diff options
Diffstat (limited to 'gcc/compare-elim.c')
| -rw-r--r-- | gcc/compare-elim.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/compare-elim.c b/gcc/compare-elim.c index 69b1de7..b5ce993 100644 --- a/gcc/compare-elim.c +++ b/gcc/compare-elim.c @@ -526,6 +526,7 @@ maybe_select_cc_mode (struct comparison *cmp, rtx a ATTRIBUTE_UNUSED, static rtx equivalent_reg_at_start (rtx reg, rtx_insn *end, rtx_insn *start) { + machine_mode orig_mode = GET_MODE (reg); rtx_insn *bb_head = BB_HEAD (BLOCK_FOR_INSN (end)); for (rtx_insn *insn = PREV_INSN (end); @@ -572,6 +573,9 @@ equivalent_reg_at_start (rtx reg, rtx_insn *end, rtx_insn *start) return NULL_RTX; } + if (GET_MODE (reg) != orig_mode) + return NULL_RTX; + return reg; } |