1 files changed, 31 insertions, 0 deletions
diff --git a/clang/test/CodeGen/palignr.c b/clang/test/CodeGen/palignr.c
new file mode 100644
index 0000000..1712df5
--- /dev/null
+++ b/clang/test/CodeGen/palignr.c
@@ -0,0 +1,31 @@
+// REQUIRES: x86-registered-target
+// RUN: %clang_cc1 %s -triple=i686-apple-darwin -target-feature +ssse3 -O1 -S -o - | FileCheck %s
+
+#define _mm_alignr_epi8(a, b, n) (__builtin_ia32_palignr128((a), (b), (n)))
+typedef __attribute__((vector_size(16))) int int4;
+
+// CHECK: palignr
+int4 align1(int4 a, int4 b) { return _mm_alignr_epi8(a, b, 15); }
+// CHECK: ret
+// CHECK: ret
+// CHECK-NOT: palignr
+int4 align2(int4 a, int4 b) { return _mm_alignr_epi8(a, b, 16); }
+// CHECK: psrldq
+int4 align3(int4 a, int4 b) { return _mm_alignr_epi8(a, b, 17); }
+// CHECK: xor
+int4 align4(int4 a, int4 b) { return _mm_alignr_epi8(a, b, 32); }
+
+#define _mm_alignr_pi8(a, b, n) (__builtin_ia32_palignr((a), (b), (n)))
+typedef __attribute__((vector_size(8))) int int2;
+
+// CHECK: palignr
+int2 align5(int2 a, int2 b) { return _mm_alignr_pi8(a, b, 8); }
+
+// CHECK: palignr
+int2 align6(int2 a, int2 b) { return _mm_alignr_pi8(a, b, 9); }
+
+// CHECK: palignr
+int2 align7(int2 a, int2 b) { return _mm_alignr_pi8(a, b, 16); }
+
+// CHECK: palignr
+int2 align8(int2 a, int2 b) { return _mm_alignr_pi8(a, b, 7); }