On 02/10/2016 02:33 PM, Richard Biener wrote:

But if you prefer I can instead test the following

Index: gcc/ifcvt.c
===================================================================
--- gcc/ifcvt.c (revision 233262)
+++ gcc/ifcvt.c (working copy)
@@ -1274,7 +1274,7 @@ noce_try_store_flag_constants (struct no
        && CONST_INT_P (XEXP (a, 1))
        && CONST_INT_P (XEXP (b, 1))
        && rtx_equal_p (XEXP (a, 0), XEXP (b, 0))
-      && noce_operand_ok (XEXP (a, 0))
+      && REG_P (XEXP (a, 0))
        && if_info->branch_cost >= 2)

I think I prefer this, but actually maybe OBJECT_P is safe enough.


Bernd

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