diff options
Diffstat (limited to 'gcc/caller-save.c')
| -rw-r--r-- | gcc/caller-save.c | 31 |
1 files changed, 10 insertions, 21 deletions
diff --git a/gcc/caller-save.c b/gcc/caller-save.c index f05f327..51b9d5a 100644 --- a/gcc/caller-save.c +++ b/gcc/caller-save.c @@ -367,31 +367,20 @@ save_call_clobbered_regs (insn_mode) saved because we restore all of them before the end of the basic block. */ -#ifdef HARD_REG_SET - hard_regs_live = *regs_live; -#else - COPY_HARD_REG_SET (hard_regs_live, regs_live); -#endif - + REG_SET_TO_HARD_REG_SET (hard_regs_live, regs_live); CLEAR_HARD_REG_SET (hard_regs_saved); CLEAR_HARD_REG_SET (hard_regs_need_restore); n_regs_saved = 0; - for (offset = 0, i = 0; offset < regset_size; offset++) - { - if (regs_live[offset] == 0) - i += REGSET_ELT_BITS; - else - for (bit = 1; bit && i < max_regno; bit <<= 1, i++) - if ((regs_live[offset] & bit) - && (regno = reg_renumber[i]) >= 0) - for (j = regno; - j < regno + HARD_REGNO_NREGS (regno, - PSEUDO_REGNO_MODE (i)); - j++) - SET_HARD_REG_BIT (hard_regs_live, j); - - } + EXECUTE_IF_SET_IN_REG_SET (regs_live, 0, i, + { + if ((regno = reg_renumber[i]) >= 0) + for (j = regno; + j < regno + HARD_REGNO_NREGS (regno, + PSEUDO_REGNO_MODE (i)); + j++) + SET_HARD_REG_BIT (hard_regs_live, j); + }); /* Now scan the insns in the block, keeping track of what hard regs are live as we go. When we see a call, save the live |