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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-01-26 15:50:20 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-01-26 15:50:20 +0000 |
| commit | f531cf8964c2d0e49a35bf4f05478b498b2a5fd4 (patch) | |
| tree | b45f0b4505402241f8c3dae4c51aa55954c9bd30 /llvm/test | |
| parent | 0b4eb1ead18e437b3f630bf3f4c082adab417170 (diff) | |
| download | bcm5719-llvm-f531cf8964c2d0e49a35bf4f05478b498b2a5fd4.tar.gz bcm5719-llvm-f531cf8964c2d0e49a35bf4f05478b498b2a5fd4.zip | |
[DAGCombine] reduceBuildVecToShuffle - ensure EXTRACT_VECTOR_ELT index is in range
From OSS Fuzz Test Case #5688
llvm-svn: 323535
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/X86/buildvec-insertvec.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/buildvec-insertvec.ll b/llvm/test/CodeGen/X86/buildvec-insertvec.ll index dac5976dbec..b96233aa788 100644 --- a/llvm/test/CodeGen/X86/buildvec-insertvec.ll +++ b/llvm/test/CodeGen/X86/buildvec-insertvec.ll @@ -556,3 +556,18 @@ define <16 x i8> @test_buildvector_v16i8_register_zero_2(i8 %a2, i8 %a3, i8 %a6, %ins15 = insertelement <16 x i8> %ins14, i8 %a15, i32 15 ret <16 x i8> %ins15 } + +; OSS-Fuzz #5688 +; https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5688 +define <4 x i32> @ossfuzz5688(i32 %a0) { +; CHECK-LABEL: ossfuzz5688: +; CHECK: # %bb.0: +; CHECK-NEXT: retq + %1 = insertelement <4 x i32> zeroinitializer, i32 -2147483648, i32 %a0 + %2 = extractelement <4 x i32> %1, i32 %a0 + %3 = extractelement <4 x i32> <i32 30, i32 53, i32 42, i32 12>, i32 %2 + %4 = extractelement <4 x i32> zeroinitializer, i32 %2 + %5 = insertelement <4 x i32> undef, i32 %3, i32 undef + store i32 %4, i32* undef + ret <4 x i32> %5 +} |
