1 files changed, 133 insertions, 0 deletions
diff --git a/test/CodeGen/X86/vselect.ll b/test/CodeGen/X86/vselect.ll
new file mode 100644
index 0000000000..af8c310618
--- /dev/null
+++ b/test/CodeGen/X86/vselect.ll
@@ -0,0 +1,133 @@
+; RUN: llc -march=x86-64 -mcpu=corei7 -mattr=-sse4.1 < %s | FileCheck %s
+
+; Verify that we don't emit packed vector shifts instructions if the
+; condition used by the vector select is a vector of constants.
+
+
+define <4 x float> @test1(<4 x float> %a, <4 x float> %b) {
+  %1 = select <4 x i1> <i1 true, i1 false, i1 true, i1 false>, <4 x float> %a, <4 x float> %b
+  ret <4 x float> %1
+}
+; CHECK-LABEL: test1
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK: ret
+
+
+define <4 x float> @test2(<4 x float> %a, <4 x float> %b) {
+  %1 = select <4 x i1> <i1 true, i1 true, i1 false, i1 false>, <4 x float> %a, <4 x float> %b
+  ret <4 x float> %1
+}
+; CHECK-LABEL: test2
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK: ret
+
+
+define <4 x float> @test3(<4 x float> %a, <4 x float> %b) {
+  %1 = select <4 x i1> <i1 false, i1 false, i1 true, i1 true>, <4 x float> %a, <4 x float> %b
+  ret <4 x float> %1
+}
+; CHECK-LABEL: test3
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK: ret
+
+
+define <4 x float> @test4(<4 x float> %a, <4 x float> %b) {
+  %1 = select <4 x i1> <i1 false, i1 false, i1 false, i1 false>, <4 x float> %a, <4 x float> %b
+  ret <4 x float> %1
+}
+; CHECK-LABEL: test4
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK: movaps  %xmm1, %xmm0
+; CHECK: ret
+
+
+define <4 x float> @test5(<4 x float> %a, <4 x float> %b) {
+  %1 = select <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x float> %a, <4 x float> %b
+  ret <4 x float> %1
+}
+; CHECK-LABEL: test5
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK: ret
+
+
+define <8 x i16> @test6(<8 x i16> %a, <8 x i16> %b) {
+  %1 = select <8 x i1> <i1 true, i1 false, i1 true, i1 false, i1 true, i1 false, i1 true, i1 false>, <8 x i16> %a, <8 x i16> %a
+  ret <8 x i16> %1
+}
+; CHECK-LABEL: test6
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK: ret
+
+
+define <8 x i16> @test7(<8 x i16> %a, <8 x i16> %b) {
+  %1 = select <8 x i1> <i1 true, i1 true, i1 true, i1 true, i1 false, i1 false, i1 false, i1 false>, <8 x i16> %a, <8 x i16> %b
+  ret <8 x i16> %1
+}
+; CHECK-LABEL: test7
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK: ret
+
+
+define <8 x i16> @test8(<8 x i16> %a, <8 x i16> %b) {
+  %1 = select <8 x i1> <i1 false, i1 false, i1 false, i1 false, i1 true, i1 true, i1 true, i1 true>, <8 x i16> %a, <8 x i16> %b
+  ret <8 x i16> %1
+}
+; CHECK-LABEL: test8
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK: ret
+
+define <8 x i16> @test9(<8 x i16> %a, <8 x i16> %b) {
+  %1 = select <8 x i1> <i1 false, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false>, <8 x i16> %a, <8 x i16> %b
+  ret <8 x i16> %1
+}
+; CHECK-LABEL: test9
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK: movaps  %xmm1, %xmm0
+; CHECK-NEXT: ret
+
+define <8 x i16> @test10(<8 x i16> %a, <8 x i16> %b) {
+  %1 = select <8 x i1> <i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true>, <8 x i16> %a, <8 x i16> %b
+  ret <8 x i16> %1
+}
+; CHECK-LABEL: test10
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK: ret
+
+define <8 x i16> @test11(<8 x i16> %a, <8 x i16> %b) {
+  %1 = select <8 x i1> <i1 false, i1 true, i1 true, i1 false, i1 undef, i1 true, i1 true, i1 undef>, <8 x i16> %a, <8 x i16> %b
+  ret <8 x i16> %1
+}
+; CHECK-LABEL: test11
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK: ret
+
+define <8 x i16> @test12(<8 x i16> %a, <8 x i16> %b) {
+  %1 = select <8 x i1> <i1 false, i1 false, i1 undef, i1 false, i1 false, i1 false, i1 false, i1 undef>, <8 x i16> %a, <8 x i16> %b
+  ret <8 x i16> %1
+}
+; CHECK-LABEL: test12
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK: ret
+
+define <8 x i16> @test13(<8 x i16> %a, <8 x i16> %b) {
+  %1 = select <8 x i1> <i1 undef, i1 undef, i1 undef, i1 undef, i1 undef, i1 undef, i1 undef, i1 undef>, <8 x i16> %a, <8 x i16> %b
+  ret <8 x i16> %1
+}
+; CHECK-LABEL: test13
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK: ret
+
+