diff options
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++) |