Fix problems compiling xmmintrin.h with only -msse.

From-SVN: r53230

gcc/ChangeLog

+2002-05-06  Bernd Schmidt  <bernds@redhat.com>
+
+	* config/i386/i386.h (CPP_CPUCOMMON_SPEC): Define __SSE2_BUILTINS__ if	
+	-msse2.
+	* config/i386/xmmintrin.h: Use it to conditionalize SSE2 support.
+	
 2002-05-06  Roger Sayle  <roger@eyesopen.com>
 
 	* fold-const.c (lshift-double): Cast the high word to an unsigned

gcc/config/i386/i386.h

@@ -619,6 +619,7 @@ extern int ix86_arch;
 |march=athlon-mp: -D__3dNOW__ }\
 %{march=athlon|march=athlon-tbird|march=athlon-4|march=athlon-xp\
 |march=athlon-mp: -D__3dNOW_A__ }\
+%{msse2: -D__SSE2_BUILTINS__ }\
 %{march=pentium4: -D__SSE2__ }\
 %{!march*:%{!mcpu*:%{!m386:%{!m486:%{!mpentium*:%(cpp_cpu_default)}}}}}"
 

gcc/config/i386/xmmintrin.h

@@ -1058,6 +1058,7 @@ do {									\
   (row3) = __builtin_ia32_shufps (__t2, __t3, 0xDD);			\
 } while (0)
 
+#ifdef __SSE2_BUILTINS__
 /* SSE2 */
 typedef int __v2df __attribute__ ((mode (V2DF)));
 typedef int __v2di __attribute__ ((mode (V2DI)));
@@ -1978,7 +1979,6 @@ _mm_mfence (void)
   __builtin_ia32_mfence ();
 }
 
-/* End of SSE2.  */
-
+#endif /* __SSE2_BUILTINS__  */
 
 #endif /* _XMMINTRIN_H_INCLUDED */