocate new temp in pass1.
(store_one_arg): If PARALLEL, calculate excess using mode size of
rtvec elt.
* expr.c (emit_push_insn): If PARALLEL, calculate offset using
mode size of rtvec elt.
* function.c (assign_parms): Use parm in register, if available.
Co-Authored-By: David Edelsohn <edelsohn@gnu.org>
From-SVN: r73775
* Makefile.in (expr.o): Depend on $(TARGET_H).
* target.h (return_in_msb): New target hook.
* target-def.h (TARGET_RETURN_IN_MSB): New macro.
(TARGET_CALLS): Include it.
* calls.c (shift_returned_value): New function.
(expand_call): Use it.
* expr.c: Include target.h.
(copy_blkmode_from_reg): Check targetm.calls.return_in_msb when
deciding what padding is needed. Change the name of the local
padding variable from big_endian_correction to padding_correction.
* stmt.c (shift_return_value): New function.
(expand_return): Use it. Adjust memory->register copy in the same
way as copy_blkmode_from_reg. Only change the return register's
mode if it was originally BLKmode.
* doc/tm.texi (TARGET_RETURN_IN_MSB): Document.
* config/mips/mips.c (TARGET_RETURN_IN_MSB): Define.
(mips_fpr_return_fields): New, split out from mips_function_value.
(mips_return_in_msb, mips_return_fpr_pair): New functions.
(mips_function_value): Rework to use the functions above.
* config/mips/irix6-libc-compat.c: Delete.
* config/mips/t-iris6 (LIB2FUNCS_STATIC_EXTRA): Undefine.
From-SVN: r73652
PR optimization/12926
* expr.c (expand_assignment) [COMPONENT_REF]: Don't put
the UNCHANGING_RTX_P flag on memory references to read-only
components that are not addressable.
From-SVN: r73542
* expr.c (block_move_libcall_safe_for_call_parm): Clean up,
and add case for machines where outgoing register parameters
get stack space.
From-SVN: r72474
* expr.c (expand_expr <PLUS_EXPR>): Let expand_operands call
safe_from_p for us, once it chooses an evaluation order.
(expand_expr <MULT_EXPR>): Likewise.
(expand_expr <MIN_EXPR> <MAX_EXPR>): Likewise. If expand_operands
places the second operand in "target", swap the operands.
(do_store_flag): Let expand_operands call safe_from_p for us.
* gcc.c-torture/execute/20031011-1.c: New testcase.
From-SVN: r72376
* stor-layout.c (compute_record_mode): Don't force BLKmode if
field is zero-length BLKmode.
* expr.c (expand_expr, case COMPONENT_REF): Handle case of BLKmode
zero-size references.
From-SVN: r72311
* toplev.c (flag_evaluation_order): New global variable.
* flags.h (flag_evaluation_order): Prototype here.
* expr.c (expand_operands): If we need to preserve observable
evaluation order, protect exp1 from clobbering exp0's result.
* java/lang.c (java_init_options): Set flag_evaluation_order.
* java/expr.c (force_evaluation_order): Don't attempt to force
evaluation order of binary operations using save_expr.
* java/parse.y (java_complete_lhs): No longer need to call
force_evaluation_order when constructing binary operators.
From-SVN: r71873
* expr.c (emit_move_insn_1): If there is no move pattern for the
original mode, try using a pattern for the corresponding integer mode.
From-SVN: r71816
* c-common.c (handle_warn_unused_result_attribute): New function.
(c_common_attribute_table): Add warn_unused_result.
(c_expand_expr): Issue warning when result of inlined function
with warn_unused_result attribute is ignored.
* calls.c (expand_call): Issue warning when result of function
with warn_unused_result attribute is ignored.
* c-common.h (STMT_EXPR_WARN_UNUSED_RESULT): Define.
* expr.c (expr_wfl_stack): Define.
(expand_expr) <case EXPR_WITH_FILE_LOCATION>: If ignore,
pass const0_rtx as target. Chain locations into expr_wfl_stack.
* tree-inline.c (expand_call_inline): Set STMT_EXPR_WARN_UNUSED_RESULT
bit if inlined function has warn_unused_result attribute.
* input.h (expr_wfl_stack): Declare.
* doc/extend.texi: Document warn_unused_result attribute.
* gcc.dg/attr-warn-unused-result.c: New test.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r71424
* expr.c (expand_operands): New function to expand an operand pair.
(expand_expr): Call expand_operands whenever we need to expand both
operands of a binary operator.
(do_store_flag): Likewise for operands of comparison operations.
From-SVN: r71179
* targhooks.c: New file.
* targhooks.h: New file.
* Makefile.in: Add targhooks.o support.
(function.o): Depend on$(TARGET_H).
(stmt.o): Likewise.
(combine.o): Depend on $(TREE_H) and $(TARGET_H).
* builtins.c (apply_args_size, expand_builtin_apply_args_1,
expand_builtin_apply): Convert to calls.struct_value_rtx hook.
(expand_builtin_saveregs): Convert to
calls.expand_builtin_saveregs hook.
* c-decl.c (start_decl): Handle new calls.promote_prototypes hook
here, instead of ...
(get_parm_info) ... here.
(store_parm_decls_oldstyle): Convert to calls.promote_prototypes
hook.
(finish_function): Handle calls.promote_prototypes hook here too.
* c-typeck.c (convert_arguments): Convert to
calls.promote_prototypes hook.
(c_convert_parm_for_inlining): Likewise.
* calls.c (initialize_argument_information): Convert to
calls.promote_function_args hook.
(expand_call): Convert to calls.struct_value_rtx,
calls.strict_argument_naming,
calls.pretend_outgoing_varargs_named, and
calls.promote_function_return hooks. Pass fndecl to
aggregate_value_p. Initialize CUMULATIVE_ARGS before calling
hooks, so they can use that.
(emit_library_call_value_1): Likewise.
* combine.c (setup_incoming_promotions): Convert to
calls.promote_function_args hook.
* emit-rtl.c: Convert to calls.struct_value_rtx hook.
* expr.c (expand_assignment): Pass call to aggregate_value_p.
(expand_expr): Likewise.
* expr.h: Remove support for SETUP_INCOMING_VARARGS,
STRICT_ARGUMENT_NAMING, PRETEND_OUTGOING_VARARGS_NAMED,
RETURN_IN_MEMORY macro defaults.
* final.c (profile_function): Convert to calls.struct_value_rtx
hook.
* function.c (aggregate_value_p): Accept function type tree as
second parameter; try to deduce fntype from it. Convert to
calls.return_in_memory hook.
(assign_parms): Convert to calls.setup_incoming_varargs,
calls.strict_argument_naming, calls.promote_function_args,
calls.pretend_outgoing_varargs_named hooks. Pass fndecl to
aggregate_value_p.
(expand_function_start): Likewise. Convert to
calls.struct_value_rtx hook.
(expand_function_end): Convert to calls.promote_function_return hook.
(allocate_struct_function): Pass fndecl to aggregate_value_p.
* hard-reg-set.h: Update comments to new hook names.
* integrate.c (expand_inline_function): Pass fndecl to aggregate_value_p.
* reg-stack.c (stack_result): Likewise.
* rtl.h (struct_value_rtx, struct_value_incoming_rtx): Delete.
* stmt.c (expand_value_return): Convert to
calls.promote_function_return hook.
* target-def.h: Add TARGET_PROMOTE_FUNCTION_ARGS,
TARGET_PROMOTE_FUNCTION_RETURN, TARGET_PROMOTE_PROTOTYPES,
TARGET_STRUCT_VALUE_RTX, TARGET_RETURN_IN_MEMORY,
TARGET_EXPAND_BUILTIN_SAVEREGS, TARGET_SETUP_INCOMING_VARARGS,
TARGET_STRICT_ARGUMENT_NAMING,
TARGET_PRETEND_OUTGOING_VARARGS_NAMED, and TARGET_CALLS.
* target.h: Likewise.
* tree.h (aggregate_value_p): Also takes a tree to deduce function
attributes from (for target hooks).
* doc/tm.texi (PROMOTE_FUNCTION_ARGS, PROMOTE_FUNCTION_RETURN,
PROMOTE_PROTOTYPES, RETURN_IN_MEMORY, STRUCT_VALUE_REGNUM,
STRUCT_VALUE, STRUCT_VALUE_INCOMING_REGNUM, STRUCT_VALUE_INCOMING,
EXPAND_BUILTIN_SAVEREGS, SETUP_INCOMING_VARARGS,
STRICT_ARGUMENT_NAMING, PRETEND_OUTGOING_VARARGS_NAMED): Convert
to hooks.
* config/alpha/alpha.c (alpha_output_mi_thunk_osf): Pass function
to aggregate_value_p.
* config/arm/arm.c (arm_init_cumulative_args,
arm_output_mi_thunk): Likewise.
* config/i386/i386.c (ix86_return_pops_args, x86_this_parameter):
Likewise.
* config/mips/mips.c (mips_save_reg_p, mips_expand_prologue,
mips_can_use_return_insn): Likewise.
* config/rs6000/rs6000.c (rs6000_output_mi_thunk): Likewise.
* config/s390/s390.c (s390_output_mi_thunk): Likewise.
* config/sparc/sparc.c (sparc_output_mi_thunk): Pass function to
aggregate_value_p.
* config/story16/stormy16.c (xstormy16_asm_output_mi_thunk): Pass
function to aggregate_value_p.
* objc/objc-act.c (generate_struct_by_value_array): Pass NULL to
aggregate_value_p.
* config/sh/sh-protos.h (sh_builtin_saveregs): Remove.
(sh_attr_renesas_p, sh_cfun_attr_renesas_p, sh_function_arg,
sh_function_arg_advance, sh_pass_in_reg_p): New. * config/sh/sh.c
(sh_handle_renesas_attribute, sh_promote_prototypes,
sh_struct_value_rtx, sh_return_in_memory, sh_builtin_saveregs,
sh_setup_incoming_varargs, sh_strict_argument_naming,
sh_pretend_outgoing_varargs_named): New decls.
(targetm): Add new hooks.
(calc_live_regs): Save MACL and MACH if the function has the
renesas attribute.
(sh_expand_prologue): Support renesas attribute.
(sh_builtin_saveregs): Make static.
(sh_build_va_list): Support renesas attribute.
(sh_va_start): Likewise.
(sh_va_arg): Likewise.
(sh_promote_prototypes): New.
(sh_function_arg): New, moved from sh.h. Support renesas
attribute.
(sh_function_arg_advance): Likewise.
(sh_return_in_memory): Likewise.
(sh_strict_argument_naming): Likewise.
(sh_pretend_outgoing_varargs_named): Likewise.
(sh_struct_value_rtx): New.
(sh_attribute): Add renesas attribute.
(sh_handle_renesas_attribute): New.
(sh_attr_renesas_p, sh_cfun_attr_renesas_p): New.
(sh_ms_bitfield_layout_p): Support renesas attribute also.
(sh_output_mi_thunk): Pass function to aggregate_value_p. *
config/sh/sh.h (TARGET_SWITCHES): Add -mrenesas as an alias for
-mhitachi.
(STRUCT_VALUE_REGNUM, STRUCT_VALUE, RETURN_IN_MEMORY): Moved to
target hooks.
(sh_args): Add renesas_abi flag.
(INIT_CUMULATIVE_ARGS): Set it. Pass fndecl to aggregate_value_p.
(FUNCTION_ARG_ADVANCE, FUNCTION_ARG): Move to sh.c.
(PASS_IN_REG_P): Support renesas attribute. Pass DF and TF on the
stack for the renesas abi.
(STRICT_ARGUMENT_NAMING, PRETEND_OUTGOING_VARARGS_NAMED,
SETUP_INCOMING_VARARGS, EXPAND_BUILTIN_SAVEREGS,
PROMOTE_PROTOTYPES): Moved to sh.c. * config/sh/sh.md (call): Set
call cookie to indicate renesas calls.
* decl.c (finish_function): Pass fndecl to aggregate_value_p.
* misc.c (default_pass_by_ref): Convert to calls.return_in_memory
hook.
From-SVN: r71048
* expr.c (expand_expr): The code following both_summands performs
the same task as simplify_gen_binary. Replace all gotos to
both_summands with a call to simplify_gen_binary and delete the
now unused label.
From-SVN: r71006
* expr.c (expand_expr): If an ABS_EXPR has a complex type, abort.
* c-typeck.c (build_unary_op): COMPLEX_TYPE is not a valid
typecode for an ABS_EXPR.
* doc/c-tree.texi: Document ABS_EXPR.
From-SVN: r70349
* Makefile.in (bubblestrap): Don't require a previous full
bootstrap.
* expr.c (mostly_zeros_p): No longer static.
* tree.h: Declare it.
* stmt.c (resolve_asm_operand_names): Don't copy the pattern
unless we need to do substitutions.
From-SVN: r70031
* expr.c (emit_block_move): Don't move anything if size is const 0.
(clear_storage): Test against const0_rtx instead of comparing INTVAL
against 0.
From-SVN: r69441
* doc/tm.texi (BLOCK_REG_PADDING): Describe.
* expr.h (struct locate_and_pad_arg_data): Add where_pad.
(emit_group_load, emit_group_store): Adjust declarations.
Remove most occurrences of #ifdef TREE_CODE.
* expr.c (emit_group_load): Add "type" param, and use
BLOCK_REG_PADDING to determine need for a shift. Optimize non-
aligned accesses if !SLOW_UNALIGNED_ACCESS.
(emit_group_store): Likewise.
(emit_push_insn, expand_assignment, store_expr, expand_expr): Adjust
emit_group_load and emit_group_store calls.
* calls.c (store_unaligned_arguments_into_pseudos): Tidy. Use
BLOCK_REG_PADDING to determine whether we need endian_correction.
(load_register_parameters): Localize vars. Handle shifting of
small values to the correct end of regs. Adjust emit_group_load
call.
(expand_call, emit_library_call_value_1): Adjust emit_group_load
and emit_group_store calls.
* function.c (assign_parms): Set mem alignment for stack slots.
Adjust emit_group_store call. Store values at the "wrong" end
of regs to the stack. Use BLOCK_REG_PADDING.
(locate_and_pad_parm): Save where_pad.
(expand_function_end): Adjust emit_group_load call.
* stmt.c (expand_value_return): Adjust emit_group_load call.
* Makefile.in (calls.o): Depend on $(OPTABS_H).
* config/rs6000/linux64.h (TARGET_LITTLE_ENDIAN): Redefine as 0.
(AGGREGATE_PADDING_FIXED, AGGREGATES_PAD_UPWARD_ALWAYS): Define.
(MUST_PASS_IN_STACK): Define.
(BLOCK_REG_PADDING): Define.
* config/rs6000/rs6000.h (struct rs6000_args): Remove orig_nargs.
(PAD_VARARGS_DOWN): Define in terms of FUNCTION_ARG_PADDING.
* config/rs6000/rs6000.c (init_cumulative_args): Don't set orig_nargs.
(function_arg_padding): !AGGREGATE_PADDING_FIXED compatibility code.
Act on AGGREGATES_PAD_UPWARD_ALWAYS.
From-SVN: r69318
* 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
