xmmintrin.h (_mm_pause): Move out of scope of pragma target("sse").

gcc/:
	* config/i386/xmmintrin.h (_mm_pause): Move out of scope of pragma
	target("sse").
testsuite/:
	* gcc.target/i386/pause-2.c: New test.

From-SVN: r211079

gcc/ChangeLog

+2014-05-30  Ian Lance Taylor  <iant@google.com>
+
+	* config/i386/xmmintrin.h (_mm_pause): Move out of scope of pragma
+	target("sse").
+
 2014-05-30  Tom de Vries  <tom@codesourcery.com>
 
 	* config/i386/i386.c (TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS):

gcc/config/i386/xmmintrin.h

@@ -1231,15 +1231,6 @@ _mm_sfence (void)
   __builtin_ia32_sfence ();
 }
 
-/* The execution of the next instruction is delayed by an implementation
-   specific amount of time.  The instruction does not modify the
-   architectural state.  */
-extern __inline void __attribute__((__gnu_inline__, __always_inline__, __artificial__))
-_mm_pause (void)
-{
-  __builtin_ia32_pause ();
-}
-
 /* Transpose the 4x4 matrix composed of row[0-3].  */
 #define _MM_TRANSPOSE4_PS(row0, row1, row2, row3)			\
 do {									\
@@ -1262,4 +1253,15 @@ do {									\
 #pragma GCC pop_options
 #endif /* __DISABLE_SSE__ */
 
+/* The execution of the next instruction is delayed by an implementation
+   specific amount of time.  The instruction does not modify the
+   architectural state.  This is after the pop_options pragma because
+   it does not require SSE support in the processor--the encoding is a
+   nop on processors that do not support it.  */
+extern __inline void __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_pause (void)
+{
+  __builtin_ia32_pause ();
+}
+
 #endif /* _XMMINTRIN_H_INCLUDED */

gcc/testsuite/ChangeLog

+2014-05-30  Ian Lance Taylor  <iant@google.com>
+
+	* gcc.target/i386/pause-2.c: New test.
+
 2014-05-30  Tom de Vries  <tom@codesourcery.com>
 
 	* gcc.target/i386/fuse-caller-save.c: New test.

gcc/testsuite/gcc.target/i386/pause-2.c

+/* Test that pause instruction works even when SSE is not enabled.  */
+/* { dg-do compile } */
+/* { dg-options "-O2 -dp" } */
+/* { dg-final { scan-assembler-times "\\*pause" 1 } } */
+
+#include <xmmintrin.h>
+
+void
+foo (void)
+{
+  _mm_pause ();
+}