================
@@ -400,6 +400,14 @@ void AVRToolChain::AddClangSystemIncludeArgs(const ArgList
&DriverArgs,
void AVRToolChain::addClangTargetOptions(
const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args,
Action::OffloadKind DeviceOffloadKind) const {
+ // Reject C/C++ compilation for avr1 devices.
+ const Driver &D = getDriver();
+ std::string CPU = getCPUName(D, DriverArgs, getTriple());
+ std::optional<StringRef> FamilyName = GetMCUFamilyName(CPU);
+ if (CPU == "avr1" || (FamilyName && FamilyName->compare("avr1") == 0))
+ D.Diag(diag::err_drv_opt_unsupported_input_type) << "avr1"
+ << "c/c++";
----------------
benshi001 wrote:
Since `-mmcu` is the only way to trigger this issue, I have updated my error
message to `'-mmcu=attiny11' invalid for input of type c/c++`
https://github.com/llvm/llvm-project/pull/111798
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