}
bool X86TargetLowering::mayBeEmittedAsTailCall(CallInst *CI) const {
- if (!CI->isTailCall())
+ if (!CI->isTailCall() || getTargetMachine().Options.DisableTailCalls)
return false;
CallSite CS(CI);
bool IsStructRet = CallIsStructReturn(Outs);
bool IsSibcall = false;
+ if (MF.getTarget().Options.DisableTailCalls)
+ isTailCall = false;
+
if (isTailCall) {
// Check if it's really possible to do a tail call.
isTailCall = IsEligibleForTailCallOptimization(Callee, CallConv,