Add support for ARM Neon VREV instructions.
Patch by Anton Korzh, with some modifications from me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77101 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/ARM/vrev.ll b/test/CodeGen/ARM/vrev.ll
new file mode 100644
index 0000000..994d89d
--- /dev/null
+++ b/test/CodeGen/ARM/vrev.ll
@@ -0,0 +1,113 @@
+; RUN: llvm-as < %s | llc -march=arm -mattr=+neon | FileCheck %s
+
+define arm_apcscc <8 x i8> @test_vrev64D8(<8 x i8>* %A) nounwind {
+;CHECK: test_vrev64D8:
+;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 6, i32 5, i32 4, i32 3, i32 2, i32 1, i32 0>
+ ret <8 x i8> %tmp2
+}
+
+define arm_apcscc <4 x i16> @test_vrev64D16(<4 x i16>* %A) nounwind {
+;CHECK: test_vrev64D16:
+;CHECK: vrev64.16
+ %tmp1 = load <4 x i16>* %A
+ %tmp2 = shufflevector <4 x i16> %tmp1, <4 x i16> undef, <4 x i32> <i32 3, i32 2, i32 1, i32 0>
+ ret <4 x i16> %tmp2
+}
+
+define arm_apcscc <2 x i32> @test_vrev64D32(<2 x i32>* %A) nounwind {
+;CHECK: test_vrev64D32:
+;CHECK: vrev64.32
+ %tmp1 = load <2 x i32>* %A
+ %tmp2 = shufflevector <2 x i32> %tmp1, <2 x i32> undef, <2 x i32> <i32 1, i32 0>
+ ret <2 x i32> %tmp2
+}
+
+define arm_apcscc <2 x float> @test_vrev64Df(<2 x float>* %A) nounwind {
+;CHECK: test_vrev64Df:
+;CHECK: vrev64.32
+ %tmp1 = load <2 x float>* %A
+ %tmp2 = shufflevector <2 x float> %tmp1, <2 x float> undef, <2 x i32> <i32 1, i32 0>
+ ret <2 x float> %tmp2
+}
+
+define arm_apcscc <16 x i8> @test_vrev64Q8(<16 x i8>* %A) nounwind {
+;CHECK: test_vrev64Q8:
+;CHECK: vrev64.8
+ %tmp1 = load <16 x i8>* %A
+ %tmp2 = shufflevector <16 x i8> %tmp1, <16 x i8> undef, <16 x i32> <i32 7, i32 6, i32 5, i32 4, i32 3, i32 2, i32 1, i32 0, i32 15, i32 14, i32 13, i32 12, i32 11, i32 10, i32 9, i32 8>
+ ret <16 x i8> %tmp2
+}
+
+define arm_apcscc <8 x i16> @test_vrev64Q16(<8 x i16>* %A) nounwind {
+;CHECK: test_vrev64Q16:
+;CHECK: vrev64.16
+ %tmp1 = load <8 x i16>* %A
+ %tmp2 = shufflevector <8 x i16> %tmp1, <8 x i16> undef, <8 x i32> <i32 3, i32 2, i32 1, i32 0, i32 7, i32 6, i32 5, i32 4>
+ ret <8 x i16> %tmp2
+}
+
+define arm_apcscc <4 x i32> @test_vrev64Q32(<4 x i32>* %A) nounwind {
+;CHECK: test_vrev64Q32:
+;CHECK: vrev64.32
+ %tmp1 = load <4 x i32>* %A
+ %tmp2 = shufflevector <4 x i32> %tmp1, <4 x i32> undef, <4 x i32> <i32 1, i32 0, i32 3, i32 2>
+ ret <4 x i32> %tmp2
+}
+
+define arm_apcscc <4 x float> @test_vrev64Qf(<4 x float>* %A) nounwind {
+;CHECK: test_vrev64Qf:
+;CHECK: vrev64.32
+ %tmp1 = load <4 x float>* %A
+ %tmp2 = shufflevector <4 x float> %tmp1, <4 x float> undef, <4 x i32> <i32 1, i32 0, i32 3, i32 2>
+ ret <4 x float> %tmp2
+}
+
+define arm_apcscc <8 x i8> @test_vrev32D8(<8 x i8>* %A) nounwind {
+;CHECK: test_vrev32D8:
+;CHECK: vrev32.8
+ %tmp1 = load <8 x i8>* %A
+ %tmp2 = shufflevector <8 x i8> %tmp1, <8 x i8> undef, <8 x i32> <i32 3, i32 2, i32 1, i32 0, i32 7, i32 6, i32 5, i32 4>
+ ret <8 x i8> %tmp2
+}
+
+define arm_apcscc <4 x i16> @test_vrev32D16(<4 x i16>* %A) nounwind {
+;CHECK: test_vrev32D16:
+;CHECK: vrev32.16
+ %tmp1 = load <4 x i16>* %A
+ %tmp2 = shufflevector <4 x i16> %tmp1, <4 x i16> undef, <4 x i32> <i32 1, i32 0, i32 3, i32 2>
+ ret <4 x i16> %tmp2
+}
+
+define arm_apcscc <16 x i8> @test_vrev32Q8(<16 x i8>* %A) nounwind {
+;CHECK: test_vrev32Q8:
+;CHECK: vrev32.8
+ %tmp1 = load <16 x i8>* %A
+ %tmp2 = shufflevector <16 x i8> %tmp1, <16 x i8> undef, <16 x i32> <i32 3, i32 2, i32 1, i32 0, i32 7, i32 6, i32 5, i32 4, i32 11, i32 10, i32 9, i32 8, i32 15, i32 14, i32 13, i32 12>
+ ret <16 x i8> %tmp2
+}
+
+define arm_apcscc <8 x i16> @test_vrev32Q16(<8 x i16>* %A) nounwind {
+;CHECK: test_vrev32Q16:
+;CHECK: vrev32.16
+ %tmp1 = load <8 x i16>* %A
+ %tmp2 = shufflevector <8 x i16> %tmp1, <8 x i16> undef, <8 x i32> <i32 1, i32 0, i32 3, i32 2, i32 5, i32 4, i32 7, i32 6>
+ ret <8 x i16> %tmp2
+}
+
+define arm_apcscc <8 x i8> @test_vrev16D8(<8 x i8>* %A) nounwind {
+;CHECK: test_vrev16D8:
+;CHECK: vrev16.8
+ %tmp1 = load <8 x i8>* %A
+ %tmp2 = shufflevector <8 x i8> %tmp1, <8 x i8> undef, <8 x i32> <i32 1, i32 0, i32 3, i32 2, i32 5, i32 4, i32 7, i32 6>
+ ret <8 x i8> %tmp2
+}
+
+define arm_apcscc <16 x i8> @test_vrev16Q8(<16 x i8>* %A) nounwind {
+;CHECK: test_vrev16Q8:
+;CHECK: vrev16.8
+ %tmp1 = load <16 x i8>* %A
+ %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
+}