================
@@ -8410,17 +8447,57 @@ AArch64TargetLowering::LowerCall(CallLoweringInfo &CLI,
InGlue = Chain.getValue(1);
}
+ unsigned Opc = IsTailCall ? AArch64ISD::TC_RETURN : AArch64ISD::CALL;
+
std::vector<SDValue> Ops;
Ops.push_back(Chain);
Ops.push_back(Callee);
+ // Calls with operand bundle "clang.arc.attachedcall" are special. They
should
+ // be expanded to the call, directly followed by a special marker sequence
and
+ // a call to an ObjC library function. Use CALL_RVMARKER to do that.
+ if (CLI.CB && objcarc::hasAttachedCallOpBundle(CLI.CB)) {
+ assert(!IsTailCall &&
+ "tail calls cannot be marked with clang.arc.attachedcall");
+ Opc = AArch64ISD::CALL_RVMARKER;
+
+ // Add a target global address for the retainRV/claimRV runtime function
+ // just before the call target.
+ Function *ARCFn = *objcarc::getAttachedARCFunction(CLI.CB);
+ auto GA = DAG.getTargetGlobalAddress(ARCFn, DL, PtrVT);
+ Ops.insert(Ops.begin() + 1, GA);
+ } else if (CallConv == CallingConv::ARM64EC_Thunk_X64) {
+ Opc = AArch64ISD::CALL_ARM64EC_TO_X64;
+ } else if (GuardWithBTI)
----------------
kovdan01 wrote:
Previous parts of if/else chain use braces, so use them here as well. See
https://llvm.org/docs/CodingStandards.html#don-t-use-braces-on-simple-single-statement-bodies-of-if-else-loop-statements:
> readability is also harmed if an if/else chain does not use braced bodies for
> either all or none of its members
https://github.com/llvm/llvm-project/pull/85736
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