r271250 - [X86] Use unaligned load intrinsics to implement other intrinsics instead of manually creating the unaligned load.

[Craig Topper via cfe-commits]

Author: ctopper
Date: Tue May 31 00:49:13 2016
New Revision: 271250

URL: http://llvm.org/viewvc/llvm-project?rev=271250&view=rev
Log:
[X86] Use unaligned load intrinsics to implement other intrinsics instead of manually creating the unaligned load.

Modified:
    cfe/trunk/lib/Headers/avxintrin.h

Modified: cfe/trunk/lib/Headers/avxintrin.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Headers/avxintrin.h?rev=271250&r1=271249&r2=271250&view=diff
==============================================================================
--- cfe/trunk/lib/Headers/avxintrin.h (original)
+++ cfe/trunk/lib/Headers/avxintrin.h Tue May 31 00:49:13 2016
@@ -2813,35 +2813,22 @@ _mm256_castsi128_si256(__m128i __a)
 static __inline __m256 __DEFAULT_FN_ATTRS
 _mm256_loadu2_m128(float const *__addr_hi, float const *__addr_lo)
 {
-  struct __loadu_ps {
-    __m128 __v;
-  } __attribute__((__packed__, __may_alias__));
-
-  __m256 __v256 = _mm256_castps128_ps256(((struct __loadu_ps*)__addr_lo)->__v);
-  return _mm256_insertf128_ps(__v256, ((struct __loadu_ps*)__addr_hi)->__v, 1);
+  __m256 __v256 = _mm256_castps128_ps256(_mm_loadu_ps(__addr_lo));
+  return _mm256_insertf128_ps(__v256, _mm_loadu_ps(__addr_hi), 1);
 }
 
 static __inline __m256d __DEFAULT_FN_ATTRS
 _mm256_loadu2_m128d(double const *__addr_hi, double const *__addr_lo)
 {
-  struct __loadu_pd {
-    __m128d __v;
-  } __attribute__((__packed__, __may_alias__));
-
-  __m256d __v256 = _mm256_castpd128_pd256(((struct __loadu_pd*)__addr_lo)->__v);
-  return _mm256_insertf128_pd(__v256, ((struct __loadu_pd*)__addr_hi)->__v, 1);
+  __m256d __v256 = _mm256_castpd128_pd256(_mm_loadu_pd(__addr_lo));
+  return _mm256_insertf128_pd(__v256, _mm_loadu_pd(__addr_hi), 1);
 }
 
 static __inline __m256i __DEFAULT_FN_ATTRS
 _mm256_loadu2_m128i(__m128i const *__addr_hi, __m128i const *__addr_lo)
 {
-  struct __loadu_si128 {
-    __m128i __v;
-  } __attribute__((__packed__, __may_alias__));
-  __m256i __v256 = _mm256_castsi128_si256(
-    ((struct __loadu_si128*)__addr_lo)->__v);
-  return _mm256_insertf128_si256(__v256,
-                                 ((struct __loadu_si128*)__addr_hi)->__v, 1);
+  __m256i __v256 = _mm256_castsi128_si256(_mm_loadu_si128(__addr_lo));
+  return _mm256_insertf128_si256(__v256, _mm_loadu_si128(__addr_hi), 1);
 }
 
 /* SIMD store ops (unaligned) */