+2010-09-22 Jakub Jelinek <jakub@redhat.com>
+
+ PR rtl-optimization/45739
+ * simplify-rtx.c (simplify_binary_operation_1): Optimize even
+ vector mode | CONST0_RTX (mode) and ^ CONST0_RTX (mode).
+
2010-09-21 Anatoly Sokolov <aesok@post.ru>
* config/rs6000/rs6000.h (OUTPUT_ADDR_CONST_EXTRA): Remove macros.
break;
case IOR:
- if (trueop1 == const0_rtx)
+ if (trueop1 == CONST0_RTX (mode))
return op0;
if (CONST_INT_P (trueop1)
&& ((INTVAL (trueop1) & GET_MODE_MASK (mode))
break;
case XOR:
- if (trueop1 == const0_rtx)
+ if (trueop1 == CONST0_RTX (mode))
return op0;
if (CONST_INT_P (trueop1)
&& ((INTVAL (trueop1) & GET_MODE_MASK (mode))
+2010-09-22 Jakub Jelinek <jakub@redhat.com>
+
+ PR rtl-optimization/45739
+ * gcc.target/i386/pr45739.c: New test.
+
2010-09-21 Mikael Morin <mikael@gcc.gnu.org>
PR fortran/45648
--- /dev/null
+/* PR rtl-optimization/45739 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -msse2" } */
+
+#include <emmintrin.h>
+
+__m128i var;
+
+void
+foo (void)
+{
+ __m128i zero = _mm_setzero_si128 ();
+ var = _mm_xor_si128 (zero, var);
+}
+
+void
+bar (void)
+{
+ __m128i zero = _mm_setzero_si128 ();
+ var = _mm_or_si128 (var, zero);
+}
+
+/* { dg-final { scan-assembler-not "pxor" } } */
+/* { dg-final { scan-assembler-not "por" } } */