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| author | Evan Cheng <evan.cheng@apple.com> | 2010-01-27 00:07:07 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-01-27 00:07:07 +0000 |
| commit | 0c439eb2c8397996cbccaf2798e598052d9982c8 (patch) | |
| tree | 0900b4bd1e1489b3e42021affea56810029efa23 /lib/Target/PowerPC/PPCISelLowering.cpp | |
| parent | 381993f1f2f947fcdaec814181a735091b22fcba (diff) | |
| download | external_llvm-0c439eb2c8397996cbccaf2798e598052d9982c8.tar.gz external_llvm-0c439eb2c8397996cbccaf2798e598052d9982c8.tar.bz2 external_llvm-0c439eb2c8397996cbccaf2798e598052d9982c8.zip | |
Eliminate target hook IsEligibleForTailCallOptimization.
Target independent isel should always pass along the "tail call" property. Change
target hook LowerCall's parameter "isTailCall" into a refernce. If the target
decides it's impossible to honor the tail call request, it should set isTailCall
to false to make target independent isel happy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94626 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPCISelLowering.cpp')
| -rw-r--r-- | lib/Target/PowerPC/PPCISelLowering.cpp | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp index 8248c9475e..5219cb73a0 100644 --- a/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/lib/Target/PowerPC/PPCISelLowering.cpp @@ -2673,11 +2673,15 @@ PPCTargetLowering::FinishCall(CallingConv::ID CallConv, DebugLoc dl, SDValue PPCTargetLowering::LowerCall(SDValue Chain, SDValue Callee, CallingConv::ID CallConv, bool isVarArg, - bool isTailCall, + bool &isTailCall, const SmallVectorImpl<ISD::OutputArg> &Outs, const SmallVectorImpl<ISD::InputArg> &Ins, DebugLoc dl, SelectionDAG &DAG, SmallVectorImpl<SDValue> &InVals) { + if (isTailCall) + isTailCall = IsEligibleForTailCallOptimization(Callee, CallConv, isVarArg, + Ins, DAG); + if (PPCSubTarget.isSVR4ABI() && !PPCSubTarget.isPPC64()) { return LowerCall_SVR4(Chain, Callee, CallConv, isVarArg, isTailCall, Outs, Ins, @@ -2700,10 +2704,6 @@ PPCTargetLowering::LowerCall_SVR4(SDValue Chain, SDValue Callee, // See PPCTargetLowering::LowerFormalArguments_SVR4() for a description // of the 32-bit SVR4 ABI stack frame layout. - assert((!isTailCall || - (CallConv == CallingConv::Fast && PerformTailCallOpt)) && - "IsEligibleForTailCallOptimization missed a case!"); - assert((CallConv == CallingConv::C || CallConv == CallingConv::Fast) && "Unknown calling convention!"); |