1 files changed, 43 insertions, 1 deletions
diff --git a/test/CodeGen/X86/avx-blend.ll b/test/CodeGen/X86/avx-blend.ll
index e21c7a0..d2a22d7 100644
--- a/test/CodeGen/X86/avx-blend.ll
+++ b/test/CodeGen/X86/avx-blend.ll
@@ -110,7 +110,7 @@ define <8 x i64> @vsel_i648(<8 x i64> %v1, <8 x i64> %v2) {
 
 ;CHECK-LABEL: vsel_double4:
 ;CHECK-NOT: vinsertf128
-;CHECK: vshufpd $10
+;CHECK: vblendpd $10
 ;CHECK-NEXT: ret
 define <4 x double> @vsel_double4(<4 x double> %v1, <4 x double> %v2) {
   %vsel = select <4 x i1> <i1 true, i1 false, i1 true, i1 false>, <4 x double> %v1, <4 x double> %v2
@@ -158,3 +158,45 @@ define <8 x float> @constant_blendvps_avx(<8 x float> %xyzw, <8 x float> %abcd)
 
 declare <8 x float> @llvm.x86.avx.blendv.ps.256(<8 x float>, <8 x float>, <8 x float>)
 declare <4 x double> @llvm.x86.avx.blendv.pd.256(<4 x double>, <4 x double>, <4 x double>)
+
+;; 4 tests for shufflevectors that optimize to blend + immediate
+; CHECK-LABEL: @blend_shufflevector_4xfloat
+define <4 x float> @blend_shufflevector_4xfloat(<4 x float> %a, <4 x float> %b) {
+; Equivalent select mask is <i1 true, i1 false, i1 true, i1 false>.
+; Big endian representation is 0101 = 5.
+; '1' means takes the first argument, '0' means takes the second argument.
+; This is the opposite of the intel syntax, thus we expect
+; Inverted mask: 1010 = 10.
+; According to the ABI:
+; a is in xmm0 => first argument is xmm0.
+; b is in xmm1 => second argument is xmm1.
+; Result is in xmm0 => destination argument.
+; CHECK: vblendps $10, %xmm1, %xmm0, %xmm0
+; CHECK: ret
+  %1 = shufflevector <4 x float> %a, <4 x float> %b, <4 x i32> <i32 0, i32 5, i32 2, i32 7>
+  ret <4 x float> %1
+}
+
+; CHECK-LABEL: @blend_shufflevector_8xfloat
+define <8 x float> @blend_shufflevector_8xfloat(<8 x float> %a, <8 x float> %b) {
+; CHECK: vblendps $190, %ymm1, %ymm0, %ymm0
+; CHECK: ret
+  %1 = shufflevector <8 x float> %a, <8 x float> %b, <8 x i32> <i32 0, i32 9, i32 10, i32 11, i32 12, i32 13, i32 6, i32 15>
+  ret <8 x float> %1
+}
+
+; CHECK-LABEL: @blend_shufflevector_4xdouble
+define <4 x double> @blend_shufflevector_4xdouble(<4 x double> %a, <4 x double> %b) {
+; CHECK: vblendpd $2, %ymm1, %ymm0, %ymm0
+; CHECK: ret
+  %1 = shufflevector <4 x double> %a, <4 x double> %b, <4 x i32> <i32 0, i32 5, i32 2, i32 3>
+  ret <4 x double> %1
+}
+
+; CHECK-LABEL: @blend_shufflevector_4xi64
+define <4 x i64> @blend_shufflevector_4xi64(<4 x i64> %a, <4 x i64> %b) {
+; CHECK: vblendpd $13, %ymm1, %ymm0, %ymm0
+; CHECK: ret
+  %1 = shufflevector <4 x i64> %a, <4 x i64> %b, <4 x i32> <i32 4, i32 1, i32 6, i32 7>
+  ret <4 x i64> %1
+}