================
@@ -5133,6 +5133,135 @@ RValue CodeGenFunction::EmitBuiltinExpr(const
GlobalDecl GD, unsigned BuiltinID,
Builder.SetInsertPoint(ContBB);
return RValue::get(nullptr);
}
+ case Builtin::BI__scoped_atomic_thread_fence: {
+ auto ScopeModel = AtomicScopeModel::create(AtomicScopeModelKind::Generic);
+
+ Value *Order = EmitScalarExpr(E->getArg(0));
+ Value *Scope = EmitScalarExpr(E->getArg(1));
+ if (isa<llvm::ConstantInt>(Order) && isa<llvm::ConstantInt>(Scope)) {
+ int Ord = cast<llvm::ConstantInt>(Order)->getZExtValue();
+ int Scp = cast<llvm::ConstantInt>(Scope)->getZExtValue();
----------------
jhuber6 wrote:
All the atomic builtins do case expansion when the argument is not a constant,
it can't be an error to have non-constant arguments because that's how
`std::atomic` works AFAIK.
https://github.com/llvm/llvm-project/pull/115545
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