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Move transformation of JmpLink and related nodes done during instruction selection to Legalize phase.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128830 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka
2011-04-04 17:11:07 +00:00
parent cf3a74824f
commit f49fde2877
2 changed files with 27 additions and 59 deletions
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28
lib/Target/Mips/MipsISelLowering.cpp
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@@ -1201,12 +1201,34 @@ MipsTargetLowering::LowerCall(SDValue Chain, SDValue Callee,
// direct call is) turn it into a TargetGlobalAddress/TargetExternalSymbol
// node so that legalize doesn't hack it.
unsigned char OpFlag = IsPIC ? MipsII::MO_GOT_CALL : MipsII::MO_NO_FLAG;
if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee))
bool LoadSymAddr = false;
if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee)) {
Callee = DAG.getTargetGlobalAddress(G->getGlobal(), dl,
getPointerTy(), 0, OpFlag);
else if (ExternalSymbolSDNode *S = dyn_cast<ExternalSymbolSDNode>(Callee))
getPointerTy(), 0, OpFlag);
LoadSymAddr = true;
}
else if (ExternalSymbolSDNode *S = dyn_cast<ExternalSymbolSDNode>(Callee)) {
Callee = DAG.getTargetExternalSymbol(S->getSymbol(),
getPointerTy(), OpFlag);
LoadSymAddr = true;
}
// Create nodes that load address of callee and copy it to T9
if (IsPIC) {
if (LoadSymAddr) {
// load callee address
Callee = DAG.getLoad(MVT::i32, dl, Chain, Callee,
MachinePointerInfo::getGOT(),
false, false, 0);
Chain = Callee.getValue(1);
}
// copy to T9
Chain = DAG.getCopyToReg(Chain, dl, Mips::T9, Callee, SDValue(0, 0));
InFlag = Chain.getValue(1);
Callee = DAG.getRegister(Mips::T9, MVT::i32);
}
// MipsJmpLink = #chain, #target_address, #opt_in_flags...
// = Chain, Callee, Reg#1, Reg#2, ...