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Bug 31948: Fix assertion when bitcasting constantexpr pointers 

llvm-svn: 295387
This commit is contained in:
Matt Arsenault 2017-02-17 00:32:19 +00:00
parent 8960686927
commit c18b67745b
4 changed files with 32 additions and 0 deletions
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6
llvm/lib/Transforms/Scalar/InferAddressSpaces.cpp
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@ -448,6 +448,12 @@ static Value *cloneConstantExprWithNewAddressSpace(
return ConstantExpr::getBitCast(CE->getOperand(0), TargetType);
}
if (CE->getOpcode() == Instruction::BitCast) {
if (Value *NewOperand = ValueWithNewAddrSpace.lookup(CE->getOperand(0)))
return ConstantExpr::getBitCast(cast<Constant>(NewOperand), TargetType);
return ConstantExpr::getAddrSpaceCast(CE, TargetType);
}
if (CE->getOpcode() == Instruction::Select) {
Constant *Src0 = CE->getOperand(1);
Constant *Src1 = CE->getOperand(2);

0
llvm/test/Transforms/InferAddressSpaces/lit.local.cfg → llvm/test/Transforms/InferAddressSpaces/AMDGPU/lit.local.cfg
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24
llvm/test/Transforms/InferAddressSpaces/NVPTX/bug31948.ll Normal file
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@ -0,0 +1,24 @@
; RUN: opt -S -mtriple=nvptx64-nvidia-cuda -infer-address-spaces %s | FileCheck %s
target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64"
%struct.bar = type { float, float* }
@var1 = local_unnamed_addr addrspace(3) externally_initialized global %struct.bar undef, align 8
; CHECK-LABEL: @bug31948(
; CHECK: %tmp = load float*, float* addrspace(3)* getelementptr inbounds (%struct.bar, %struct.bar addrspace(3)* @var1, i64 0, i32 1), align 8
; CHECK: %tmp1 = load float, float* %tmp, align 4
; CHECK: store float %conv1, float* %tmp, align 4
; CHECK: store i32 32, i32 addrspace(3)* addrspacecast (i32* bitcast (float** getelementptr (%struct.bar, %struct.bar* addrspacecast (%struct.bar addrspace(3)* @var1 to %struct.bar*), i64 0, i32 1) to i32*) to i32 addrspace(3)*), align 4
define void @bug31948(float %a, float* nocapture readnone %x, float* nocapture readnone %y) local_unnamed_addr #0 {
entry:
%tmp = load float*, float** getelementptr (%struct.bar, %struct.bar* addrspacecast (%struct.bar addrspace(3)* @var1 to %struct.bar*), i64 0, i32 1), align 8
%tmp1 = load float, float* %tmp, align 4
%conv1 = fadd float %tmp1, 1.000000e+00
store float %conv1, float* %tmp, align 4
store i32 32, i32* bitcast (float** getelementptr (%struct.bar, %struct.bar* addrspacecast (%struct.bar addrspace(3)* @var1 to %struct.bar*), i64 0, i32 1) to i32*), align 4
ret void
}
attributes #0 = { norecurse nounwind }

2
llvm/test/Transforms/InferAddressSpaces/NVPTX/lit.local.cfg Normal file
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@ -0,0 +1,2 @@
if not 'NVPTX' in config.root.targets:
config.unsupported = True