Allow more cases of undef shuffle indices and add tests for them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111226 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/ARM/vrev.ll b/test/CodeGen/ARM/vrev.ll
index deed554..e1fe64b 100644
--- a/test/CodeGen/ARM/vrev.ll
+++ b/test/CodeGen/ARM/vrev.ll
@@ -111,3 +111,21 @@
%tmp2 = shufflevector <16 x i8> %tmp1, <16 x i8> undef, <16 x i32> <i32 1, i32 0, i32 3, i32 2, i32 5, i32 4, i32 7, i32 6, i32 9, i32 8, i32 11, i32 10, i32 13, i32 12, i32 15, i32 14>
ret <16 x i8> %tmp2
}
+
+; Undef shuffle indices should not prevent matching to VREV:
+
+define <8 x i8> @test_vrev64D8_undef(<8 x i8>* %A) nounwind {
+;CHECK: test_vrev64D8_undef:
+;CHECK: vrev64.8
+ %tmp1 = load <8 x i8>* %A
+ %tmp2 = shufflevector <8 x i8> %tmp1, <8 x i8> undef, <8 x i32> <i32 7, i32 undef, i32 undef, i32 4, i32 3, i32 2, i32 1, i32 0>
+ ret <8 x i8> %tmp2
+}
+
+define <8 x i16> @test_vrev32Q16_undef(<8 x i16>* %A) nounwind {
+;CHECK: test_vrev32Q16_undef:
+;CHECK: vrev32.16
+ %tmp1 = load <8 x i16>* %A
+ %tmp2 = shufflevector <8 x i16> %tmp1, <8 x i16> undef, <8 x i32> <i32 undef, i32 0, i32 undef, i32 2, i32 5, i32 4, i32 7, i32 undef>
+ ret <8 x i16> %tmp2
+}