diff options
| author | Venkatraman Govindaraju <venkatra@cs.wisc.edu> | 2011-01-12 03:18:21 +0000 |
|---|---|---|
| committer | Venkatraman Govindaraju <venkatra@cs.wisc.edu> | 2011-01-12 03:18:21 +0000 |
| commit | 7d29ffbe5b091fae03afd264d8c8b0090c7a45f4 (patch) | |
| tree | d4e4f25b4f37226a2084330da98e01ab4977a64d /lib/Target/Sparc/SparcISelLowering.cpp | |
| parent | d2e905027b3774bbc29562a5e3f64ad46bf6b0b8 (diff) | |
Fix SPARC backend call instruction so that arguments passed through registers
are correctly marked as used instead of passing all possible argument registers
as used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123301 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Sparc/SparcISelLowering.cpp')
| -rw-r--r-- | lib/Target/Sparc/SparcISelLowering.cpp | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/lib/Target/Sparc/SparcISelLowering.cpp b/lib/Target/Sparc/SparcISelLowering.cpp index 27e78f07da..ec8c7b4809 100644 --- a/lib/Target/Sparc/SparcISelLowering.cpp +++ b/lib/Target/Sparc/SparcISelLowering.cpp @@ -1,3 +1,4 @@ + //===-- SparcISelLowering.cpp - Sparc DAG Lowering Implementation ---------===// // // The LLVM Compiler Infrastructure @@ -514,11 +515,22 @@ SparcTargetLowering::LowerCall(SDValue Chain, SDValue Callee, else if (ExternalSymbolSDNode *E = dyn_cast<ExternalSymbolSDNode>(Callee)) Callee = DAG.getTargetExternalSymbol(E->getSymbol(), MVT::i32); - std::vector<EVT> NodeTys; - NodeTys.push_back(MVT::Other); // Returns a chain - NodeTys.push_back(MVT::Glue); // Returns a flag for retval copy to use. - SDValue Ops[] = { Chain, Callee, InFlag }; - Chain = DAG.getNode(SPISD::CALL, dl, NodeTys, Ops, InFlag.getNode() ? 3 : 2); + // Returns a chain & a flag for retval copy to use + SDVTList NodeTys = DAG.getVTList(MVT::Other, MVT::Glue); + SmallVector<SDValue, 8> Ops; + Ops.push_back(Chain); + Ops.push_back(Callee); + for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) { + unsigned Reg = RegsToPass[i].first; + if (Reg >= SP::I0 && Reg <= SP::I7) + Reg = Reg-SP::I0+SP::O0; + + Ops.push_back(DAG.getRegister(Reg, RegsToPass[i].second.getValueType())); + } + if (InFlag.getNode()) + Ops.push_back(InFlag); + + Chain = DAG.getNode(SPISD::CALL, dl, NodeTys, &Ops[0], Ops.size()); InFlag = Chain.getValue(1); Chain = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(ArgsSize, true), |