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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/Blackfin | |
| 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/Blackfin')
| -rw-r--r-- | lib/Target/Blackfin/BlackfinISelLowering.cpp | 4 | ||||
| -rw-r--r-- | lib/Target/Blackfin/BlackfinISelLowering.h | 2 |
2 files changed, 4 insertions, 2 deletions
diff --git a/lib/Target/Blackfin/BlackfinISelLowering.cpp b/lib/Target/Blackfin/BlackfinISelLowering.cpp index ad2510a..269707a 100644 --- a/lib/Target/Blackfin/BlackfinISelLowering.cpp +++ b/lib/Target/Blackfin/BlackfinISelLowering.cpp @@ -273,11 +273,13 @@ BlackfinTargetLowering::LowerReturn(SDValue Chain, SDValue BlackfinTargetLowering::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) { + // Blackfin target does not yet support tail call optimization. + isTailCall = false; // Analyze operands of the call, assigning locations to each operand. SmallVector<CCValAssign, 16> ArgLocs; diff --git a/lib/Target/Blackfin/BlackfinISelLowering.h b/lib/Target/Blackfin/BlackfinISelLowering.h index cdbc7d2..5f39910 100644 --- a/lib/Target/Blackfin/BlackfinISelLowering.h +++ b/lib/Target/Blackfin/BlackfinISelLowering.h @@ -64,7 +64,7 @@ namespace llvm { SmallVectorImpl<SDValue> &InVals); 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, |