The ARM disassembler did not handle the alignment correctly for VLD*DUP* instructions

[oota-llvm.git] / test / CodeGen / ARM / vrev.ll

diff --git a/test/CodeGen/ARM/vrev.ll b/test/CodeGen/ARM/vrev.ll
index deed554d842c6bb72f26f7cede3169a95ab2ab83..f0f9e4e339b4294de9996632ffd6313e39beb5fd 100644 (file)
--- a/test/CodeGen/ARM/vrev.ll
+++ b/test/CodeGen/ARM/vrev.ll
@@ -111,3 +111,39 @@ define <16 x i8> @test_vrev16Q8(<16 x i8>* %A) nounwind {
        %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
+}
+
+; A vcombine feeding a VREV should not obscure things.  Radar 8597007.
+
+define void @test_with_vcombine(<4 x float>* %v) nounwind {
+;CHECK: test_with_vcombine:
+;CHECK-NOT: vext
+;CHECK: vrev64.32
+  %tmp1 = load <4 x float>* %v, align 16
+  %tmp2 = bitcast <4 x float> %tmp1 to <2 x double>
+  %tmp3 = extractelement <2 x double> %tmp2, i32 0
+  %tmp4 = bitcast double %tmp3 to <2 x float>
+  %tmp5 = extractelement <2 x double> %tmp2, i32 1
+  %tmp6 = bitcast double %tmp5 to <2 x float>
+  %tmp7 = fadd <2 x float> %tmp6, %tmp6
+  %tmp8 = shufflevector <2 x float> %tmp4, <2 x float> %tmp7, <4 x i32> <i32 1, i32 0, i32 3, i32 2>
+  store <4 x float> %tmp8, <4 x float>* %v, align 16
+  ret void
+}