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-rw-r--r--gcc/simplify-rtx.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c
index 7778db5..7ed849f 100644
--- a/gcc/simplify-rtx.c
+++ b/gcc/simplify-rtx.c
@@ -752,6 +752,7 @@ simplify_truncation (machine_mode mode, rtx op,
changing len. */
if ((GET_CODE (op) == ZERO_EXTRACT || GET_CODE (op) == SIGN_EXTRACT)
&& REG_P (XEXP (op, 0))
+ && GET_MODE (XEXP (op, 0)) == mode
&& CONST_INT_P (XEXP (op, 1))
&& CONST_INT_P (XEXP (op, 2)))
{