diff options
| 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 | 67a69dd2ed4400c34aef8e4fcfb783dfa602e9db (patch) | |
| tree | fb5de0965758383bd7fc0d55e02f3025e1c7168b /llvm/lib/Target/SystemZ/SystemZISelLowering.cpp | |
| parent | d10089a5b4e1562a0fefbb3a707005edf8c47683 (diff) | |
| download | bcm5719-llvm-67a69dd2ed4400c34aef8e4fcfb783dfa602e9db.tar.gz bcm5719-llvm-67a69dd2ed4400c34aef8e4fcfb783dfa602e9db.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.
llvm-svn: 94626
Diffstat (limited to 'llvm/lib/Target/SystemZ/SystemZISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZISelLowering.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp index d6b476e5ea9..f7405a52deb 100644 --- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp +++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp @@ -250,11 +250,13 @@ SystemZTargetLowering::LowerFormalArguments(SDValue Chain, SDValue SystemZTargetLowering::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) { + // SystemZ target does not yet support tail call optimization. + isTailCall = false; switch (CallConv) { default: |
