re PR rtl-optimization/54592 (Cannot fuse SSE move and add together)

	PR target/54592
	* config/i386/i386.c (ix86_rtx_costs): Limit > UNITS_PER_WORD
	AND/IOR/XOR cost calculation to MODE_INT class modes.

	* gcc.target/i386/pr54592.c: New test.

From-SVN: r191430

gcc/ChangeLog

+2012-09-18  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/54592
+	* config/i386/i386.c (ix86_rtx_costs): Limit > UNITS_PER_WORD
+	AND/IOR/XOR cost calculation to MODE_INT class modes.
+
 2012-09-18 Thomas Quinot  <quinot@adacore.com>       
 
 	* doc/invoke.texi: Document -fada-spec-parent.

gcc/config/i386/i386.c

@@ -32792,7 +32792,8 @@ ix86_rtx_costs (rtx x, int code_i, int outer_code_i, int opno, int *total,
     case AND:
     case IOR:
     case XOR:
-      if (GET_MODE_SIZE (mode) > UNITS_PER_WORD)
+      if (GET_MODE_CLASS (mode) == MODE_INT
+	  && GET_MODE_SIZE (mode) > UNITS_PER_WORD)
 	{
 	  *total = (cost->add * 2
 		    + (rtx_cost (XEXP (x, 0), outer_code, opno, speed)

gcc/testsuite/ChangeLog

 2012-09-18  Jakub Jelinek  <jakub@redhat.com>
 
+	PR target/54592
+	* gcc.target/i386/pr54592.c: New test.
+
 	PR tree-optimization/54610
 	* gcc.target/i386/pr54610.c: New test.
 

gcc/testsuite/gcc.target/i386/pr54592.c

+/* PR target/54592 */
+/* { dg-do compile } */
+/* { dg-options "-Os -msse2" } */
+/* { dg-require-effective-target sse2 } */
+
+#include <emmintrin.h>
+
+void
+func (__m128i * foo, size_t a, size_t b, int *dst)
+{
+  __m128i x = foo[a];
+  __m128i y = foo[b];
+  __m128i sum = _mm_add_epi32 (x, y);
+  *dst = _mm_cvtsi128_si32 (sum);
+}
+
+/* { dg-final { scan-assembler "paddd\[^\n\r\]*(\\(\[^\n\r\]*\\)|XMMWORD PTR)" } } */