1 files changed, 36 insertions, 4 deletions
diff --git a/test/CodeGen/X86/sse41-blend.ll b/test/CodeGen/X86/sse41-blend.ll
index 4681fde..8ad7987 100644
--- a/test/CodeGen/X86/sse41-blend.ll
+++ b/test/CodeGen/X86/sse41-blend.ll
@@ -1,7 +1,7 @@
 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 -mattr=+sse4.1 | FileCheck %s
 
 ;CHECK-LABEL: vsel_float:
-;CHECK: blendvps
+;CHECK: blendps
 ;CHECK: ret
 define <4 x float> @vsel_float(<4 x float> %v1, <4 x float> %v2) {
   %vsel = select <4 x i1> <i1 true, i1 false, i1 true, i1 true>, <4 x float> %v1, <4 x float> %v2
@@ -10,7 +10,7 @@ define <4 x float> @vsel_float(<4 x float> %v1, <4 x float> %v2) {
 
 
 ;CHECK-LABEL: vsel_4xi8:
-;CHECK: blendvps
+;CHECK: blendps
 ;CHECK: ret
 define <4 x i8> @vsel_4xi8(<4 x i8> %v1, <4 x i8> %v2) {
   %vsel = select <4 x i1> <i1 true, i1 true, i1 false, i1 true>, <4 x i8> %v1, <4 x i8> %v2
@@ -18,7 +18,7 @@ define <4 x i8> @vsel_4xi8(<4 x i8> %v1, <4 x i8> %v2) {
 }
 
 ;CHECK-LABEL: vsel_4xi16:
-;CHECK: blendvps
+;CHECK: blendps
 ;CHECK: ret
 define <4 x i16> @vsel_4xi16(<4 x i16> %v1, <4 x i16> %v2) {
   %vsel = select <4 x i1> <i1 true, i1 false, i1 true, i1 true>, <4 x i16> %v1, <4 x i16> %v2
@@ -27,7 +27,7 @@ define <4 x i16> @vsel_4xi16(<4 x i16> %v1, <4 x i16> %v2) {
 
 
 ;CHECK-LABEL: vsel_i32:
-;CHECK: blendvps
+;CHECK: blendps
 ;CHECK: ret
 define <4 x i32> @vsel_i32(<4 x i32> %v1, <4 x i32> %v2) {
   %vsel = select <4 x i1> <i1 true, i1 true, i1 false, i1 true>, <4 x i32> %v1, <4 x i32> %v2
@@ -88,3 +88,35 @@ entry:
   store double %extract214vector_func.i, double addrspace(1)* undef, align 8
   ret void
 }
+
+; If we can figure out a blend has a constant mask, we should emit the
+; blend instruction with an immediate mask
+define <2 x double> @constant_blendvpd(<2 x double> %xy, <2 x double> %ab) {
+; In this case, we emit a simple movss
+; CHECK-LABEL: constant_blendvpd
+; CHECK: movsd
+; CHECK: ret
+  %1 = select <2 x i1> <i1 true, i1 false>, <2 x double> %xy, <2 x double> %ab
+  ret <2 x double> %1
+}
+
+define <4 x float> @constant_blendvps(<4 x float> %xyzw, <4 x float> %abcd) {
+; CHECK-LABEL: constant_blendvps
+; CHECK-NOT: mov
+; CHECK: blendps $7
+; CHECK: ret
+  %1 = select <4 x i1> <i1 false, i1 false, i1 false, i1 true>, <4 x float> %xyzw, <4 x float> %abcd
+  ret <4 x float> %1
+}
+
+define <16 x i8> @constant_pblendvb(<16 x i8> %xyzw, <16 x i8> %abcd) {
+; CHECK-LABEL: constant_pblendvb:
+; CHECK: movaps
+; CHECK: pblendvb
+; CHECK: ret
+  %1 = select <16 x i1> <i1 false, i1 false, i1 true, i1 false, i1 true, i1 true, i1 true, i1 false, i1 false, i1 false, i1 true, i1 false, i1 true, i1 true, i1 true, i1 false>, <16 x i8> %xyzw, <16 x i8> %abcd
+  ret <16 x i8> %1
+}
+declare <16 x i8> @llvm.x86.sse41.pblendvb(<16 x i8>, <16 x i8>, <16 x i8>)
+declare <4 x float> @llvm.x86.sse41.blendvps(<4 x float>, <4 x float>, <4 x float>)
+declare <2 x double> @llvm.x86.sse41.blendvpd(<2 x double>, <2 x double>, <2 x double>)