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rustc_llvm: adapt to flattened CLI args in LLVM #130446

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Merged
merged 2 commits into from
Sep 22, 2024
Merged

rustc_llvm: adapt to flattened CLI args in LLVM #130446

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ad0eceb
rustc_llvm: adapt to flattened CLI args in LLVM
durin42 Sep 16, 2024
86d67b7
PassWrapper: clang-format has spoken
durin42 Sep 17, 2024
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20 changes: 19 additions & 1 deletion compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -498,6 +498,22 @@ extern "C" LLVMTargetMachineRef LLVMRustCreateTargetMachine(
Options.EmitStackSizeSection = EmitStackSizeSection;

if (ArgsCstrBuff != nullptr) {
#if LLVM_VERSION_GE(20, 0)
int buffer_offset = 0;
assert(ArgsCstrBuff[ArgsCstrBuffLen - 1] == '\0');
auto Arg0 = std::string(ArgsCstrBuff);
buffer_offset = Arg0.size() + 1;
auto ArgsCppStr =
std::string(ArgsCstrBuff + buffer_offset, ArgsCstrBuffLen - 1);
auto i = 0;
while (i != std::string::npos) {
i = ArgsCppStr.find('\0', i + 1);
if (i != std::string::npos)
ArgsCppStr.replace(i, i + 1, " ");
}
Options.MCOptions.Argv0 = Arg0;
Options.MCOptions.CommandlineArgs = ArgsCppStr;
#else
int buffer_offset = 0;
assert(ArgsCstrBuff[ArgsCstrBuffLen - 1] == '\0');

Expand All @@ -523,6 +539,7 @@ extern "C" LLVMTargetMachineRef LLVMRustCreateTargetMachine(
Options.MCOptions.Argv0 = arg0;
Options.MCOptions.CommandLineArgs =
llvm::ArrayRef<std::string>(cmd_arg_strings, num_cmd_arg_strings);
#endif
}

TargetMachine *TM = TheTarget->createTargetMachine(
Expand All @@ -531,10 +548,11 @@ extern "C" LLVMTargetMachineRef LLVMRustCreateTargetMachine(
}

extern "C" void LLVMRustDisposeTargetMachine(LLVMTargetMachineRef TM) {

#if LLVM_VERSION_LT(20, 0)
MCTargetOptions &MCOptions = unwrap(TM)->Options.MCOptions;
delete[] MCOptions.Argv0;
delete[] MCOptions.CommandLineArgs.data();
#endif

delete unwrap(TM);
}
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