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| author | Jan Hubicka <jh@suse.cz> | 2000-03-29 13:10:44 +0000 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2000-03-29 13:10:44 +0000 |
| commit | f73ad30e011e5fa64e634e576bd6297b667f9364 (patch) | |
| tree | f907c433c28df15d0d9341afb54624130db44220 /gcc/combine.c | |
| parent | db8cb48e64684efc2956b1229e9b1fbac558229a (diff) | |
| download | gcc-f73ad30e011e5fa64e634e576bd6297b667f9364.zip gcc-f73ad30e011e5fa64e634e576bd6297b667f9364.tar.gz gcc-f73ad30e011e5fa64e634e576bd6297b667f9364.tar.bz2 | |
Convert ACCUMULATE_OUTGOING_ARGS to an expression.
* calls.c (PUSH_ARGS_REVERSED) Change to expression.
(ACCUMULATE_OUTGOING_ARGS, PUSH_ARGS): Provide default value.
(struct arg_data): Remove #ifdef ACCUMULATE_OUTGOING_ARGS.
(save_fixed_argument_area, restore_fixed_argument_area):
conditionize by #ifdef REG_PARM_STACK_SPACE only.
(emit_call): Change #ifdefs on ACCUMULATE_OUTGOING_ARGS
to conditions, handle RETURN_POPS_ARGS on ACCUMULATE_OUTGOING_ARGS.
(precompute_register_parameters): Avoid #ifdefs on
ACCUMULATE_OUTGOING_ARGS and PUSH_ARGS_REVERSED.
(stire_one_args): Likewise.
(expand_call): Likewise; conditionize PUSH_ROUNDING code by PUSH_ARGS.
(emit_library_call_value_1): Likewise.
(compute_argument_block_size): Align to STACK_BOUNDARY only for
ACCUMULATE_OUTGOING_ARGS.
* combine.c (ACCUMULATE_OUTGOING_ARGS, PUSH_ARGS): Provide default
value.
(nonzero_bits): Conditionize PUSH_ROUNDING code by USE_PUSH.
(use_crosses_set_p): Likewise.
* all targets (ACCUMULATE_OUTGOING_ARGS define): Change to
#define ACCUMULATE_OUTGOING_ARGS 1.
* i386.c (ix86_compute_frame_size): Handle ACCUMULATE_OUTGOING_ARGS
frames.
* i386.h (MASK_NO_PUSH_ARGS, MASK_ACCUMULATE_OUTGOING_ARGS): New
constants.
(TARGET_PUSH_ARGS, TARGET_ACCUMULATE_OUTGOING_ARGS): New macros.
(TARGET_SWITCHES): Add push-args, no-push-args,
accumulate-outgoing-args and no-accumulate-outgoing-args.
(ACCUMULATE_OUTGOING_ARGS, PUSH_ARGS): New macro.
* expr.c (ACCUMULATE_OUTGONG_ARGS, PUSH_ARGS): Provide default.
(push_block): Avoid ifdefs on ACCUMULATE_OUTGONG_ARGS
and PUSH_ROUNDING.
(emit_push_insn): Likewise.
* final.c (ACCUMULATE_OUTGOING_ARGS): Provide default.
(final_scan_insn): Avoid ifdefs on ACCUMULATE_OUTGOING_ARGS.
* function.c (ACCUMULATE_OUTGOING_ARGS): Provide default.
(STACK_DYNAMIC_OFFSET): Define correctly for both
ACCUMULATE_OUTGOING_ARGS and normal mode.
* invoke.texi (-mpush_args, -maccumulate-outgoing-args): Document.
* tm.texi (PUSH_ARGS): Document.
(ACCUMULATE_OUTGOING_ARGS, PUSH_ROUNDING): Update documentation.
From-SVN: r32803
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 614a95d..2d46a69 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -93,6 +93,20 @@ Boston, MA 02111-1307, USA. */ #include "recog.h" #include "real.h" #include "toplev.h" +#include "defaults.h" + +#ifndef ACCUMULATE_OUTGOING_ARGS +#define ACCUMULATE_OUTGOING_ARGS 0 +#endif + +/* Supply a default definition for PUSH_ARGS. */ +#ifndef PUSH_ARGS +#ifdef PUSH_ROUNDING +#define PUSH_ARGS !ACCUMULATE_OUTGOING_ARGS +#else +#define PUSH_ARGS 0 +#endif +#endif /* It is not safe to use ordinary gen_lowpart in combine. Use gen_lowpart_for_combine instead. See comments there. */ @@ -7883,7 +7897,7 @@ nonzero_bits (x, mode) int sp_alignment = STACK_BOUNDARY / BITS_PER_UNIT; #ifdef PUSH_ROUNDING - if (REGNO (x) == STACK_POINTER_REGNUM) + if (REGNO (x) == STACK_POINTER_REGNUM && PUSH_ARGS) sp_alignment = MIN (PUSH_ROUNDING (1), sp_alignment); #endif @@ -11422,7 +11436,7 @@ use_crosses_set_p (x, from_cuid) #ifdef PUSH_ROUNDING /* Don't allow uses of the stack pointer to be moved, because we don't know whether the move crosses a push insn. */ - if (regno == STACK_POINTER_REGNUM) + if (regno == STACK_POINTER_REGNUM && PUSH_ARGS) return 1; #endif for (; regno < endreg; regno++) |