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-rw-r--r--gcc/cse.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/cse.c b/gcc/cse.c
index 91cb108e94c..bab0908c984 100644
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -4483,7 +4483,8 @@ cse_insn (rtx insn)
enum machine_mode wider_mode;
for (wider_mode = GET_MODE_WIDER_MODE (mode);
- GET_MODE_BITSIZE (wider_mode) <= BITS_PER_WORD
+ wider_mode != VOIDmode
+ && GET_MODE_BITSIZE (wider_mode) <= BITS_PER_WORD
&& src_related == 0;
wider_mode = GET_MODE_WIDER_MODE (wider_mode))
{