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Diffstat (limited to 'gcc/regmove.c')
| -rw-r--r-- | gcc/regmove.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/regmove.c b/gcc/regmove.c index 55a31dc612e..1a1fffe0975 100644 --- a/gcc/regmove.c +++ b/gcc/regmove.c @@ -664,6 +664,7 @@ optimize_reg_copy_3 (insn, dest, src) if (src_no < FIRST_PSEUDO_REGISTER || dst_no < FIRST_PSEUDO_REGISTER || ! find_reg_note (insn, REG_DEAD, src_reg) + || REG_N_DEATHS (src_no) != 1 || REG_N_SETS (src_no) != 1) return; for (p = PREV_INSN (insn); p && ! reg_set_p (src_reg, p); p = PREV_INSN (p)) |