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[sil-llvm-gen] Run Sema before we attempt to emit IR. #84622

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Oct 7, 2025
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[sil-llvm-gen] Run Sema before we attempt to emit IR. #84622

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9 changes: 9 additions & 0 deletions lib/DriverTool/sil_llvm_gen_main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -433,6 +433,15 @@ int sil_llvm_gen_main(ArrayRef<const char *> argv, void *MainAddr) {
desc.out = &outFile->getOS();

if (options.OutputKind == IRGenOutputKind::LLVMAssemblyBeforeOptimization) {
// We need to perform Sema here since IRGenRequest itself does not perform
// Sema (unlike OptimizedIRRequest).
CI.performSema();

// If Sema produced an error, exit early.
bool HadError = CI.getASTContext().hadError();
if (HadError)
exit(-1);

auto generatedMod = evaluateOrFatal(eval, IRGenRequest{desc});
if (!generatedMod)
return 1;
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