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Fixed code generation when dereferencing a null constant

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This commit is contained in:
Brian Fiete 2020-05-10 06:32:15 -07:00
parent d42cbbb6a9
commit 5de6373b99
1 changed files with 9 additions and 0 deletions
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9
IDEHelper/Backend/BeMCContext.cpp
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@ -2753,6 +2753,15 @@ BeMCOperand BeMCContext::CreateCall(const BeMCOperand &func, const SizedArrayImp
BeMCOperand BeMCContext::CreateLoad(const BeMCOperand& mcTarget) BeMCOperand BeMCContext::CreateLoad(const BeMCOperand& mcTarget)
{ {
if (mcTarget.mKind == BeMCOperandKind_Immediate_Null)
{
auto fakeType = GetType(mcTarget);
auto fakePtr = AllocVirtualReg(fakeType);
CreateDefineVReg(fakePtr);
AllocInst(BeMCInstKind_Mov, fakePtr, BeMCOperand::FromImmediate(0));
return CreateLoad(fakePtr);
}
BeMCOperand result; BeMCOperand result;
auto loadedTarget = BeMCOperand::ToLoad(mcTarget); auto loadedTarget = BeMCOperand::ToLoad(mcTarget);