1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/cse.c b/gcc/cse.c
index 91cb108..bab0908 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))
 	    {