================
@@ -198,6 +199,138 @@ static llvm::StringRef getPersonalityFn(CIRGenModule &cgm,
return personalityFn.getSymName();
}
+void CIRGenFunction::emitStartEHSpec(const Decl *d) {
+ if (!cgm.getLangOpts().CXXExceptions)
+ return;
+
+ const FunctionDecl *fd = dyn_cast_or_null<FunctionDecl>(d);
+ if (!fd) {
+ // This can't currently happen in CIR, but if we do get here, we need to
+ // handle the cd->isNoThrow() case.
+ if (const CapturedDecl *cd = dyn_cast_or_null<CapturedDecl>(d)) {
+ if (cd->isNothrow())
+ cgm.errorNYI(cd->getSourceRange(),
+ "emitStartEHSpec CapturedDecl nothrow");
+ }
+ return;
+ }
+
+ const FunctionProtoType *proto = fd->getType()->getAs<FunctionProtoType>();
+ if (!proto)
+ return;
+
+ ExceptionSpecificationType est = proto->getExceptionSpecType();
+ // In C++17 and later, 'throw()' aka EST_DynamicNone is treated the same way
+ // as noexcept. In earlier standards, it is handled with 'throw(X...)'.
+ if (est != EST_Dynamic &&
+ !(est == EST_DynamicNone && !getLangOpts().CPlusPlus17)) {
+ // noexcept functions are terminate scopes in classic codegen.
+ if (proto->canThrow() == CT_Cannot && !getLangOpts().EHAsynch)
+ cgm.errorNYI(fd->getSourceRange(),
+ "emitStartEHSpec noexcept terminate scope");
+ return;
+ }
+
+ // TODO: Revisit exception specifications for the MS ABI. There is a way
+ // to encode these in an object file but MSVC doesn't do anything with it.
+ if (getTarget().getCXXABI().isMicrosoft())
----------------
andykaylor wrote:
This TODO comment is copied from classic codegen.
https://github.com/llvm/llvm-project/pull/224375
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