[PowerPC] [Clang] Port SSE4.1-compatible insert intrinsics

This patch adds three intrinsics compatible to x86's SSE 4.1 on PowerPC
target, with tests:

- _mm_insert_epi8
- _mm_insert_epi32
- _mm_insert_epi64

The intrinsics implementation is contributed by Paul Clarke.

Reviewed By: jsji

Differential Revision: https://reviews.llvm.org/D89242

1 files changed, 24 insertions, 0 deletions

diff --git a/clang/lib/Headers/ppc_wrappers/smmintrin.h b/clang/lib/Headers/ppc_wrappers/smmintrin.h
index 56ef6ba..64f0c76 100644
--- a/clang/lib/Headers/ppc_wrappers/smmintrin.h
+++ b/clang/lib/Headers/ppc_wrappers/smmintrin.h
@@ -78,6 +78,30 @@ extern __inline __m128i
   return (__m128i)vec_sel((__v16qu)__A, (__v16qu)__B, __lmask);
 }
 
+extern __inline __m128i
+    __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+    _mm_insert_epi8(__m128i const __A, int const __D, int const __N) {
+  __v16qi result = (__v16qi)__A;
+  result[__N & 0xf] = __D;
+  return (__m128i)result;
+}
+
+extern __inline __m128i
+    __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+    _mm_insert_epi32(__m128i const __A, int const __D, int const __N) {
+  __v4si result = (__v4si)__A;
+  result[__N & 3] = __D;
+  return (__m128i)result;
+}
+
+extern __inline __m128i
+    __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+    _mm_insert_epi64(__m128i const __A, long long const __D, int const __N) {
+  __v2di result = (__v2di)__A;
+  result[__N & 1] = __D;
+  return (__m128i)result;
+}
+
 #else
 #include_next <smmintrin.h>
 #endif /* defined(__linux__) && defined(__ppc64__) */