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| author | Bernd Schmidt <crux@pool.informatik.rwth-aachen.de> | 1998-11-19 22:47:55 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1998-11-19 15:47:55 -0700 |
| commit | c795bca92313e05fc873321038456afc445b9557 (patch) | |
| tree | 310800560c2d56240298d18712cd2147a03cd10c /gcc/explow.c | |
| parent | 9f5a2691a147626d10fba7bc366a059678c606e9 (diff) | |
| download | gcc-c795bca92313e05fc873321038456afc445b9557.zip gcc-c795bca92313e05fc873321038456afc445b9557.tar.gz gcc-c795bca92313e05fc873321038456afc445b9557.tar.bz2 | |
expr.c (STACK_BYTES): Delete unused macro.
* expr.c (STACK_BYTES): Delete unused macro.
* calls.c: Provide default for PREFERRED_STACK_BOUNDARY.
(STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
(expand_call): Likewise.
(emit_library_call): Likewise.
(emit_library_call_value): Likewise.
* function.c: Provide default for PREFERRED_STACK_BOUNDARY.
(STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
* explow.c: Provide default for PREFERRED_STACK_BOUNDARY.
(round_push): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
(allocate_dynamic_stack_space): Likewise.
* tm.texi (PREFERRED_STACK_BOUNDARY): Document new macro.
(STACK_BOUNDARY): Update description to reflect the new situation.
From-SVN: r23730
Diffstat (limited to 'gcc/explow.c')
| -rw-r--r-- | gcc/explow.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/gcc/explow.c b/gcc/explow.c index 95fb561..0dbf002 100644 --- a/gcc/explow.c +++ b/gcc/explow.c @@ -31,6 +31,10 @@ Boston, MA 02111-1307, USA. */ #include "insn-flags.h" #include "insn-codes.h" +#if !defined PREFERRED_STACK_BOUNDARY && defined STACK_BOUNDARY +#define PREFERRED_STACK_BOUNDARY STACK_BOUNDARY +#endif + static rtx break_out_memory_refs PROTO((rtx)); static void emit_stack_probe PROTO((rtx)); /* Return an rtx for the sum of X and the integer C. @@ -830,8 +834,8 @@ rtx round_push (size) rtx size; { -#ifdef STACK_BOUNDARY - int align = STACK_BOUNDARY / BITS_PER_UNIT; +#ifdef PREFERRED_STACK_BOUNDARY + int align = PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT; if (align == 1) return size; if (GET_CODE (size) == CONST_INT) @@ -851,7 +855,7 @@ round_push (size) NULL_RTX, 1); size = expand_mult (Pmode, size, GEN_INT (align), NULL_RTX, 1); } -#endif /* STACK_BOUNDARY */ +#endif /* PREFERRED_STACK_BOUNDARY */ return size; } @@ -1124,10 +1128,10 @@ allocate_dynamic_stack_space (size, target, known_align) If we have to align, we must leave space in SIZE for the hole that might result from the alignment operation. */ -#if defined (STACK_DYNAMIC_OFFSET) || defined (STACK_POINTER_OFFSET) || ! defined (STACK_BOUNDARY) +#if defined (STACK_DYNAMIC_OFFSET) || defined (STACK_POINTER_OFFSET) || ! defined (PREFERRED_STACK_BOUNDARY) #define MUST_ALIGN 1 #else -#define MUST_ALIGN (STACK_BOUNDARY < BIGGEST_ALIGNMENT) +#define MUST_ALIGN (PREFERRED_STACK_BOUNDARY < BIGGEST_ALIGNMENT) #endif if (MUST_ALIGN) @@ -1154,12 +1158,12 @@ allocate_dynamic_stack_space (size, target, known_align) if (!current_function_calls_setjmp) { - int align = STACK_BOUNDARY / BITS_PER_UNIT; + int align = PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT; /* See optimize_save_area_alloca to understand what is being set up here. */ -#if !defined(STACK_BOUNDARY) || !defined(MUST_ALIGN) || (STACK_BOUNDARY != BIGGEST_ALIGNMENT) +#if !defined(PREFERRED_STACK_BOUNDARY) || !defined(MUST_ALIGN) || (PREFERRED_STACK_BOUNDARY != BIGGEST_ALIGNMENT) /* If anyone creates a target with these characteristics, let them know that our optimization cannot work correctly in such a case. */ abort(); @@ -1209,11 +1213,11 @@ allocate_dynamic_stack_space (size, target, known_align) way of knowing which systems have this problem. So we avoid even momentarily mis-aligning the stack. */ -#ifdef STACK_BOUNDARY +#ifdef PREFERRED_STACK_BOUNDARY /* If we added a variable amount to SIZE, we can no longer assume it is aligned. */ #if !defined (SETJMP_VIA_SAVE_AREA) - if (MUST_ALIGN || known_align % STACK_BOUNDARY != 0) + if (MUST_ALIGN || known_align % PREFERRED_STACK_BOUNDARY != 0) #endif size = round_push (size); #endif |