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390e5c25aa
Summary: We were trying to add APInt values with different bit sizes after visiting an addrspacecast instruction which changed the bit width of the pointer. Reviewers: majnemer, hfinkel Subscribers: hfinkel, wdng, llvm-commits Differential Revision: https://reviews.llvm.org/D24774 llvm-svn: 285407
22 lines
722 B
LLVM
22 lines
722 B
LLVM
; RUN: opt < %s -licm -S | FileCheck %s
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target datalayout = "e-p:32:32-p1:64:64-p4:64:64"
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; Make sure isDereferenceableAndAlignePointer() doesn't crash when looking
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; walking pointer defs with an addrspacecast that changes pointer size.
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; CHECK-LABEL: @addrspacecast_crash
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define void @addrspacecast_crash() {
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bb:
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%tmp = alloca [256 x i32]
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br label %bb1
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bb1:
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%tmp2 = getelementptr inbounds [256 x i32], [256 x i32]* %tmp, i32 0, i32 36
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%tmp3 = bitcast i32* %tmp2 to <4 x i32>*
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%tmp4 = addrspacecast <4 x i32>* %tmp3 to <4 x i32> addrspace(4)*
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%tmp5 = load <4 x i32>, <4 x i32> addrspace(4)* %tmp4
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%tmp6 = xor <4 x i32> %tmp5, undef
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store <4 x i32> %tmp6, <4 x i32> addrspace(1)* undef
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br label %bb1
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}
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