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Fixing TryMemCpy

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This commit is contained in:
Brian Fiete 2020-08-12 05:33:42 -07:00
parent 858cca5bec
commit cdf5f3b03b
1 changed files with 8 additions and 7 deletions
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11
IDEHelper/Compiler/BfIRCodeGen.cpp
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@ -1051,8 +1051,6 @@ void BfIRCodeGen::AddNop()
bool BfIRCodeGen::TryMemCpy(llvm::Value* ptr, llvm::Value* val)
{
return false;
auto arrayType = llvm::dyn_cast<llvm::ArrayType>(val->getType());
if (arrayType == NULL)
return false;
@ -1062,8 +1060,11 @@ bool BfIRCodeGen::TryMemCpy(llvm::Value* ptr, llvm::Value* val)
return false;
auto int8Ty = llvm::Type::getInt8Ty(*mLLVMContext);
auto int32Ty = llvm::Type::getInt32Ty(*mLLVMContext);
auto int8PtrTy = int8Ty->getPointerTo();
int arrayBytes = arrayType->getScalarSizeInBits() / 8;
auto dataLayout = llvm::DataLayout(mLLVMModule);
int arrayBytes = (int)dataLayout.getTypeSizeInBits(arrayType) / 8;
if (auto loadInst = llvm::dyn_cast<llvm::LoadInst>(val))
{
@ -1072,7 +1073,7 @@ bool BfIRCodeGen::TryMemCpy(llvm::Value* ptr, llvm::Value* val)
1,
mIRBuilder->CreateBitCast(loadInst->getPointerOperand(), int8PtrTy),
1,
llvm::ConstantInt::get(int8Ty, arrayBytes));
llvm::ConstantInt::get(int32Ty, arrayBytes));
return true;
}
@ -1095,7 +1096,7 @@ bool BfIRCodeGen::TryMemCpy(llvm::Value* ptr, llvm::Value* val)
1,
mIRBuilder->CreateBitCast(globalVariable, int8PtrTy),
1,
llvm::ConstantInt::get(int8Ty, arrayBytes));
llvm::ConstantInt::get(int32Ty, arrayBytes));
return true;
}