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Put BlockAddresses into ARM constant pools.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85824 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson 2009-11-02 20:59:23 +00:00
parent 60131c0d0b
commit 907eebd5a6
4 changed files with 19 additions and 5 deletions
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21
lib/Target/ARM/ARMISelLowering.cpp
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@ -1209,9 +1209,26 @@ static SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG) {
SDValue ARMTargetLowering::LowerBlockAddress(SDValue Op, SelectionDAG &DAG) {
DebugLoc DL = Op.getDebugLoc();
EVT PtrVT = getPointerTy();
BlockAddress *BA = cast<BlockAddressSDNode>(Op)->getBlockAddress();
SDValue Result = DAG.getBlockAddress(BA, DL, /*isTarget=*/true);
return DAG.getNode(ARMISD::Wrapper, DL, getPointerTy(), Result);
Reloc::Model RelocM = getTargetMachine().getRelocationModel();
SDValue CPAddr;
if (RelocM == Reloc::Static) {
CPAddr = DAG.getTargetConstantPool(BA, PtrVT, 4);
} else {
unsigned PCAdj = Subtarget->isThumb() ? 4 : 8;
ARMConstantPoolValue *CPV = new ARMConstantPoolValue(BA, ARMPCLabelIndex,
ARMCP::CPBlockAddress,
PCAdj);
CPAddr = DAG.getTargetConstantPool(CPV, PtrVT, 4);
}
CPAddr = DAG.getNode(ARMISD::Wrapper, DL, PtrVT, CPAddr);
SDValue Result = DAG.getLoad(PtrVT, DL, DAG.getEntryNode(), CPAddr,
PseudoSourceValue::getConstantPool(), 0);
if (RelocM == Reloc::Static)
return Result;
SDValue PICLabel = DAG.getConstant(ARMPCLabelIndex++, MVT::i32);
return DAG.getNode(ARMISD::PIC_ADD, DL, PtrVT, Result, PICLabel);
}
// Lower ISD::GlobalTLSAddress using the "general dynamic" model

1
lib/Target/ARM/ARMInstrInfo.td
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@ -1607,7 +1607,6 @@ let Defs =
// ConstantPool, GlobalAddress, and JumpTable
def : ARMPat<(ARMWrapper tglobaladdr :$dst), (LEApcrel tglobaladdr :$dst)>;
def : ARMPat<(ARMWrapper tconstpool :$dst), (LEApcrel tconstpool :$dst)>;
def : ARMPat<(ARMWrapper tblockaddress:$dst), (LEApcrel tblockaddress:$dst)>;
def : ARMPat<(ARMWrapperJT tjumptable:$dst, imm:$id),
(LEApcrelJT tjumptable:$dst, imm:$id)>;

1
lib/Target/ARM/ARMInstrThumb.td
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@ -685,7 +685,6 @@ def : T1Pat<(subc tGPR:$lhs, tGPR:$rhs),
// ConstantPool, GlobalAddress
def : T1Pat<(ARMWrapper tglobaladdr :$dst), (tLEApcrel tglobaladdr :$dst)>;
def : T1Pat<(ARMWrapper tconstpool :$dst), (tLEApcrel tconstpool :$dst)>;
def : T1Pat<(ARMWrapper tblockaddress:$dst), (tLEApcrel tblockaddress:$dst)>;
// JumpTable
def : T1Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),

1
lib/Target/ARM/ARMInstrThumb2.td
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@ -1169,7 +1169,6 @@ def : T2Pat<(sub GPR:$LHS, t2_so_imm2part:$RHS),
// ConstantPool, GlobalAddress, and JumpTable
def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>;
def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
def : T2Pat<(ARMWrapper tblockaddress:$dst), (t2LEApcrel tblockaddress:$dst)>;
def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
(t2LEApcrelJT tjumptable:$dst, imm:$id)>;