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
diff --git a/lib/Target/Sparc/SparcISelLowering.cpp b/lib/Target/Sparc/SparcISelLowering.cpp
index 27e78f0..ec8c7b4 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 @@
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),