1 files changed, 37 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/insert-extract-shuffle.ll b/test/Transforms/InstCombine/insert-extract-shuffle.ll
new file mode 100644
index 000000000000..8929c82def7b
--- /dev/null
+++ b/test/Transforms/InstCombine/insert-extract-shuffle.ll
@@ -0,0 +1,37 @@
+; RUN: opt -S -instcombine %s | FileCheck %s
+
+define <1 x i8> @test1(<8 x i8> %in) {
+; CHECK-LABEL: @test1
+; CHECK: shufflevector <8 x i8> %in, <8 x i8> undef, <1 x i32> <i32 5>
+  %val = extractelement <8 x i8> %in, i32 5
+  %vec = insertelement <1 x i8> undef, i8 %val, i32 0
+  ret <1 x i8> %vec
+}
+
+define <4 x i16> @test2(<8 x i16> %in, <8 x i16> %in2) {
+; CHECK-LABEL: @test2
+; CHECK: shufflevector <8 x i16> %in2, <8 x i16> %in, <4 x i32> <i32 11, i32 9, i32 0, i32 10>
+  %elt0 = extractelement <8 x i16> %in, i32 3
+  %elt1 = extractelement <8 x i16> %in, i32 1
+  %elt2 = extractelement <8 x i16> %in2, i32 0
+  %elt3 = extractelement <8 x i16> %in, i32 2
+
+  %vec.0 = insertelement <4 x i16> undef, i16 %elt0, i32 0
+  %vec.1 = insertelement <4 x i16> %vec.0, i16 %elt1, i32 1
+  %vec.2 = insertelement <4 x i16> %vec.1, i16 %elt2, i32 2
+  %vec.3 = insertelement <4 x i16> %vec.2, i16 %elt3, i32 3
+
+  ret <4 x i16> %vec.3
+}
+
+define <2 x i64> @test_vcopyq_lane_p64(<2 x i64> %a, <1 x i64> %b) #0 {
+; CHECK-LABEL: @test_vcopyq_lane_p64
+; CHECK: extractelement
+; CHECK: insertelement
+; CHECK-NOT: shufflevector
+entry:
+  %elt = extractelement <1 x i64> %b, i32 0
+  %res = insertelement <2 x i64> %a, i64 %elt, i32 1
+  ret <2 x i64> %res
+}
+