Fix a bug in xmmintrin.h.

ahatanaka · ahatanaka · commit 5d28ea14517a · 2014-05-23T00:38:07.000Z
The last step of _mm_cvtps_pi16 should use _mm_packs_pi32, which is a function
that reads two __m64 values and packs four 32-bit values into four 16-bit
values.  

&lt;rdar://problem/16873717&gt;

llvm-svn: 209489
diff --git a/clang/lib/Headers/xmmintrin.h b/clang/lib/Headers/xmmintrin.h
@@ -905,7 +905,7 @@ _mm_cvtps_pi16(__m128 __a)
   __a = _mm_movehl_ps(__a, __a);
   __c = _mm_cvtps_pi32(__a);
   
-  return _mm_packs_pi16(__b, __c);
+  return _mm_packs_pi32(__b, __c);
 }
 
 static __inline__ __m64 __attribute__((__always_inline__, __nodebug__))

Original file line number	Diff line number	Diff line change
`@@ -905,7 +905,7 @@ _mm_cvtps_pi16(__m128 __a)`
`905`	`905`	`__a = _mm_movehl_ps(__a, __a);`
`906`	`906`	`__c = _mm_cvtps_pi32(__a);`
`907`	`907`
`908`		`- return _mm_packs_pi16(__b, __c);`
	`908`	`+ return _mm_packs_pi32(__b, __c);`
`909`	`909`	`}`
`910`	`910`
`911`	`911`	`static __inline__ __m64 __attribute__((__always_inline__, __nodebug__))`