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Diffstat (limited to 'gcc/config/sparc/sparc.h')
| -rw-r--r-- | gcc/config/sparc/sparc.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/config/sparc/sparc.h b/gcc/config/sparc/sparc.h index e765973..89f5e07 100644 --- a/gcc/config/sparc/sparc.h +++ b/gcc/config/sparc/sparc.h @@ -1570,7 +1570,12 @@ extern const char leaf_reg_remap[]; {{ FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM} } -#define CAN_ELIMINATE(FROM, TO) 1 +/* The way this is structured, we can't eliminate SFP in favor of SP + if the frame pointer is required: we want to use the SFP->HFP elimination + in that case. But the test in update_eliminables doesn't know we are + assuming below that we only do the former elimination. */ +#define CAN_ELIMINATE(FROM, TO) \ + ((TO) == HARD_FRAME_POINTER_REGNUM || !FRAME_POINTER_REQUIRED) #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ do { \ |