29 lines
1.2 KiB
LLVM
29 lines
1.2 KiB
LLVM
; RUN: llc < %s -o /dev/null
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;
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; Test that we dont get a crash after an invalid build_vector combine.
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;
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target triple = "aarch64-unknown-linux-gnu"
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define void @test_crash(i8* %dst_ptr) {
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entry:
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%vec_load = load <4 x i16>, <4 x i16>* undef, align 8
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%0 = sext <4 x i16> %vec_load to <4 x i32>
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%add71vec = add nsw <4 x i32> %0, <i32 32, i32 32, i32 32, i32 32>
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%add104vec = add nsw <4 x i32> %add71vec, zeroinitializer
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%add105vec = add nsw <4 x i32> zeroinitializer, %add104vec
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%vec = lshr <4 x i32> %add105vec, <i32 6, i32 6, i32 6, i32 6>
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%1 = trunc <4 x i32> %vec to <4 x i16>
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%2 = shufflevector <4 x i16> %1, <4 x i16> undef, <2 x i32> <i32 1, i32 2>
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%3 = sext <2 x i16> %2 to <2 x i32>
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%4 = bitcast i8* %dst_ptr to <4 x i8>*
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%5 = shufflevector <2 x i32> %3, <2 x i32> poison, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
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%6 = shufflevector <4 x i32> undef, <4 x i32> %5, <4 x i32> <i32 0, i32 4, i32 5, i32 undef>
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%7 = insertelement <4 x i32> %6, i32 undef, i64 3
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%8 = add nsw <4 x i32> %7, zeroinitializer
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%9 = select <4 x i1> zeroinitializer, <4 x i32> %8, <4 x i32> undef
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%10 = trunc <4 x i32> %9 to <4 x i8>
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store <4 x i8> %10, <4 x i8>* %4, align 1
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ret void
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}
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