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all this logic always returns true because GOT mode is never active in x86-64 mode.

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Simplify it away, someone should evaluate this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75100 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-07-09 04:27:47 +00:00
parent 88e1fd539e
commit 3fff30d471
1 changed files with 5 additions and 16 deletions
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21
lib/Target/X86/X86ISelLowering.cpp
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@ -2057,22 +2057,11 @@ bool X86TargetLowering::IsEligibleForTailCallOptimization(CallSDNode *TheCall,
return false;
if (CheckTailCallReturnConstraints(TheCall, Ret)) {
MachineFunction &MF = DAG.getMachineFunction();
unsigned CallerCC = MF.getFunction()->getCallingConv();
unsigned CalleeCC= TheCall->getCallingConv();
if (CalleeCC == CallingConv::Fast && CallerCC == CalleeCC) {
// On x86/32Bit PIC/GOT tail calls are supported.
if (getTargetMachine().getRelocationModel() != Reloc::PIC_ ||
!Subtarget->isPICStyleGOT() || !Subtarget->is64Bit())
return true;
SDValue Callee = TheCall->getCallee();
// Can only do local tail calls (in same module, hidden or protected) on
// x86_64 PIC/GOT at the moment.
if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee))
return G->getGlobal()->hasHiddenVisibility()
|| G->getGlobal()->hasProtectedVisibility();
}
unsigned CallerCC =
DAG.getMachineFunction().getFunction()->getCallingConv();
unsigned CalleeCC = TheCall->getCallingConv();
if (CalleeCC == CallingConv::Fast && CallerCC == CalleeCC)
return true;
}
return false;