diff options
Diffstat (limited to 'gcc/regs.h')
| -rw-r--r-- | gcc/regs.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/regs.h b/gcc/regs.h index 17293d68497..c26528d0574 100644 --- a/gcc/regs.h +++ b/gcc/regs.h @@ -176,6 +176,12 @@ extern int caller_save_needed; #define CALLER_SAVE_PROFITABLE(REFS, CALLS) (4 * (CALLS) < (REFS)) #endif +/* On most machines a register class is likely to be spilled if it + only has one register. */ +#ifndef CLASS_LIKELY_SPILLED_P +#define CLASS_LIKELY_SPILLED_P(CLASS) (reg_class_size[(int) (CLASS)] == 1) +#endif + /* Allocated in local_alloc. */ /* A list of SCRATCH rtl allocated by local-alloc. */ |