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Fix CPython interface in codegen

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This commit is contained in:
A. R. Shajii 2023-02-02 10:45:04 -05:00
parent 999e42664e
commit ef957c417a
1 changed files with 25 additions and 6 deletions
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31
codon/cir/llvm/llvisitor.cpp
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@ -610,16 +610,35 @@ llvm::Function *LLVMVisitor::createPyTryCatchWrapper(llvm::Function *func) {
auto *last = B->CreateInBoundsGEP(B->getInt8Ty(), buf, msgLen);
B->CreateStore(B->getInt8(0), last);
auto *pyErrSetString = M->getNamedValue("PyErr_SetString");
seqassertn(pyErrSetString, "'PyErr_SetString' not found in module");
auto *pyExcRuntimeError = M->getNamedValue("PyExc_RuntimeError");
seqassertn(pyExcRuntimeError, "'PyExc_RuntimeError' not found in module");
const std::string pyErrSetStringName = "PyErr_SetString";
llvm::Value *pyErrSetString = M->getNamedValue(pyErrSetStringName);
if (!pyErrSetString) {
pyErrSetString = llvm::cast<llvm::Function>(
M->getOrInsertFunction(pyErrSetStringName, B->getVoidTy(), B->getInt8PtrTy(),
B->getInt8PtrTy())
.getCallee());
} else {
pyErrSetString = B->CreateLoad(B->getInt8PtrTy(), pyErrSetString);
}
const std::string pyExcRuntimeErrorName = "PyExc_RuntimeError";
llvm::Value *pyExcRuntimeError = M->getNamedValue(pyExcRuntimeErrorName);
if (!pyExcRuntimeError) {
auto *pyExcRuntimeErrorVar = new llvm::GlobalVariable(
*M, B->getInt8PtrTy(), /*isConstant=*/false, llvm::GlobalValue::ExternalLinkage,
/*Initializer=*/nullptr, pyExcRuntimeErrorName);
pyExcRuntimeErrorVar->setDSOLocal(true);
pyExcRuntimeError = pyExcRuntimeErrorVar;
} else {
pyExcRuntimeError = B->CreateLoad(B->getInt8PtrTy(), pyExcRuntimeError);
}
B->CreateCall(llvm::FunctionCallee(
llvm::FunctionType::get(B->getVoidTy(),
{B->getInt8PtrTy(), B->getInt8PtrTy()},
/*isVarArg=*/false),
B->CreateLoad(B->getInt8PtrTy(), pyErrSetString)),
{B->CreateLoad(B->getInt8PtrTy(), pyExcRuntimeError), buf});
pyErrSetString),
{pyExcRuntimeError, buf});
B->CreateRet(llvm::Constant::getNullValue(wrap->getReturnType()));
return wrap;