================
@@ -1706,7 +1706,12 @@ CIRGenFunction::emitX86BuiltinExpr(unsigned builtinID,
const CallExpr *expr) {
cir::SyncScopeKind::SingleThread));
return mlir::Value{};
}
- case X86::BI_AddressOfReturnAddress:
+ case X86::BI_AddressOfReturnAddress: {
+ mlir::Location loc = getLoc(expr->getExprLoc());
+ mlir::Value addr = emitIntrinsicCallOp(
+ builder, loc, "addressofreturnaddress", allocaInt8PtrTy);
----------------
Luhaocong wrote:
Done, but I have a question about do we need to consider the address space for
the returned pointer? I see CIR lowering for `__builtin_frame_address` ignores
address space completely:
**CIR CodeGen&Lowering:**
https://github.com/llvm/llvm-project/blob/9a03a30706cca40b93146f379fb5faa75d417af5/clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp#L882-L884
https://github.com/llvm/llvm-project/blob/9a03a30706cca40b93146f379fb5faa75d417af5/clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp#L1647-L1654
**Clang CodeGen:**
https://github.com/llvm/llvm-project/blob/c24f66e33bcbc82e40f5dd94cda12430dc819638/clang/lib/CodeGen/CGBuiltin.cpp#L4709-L4714
https://github.com/llvm/llvm-project/pull/171974
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