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-rw-r--r--gcc/combine.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/gcc/combine.c b/gcc/combine.c
index ff672ad..3ad050f 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -5575,11 +5575,15 @@ subst (rtx x, rtx from, rtx to, int in_dest, int in_cond, int unique_copy)
x = gen_rtx_CLOBBER (mode, const0_rtx);
}
else if (CONST_SCALAR_INT_P (new_rtx)
- && GET_CODE (x) == ZERO_EXTEND)
+ && (GET_CODE (x) == ZERO_EXTEND
+ || GET_CODE (x) == FLOAT
+ || GET_CODE (x) == UNSIGNED_FLOAT))
{
- x = simplify_unary_operation (ZERO_EXTEND, GET_MODE (x),
- new_rtx, GET_MODE (XEXP (x, 0)));
- gcc_assert (x);
+ x = simplify_unary_operation (GET_CODE (x), GET_MODE (x),
+ new_rtx,
+ GET_MODE (XEXP (x, 0)));
+ if (!x)
+ return gen_rtx_CLOBBER (VOIDmode, const0_rtx);
}
else
SUBST (XEXP (x, i), new_rtx);