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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 | 6b6ed5994d4c2be6e2087a969b35f55226d82608 (patch) | |
| tree | 0900b4bd1e1489b3e42021affea56810029efa23 /lib/Target/PIC16 | |
| parent | e81b7948258c692cccbc3c38905e9f12de96d8bd (diff) | |
| download | external_llvm-6b6ed5994d4c2be6e2087a969b35f55226d82608.zip external_llvm-6b6ed5994d4c2be6e2087a969b35f55226d82608.tar.gz external_llvm-6b6ed5994d4c2be6e2087a969b35f55226d82608.tar.bz2 | |
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/PIC16')
| -rw-r--r-- | lib/Target/PIC16/PIC16ISelLowering.cpp | 4 | ||||
| -rw-r--r-- | lib/Target/PIC16/PIC16ISelLowering.h | 2 |
2 files changed, 4 insertions, 2 deletions
diff --git a/lib/Target/PIC16/PIC16ISelLowering.cpp b/lib/Target/PIC16/PIC16ISelLowering.cpp index 9f093e8..7754a4f 100644 --- a/lib/Target/PIC16/PIC16ISelLowering.cpp +++ b/lib/Target/PIC16/PIC16ISelLowering.cpp @@ -1355,11 +1355,13 @@ GetDataAddress(DebugLoc dl, SDValue Callee, SDValue &Chain, SDValue PIC16TargetLowering::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) { + // PIC16 target does not yet support tail call optimization. + isTailCall = false; assert(Callee.getValueType() == MVT::i16 && "Don't know how to legalize this call node!!!"); diff --git a/lib/Target/PIC16/PIC16ISelLowering.h b/lib/Target/PIC16/PIC16ISelLowering.h index afdd4b4..de14520 100644 --- a/lib/Target/PIC16/PIC16ISelLowering.h +++ b/lib/Target/PIC16/PIC16ISelLowering.h @@ -143,7 +143,7 @@ namespace llvm { virtual SDValue LowerCall(SDValue Chain, SDValue Callee, - CallingConv::ID CallConv, bool isVarArg, bool isTailCall, + CallingConv::ID CallConv, bool isVarArg, bool &isTailCall, const SmallVectorImpl<ISD::OutputArg> &Outs, const SmallVectorImpl<ISD::InputArg> &Ins, DebugLoc dl, SelectionDAG &DAG, |