i386.md (movsi_1, [...]): Use mmxadd type for setting MMX register to 0 rather than mmx.

	* config/i386/i386.md (movsi_1, movdi_1_rex64): Use mmxadd type
	for setting MMX register to 0 rather than mmx.

	* g++.dg/opt/mmx2.C: New test.

From-SVN: r105230

gcc/ChangeLog

+2005-10-11  Jakub Jelinek  <jakub@redhat.com>
+
+	* config/i386/i386.md (movsi_1, movdi_1_rex64): Use mmxadd type
+	for setting MMX register to 0 rather than mmx.
+
 2005-10-10  Steve Ellcey  <sje@cup.hp.com>
 
 	PR target/12098

gcc/config/i386/i386.md

@@ -1193,7 +1193,7 @@
 }
   [(set (attr "type")
      (cond [(eq_attr "alternative" "2")
-	      (const_string "mmx")
+	      (const_string "mmxadd")
 	    (eq_attr "alternative" "3,4,5")
 	      (const_string "mmxmov")
 	    (eq_attr "alternative" "6")
@@ -2007,7 +2007,7 @@
 }
   [(set (attr "type")
      (cond [(eq_attr "alternative" "5")
-	      (const_string "mmx")
+	      (const_string "mmxadd")
 	    (eq_attr "alternative" "6,7,8")
 	      (const_string "mmxmov")
 	    (eq_attr "alternative" "9")

gcc/testsuite/ChangeLog

+2005-10-11  Jakub Jelinek  <jakub@redhat.com>
+
+	* g++.dg/opt/mmx2.C: New test.
+
 2005-10-10  Mark Mitchell  <mark@codesourcery.com>
 
 	PR c++/24277

gcc/testsuite/g++.dg/opt/mmx2.C

+// { dg-do link { target i?86-*-* x86_64-*-* } }
+// { dg-options "-O2 -mmmx" }
+
+#include <mmintrin.h>
+
+static union u { __m64 m; long long l; } u;
+extern "C" void abort (void);
+
+__attribute__((noinline))
+void bar (__m64 x)
+{
+  u.m = x;
+}
+
+int
+main ()
+{
+  bar (_mm_set_pi32 (0x000000FF,0xFFFF00FF));
+  _mm_empty ();
+  if (u.l != 0xffffff00ffLL)
+    abort ();
+  return 0;
+}