rs6000: Support _mm_insert_epi{8,32,64}

Add compatibility implementations for SSE4.1 intrinsics
_mm_insert_epi8, _mm_insert_epi32, _mm_insert_epi64.

2020-09-23  Paul A. Clarke  <pc@us.ibm.com>

gcc/
	* config/rs6000/smmintrin.h (_mm_insert_epi8): New.
	(_mm_insert_epi32): New.
	(_mm_insert_epi64): New.

1 files changed, 30 insertions, 0 deletions

diff --git a/gcc/config/rs6000/smmintrin.h b/gcc/config/rs6000/smmintrin.h
index d78ddba..4c0fc86 100644
--- a/gcc/config/rs6000/smmintrin.h
+++ b/gcc/config/rs6000/smmintrin.h
@@ -42,6 +42,36 @@
 #include <altivec.h>
 #include <tmmintrin.h>
 
+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;
+}
+
 extern __inline int __attribute__((__gnu_inline__, __always_inline__, __artificial__))
 _mm_extract_epi8 (__m128i __X, const int __N)
 {