6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-23 01:24:30 +00:00
Code Issues Projects Releases Wiki Activity

Added invariant field to the DAG.getLoad method and changed all calls.

Browse Source 
When this field is true it means that the load is from constant (runt-time or compile-time) and so can be hoisted from loops or moved around other memory accesses


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144100 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Pete Cooper
2011-11-08 18:42:53 +00:00
parent 30b4d8b83b
commit d752e0f7e6
26 changed files with 253 additions and 202 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
lib/Target/Mips/MipsISelLowering.cpp
View File

@ -1402,7 +1402,7 @@ SDValue MipsTargetLowering::LowerGlobalAddress(SDValue Op,
GA = DAG.getNode(MipsISD::WrapperPIC, dl, ValTy, GA);
SDValue ResNode = DAG.getLoad(ValTy, dl,
DAG.getEntryNode(), GA, MachinePointerInfo(),
false, false, 0);
false, false, false, 0);
// On functions and global targets not internal linked only
// a load from got/GP is necessary for PIC to work.
if (!HasGotOfst)
@ -1438,7 +1438,7 @@ SDValue MipsTargetLowering::LowerBlockAddress(SDValue Op,
MipsII::MO_ABS_LO);
SDValue Load = DAG.getLoad(MVT::i32, dl,
DAG.getEntryNode(), BAGOTOffset,
MachinePointerInfo(), false, false, 0);
MachinePointerInfo(), false, false, false, 0);
SDValue Lo = DAG.getNode(MipsISD::Lo, dl, MVT::i32, BALOOffset);
return DAG.getNode(ISD::ADD, dl, MVT::i32, Load, Lo);
}
@ -1485,7 +1485,7 @@ LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const
MipsII::MO_GOTTPREL);
Offset = DAG.getLoad(MVT::i32, dl,
DAG.getEntryNode(), TGA, MachinePointerInfo(),
false, false, 0);
false, false, false, 0);
} else {
// Local Exec TLS Model
SDVTList VTs = DAG.getVTList(MVT::i32);
@ -1524,7 +1524,7 @@ LowerJumpTable(SDValue Op, SelectionDAG &DAG) const
JTI = DAG.getNode(MipsISD::WrapperPIC, dl, MVT::i32, JTI);
HiPart = DAG.getLoad(MVT::i32, dl, DAG.getEntryNode(), JTI,
MachinePointerInfo(),
false, false, 0);
false, false, false, 0);
}
SDValue JTILo = DAG.getTargetJumpTable(JT->getIndex(), PtrVT,
@ -1568,7 +1568,7 @@ LowerConstantPool(SDValue Op, SelectionDAG &DAG) const
CP = DAG.getNode(MipsISD::WrapperPIC, dl, MVT::i32, CP);
SDValue Load = DAG.getLoad(MVT::i32, dl, DAG.getEntryNode(),
CP, MachinePointerInfo::getConstantPool(),
false, false, 0);
false, false, false, 0);
SDValue CPLo = DAG.getTargetConstantPool(C, MVT::i32, N->getAlignment(),
N->getOffset(), MipsII::MO_ABS_LO);
SDValue Lo = DAG.getNode(MipsISD::Lo, dl, MVT::i32, CPLo);
@ -1831,8 +1831,8 @@ WriteByValArg(SDValue& ByValChain, SDValue Chain, DebugLoc dl,
DAG.getConstant(Offset, MVT::i32));
SDValue LoadVal = DAG.getLoad(MVT::i32, dl, Chain, LoadPtr,
MachinePointerInfo(),
false, false, std::min(ByValAlign,
(unsigned )4));
false, false, false, std::min(ByValAlign,
(unsigned )4));
MemOpChains.push_back(LoadVal.getValue(1));
unsigned DstReg = O32IntRegs[LocMemOffset / 4];
RegsToPass.push_back(std::make_pair(DstReg, LoadVal));
@ -2119,7 +2119,7 @@ MipsTargetLowering::LowerCall(SDValue InChain, SDValue Callee,
Callee = DAG.getNode(MipsISD::WrapperPIC, dl, getPointerTy(), Callee);
SDValue LoadValue = DAG.getLoad(getPointerTy(), dl, DAG.getEntryNode(),
Callee, MachinePointerInfo::getGOT(),
false, false, 0);
false, false, false, 0);
// Use GOT+LO if callee has internal linkage.
if (CalleeLo.getNode()) {
@ -2350,7 +2350,7 @@ MipsTargetLowering::LowerFormalArguments(SDValue Chain,
SDValue FIN = DAG.getFrameIndex(LastFI, getPointerTy());
InVals.push_back(DAG.getLoad(ValVT, dl, Chain, FIN,
MachinePointerInfo::getFixedStack(LastFI),
false, false, 0));
false, false, false, 0));
}
}