diff options
Diffstat (limited to 'test/CodeGen/X86/pshufb-mask-comments.ll')
| -rw-r--r-- | test/CodeGen/X86/pshufb-mask-comments.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGen/X86/pshufb-mask-comments.ll b/test/CodeGen/X86/pshufb-mask-comments.ll index 7fc9890..ca5a02c 100644 --- a/test/CodeGen/X86/pshufb-mask-comments.ll +++ b/test/CodeGen/X86/pshufb-mask-comments.ll @@ -27,4 +27,26 @@ define <16 x i8> @test3(<16 x i8> %V) { ret <16 x i8> %1 } +; Test that we won't crash when the constant was reused for another instruction. + +define <16 x i8> @test4(<2 x i64>* %V) { +; CHECK-LABEL: test4 +; CHECK: pshufb {{.*}} + store <2 x i64> <i64 1084818905618843912, i64 506097522914230528>, <2 x i64>* %V, align 16 + %1 = tail call <16 x i8> @llvm.x86.ssse3.pshuf.b.128(<16 x i8> undef, <16 x i8> <i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15, i8 0, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7>) + ret <16 x i8> %1 +} + +define <16 x i8> @test5() { +; CHECK-LABEL: test5 +; CHECK: pshufb {{.*}} + store <2 x i64> <i64 1, i64 0>, <2 x i64>* undef, align 16 + %l = load <2 x i64>* undef, align 16 + %shuffle = shufflevector <2 x i64> %l, <2 x i64> undef, <2 x i32> zeroinitializer + store <2 x i64> %shuffle, <2 x i64>* undef, align 16 + %1 = load <16 x i8>* undef, align 16 + %2 = call <16 x i8> @llvm.x86.ssse3.pshuf.b.128(<16 x i8> undef, <16 x i8> %1) + ret <16 x i8> %2 +} + declare <16 x i8> @llvm.x86.ssse3.pshuf.b.128(<16 x i8>, <16 x i8>) nounwind readnone |