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Linux GOT indirect reference is only necessary in PIC mode.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33441 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2007-01-22 21:34:25 +00:00
parent d44ecd86e7
commit 706535db86
3 changed files with 5 additions and 3 deletions
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3
lib/Target/X86/X86ISelDAGToDAG.cpp
View File

@ -947,7 +947,8 @@ SDNode *X86DAGToDAGISel::getGlobalBaseReg() {
// If we're using vanilla 'GOT' PIC style, we should use relative addressing
// not to pc, but to _GLOBAL_ADDRESS_TABLE_ external
if (Subtarget->isPICStyleGOT()) {
if (TM.getRelocationModel() == Reloc::PIC_ &&
Subtarget->isPICStyleGOT()) {
GlobalBaseReg = RegMap->createVirtualRegister(X86::GR32RegisterClass);
BuildMI(FirstMBB, MBBI, TII->get(X86::ADD32ri), GlobalBaseReg).
addReg(PC).

3
lib/Target/X86/X86ISelLowering.cpp
View File

@ -664,7 +664,8 @@ SDOperand X86TargetLowering::LowerCCCCallTo(SDOperand Op, SelectionDAG &DAG) {
InFlag = Chain.getValue(1);
}
if (Subtarget->isPICStyleGOT()) {
if (getTargetMachine().getRelocationModel() == Reloc::PIC_ &&
Subtarget->isPICStyleGOT()) {
Chain = DAG.getCopyToReg(Chain, X86::EBX,
DAG.getNode(X86ISD::GlobalBaseReg, getPointerTy()),
InFlag);

2
lib/Target/X86/X86Subtarget.cpp
View File

@ -40,7 +40,7 @@ bool X86Subtarget::GVRequiresExtraLoad(const GlobalValue* GV,
return (!isDirectCall &&
(GV->hasWeakLinkage() || GV->hasLinkOnceLinkage() ||
(GV->isExternal() && !GV->hasNotBeenReadFromBytecode())));
} else if (isPICStyleGOT()) {
} else if (TM.getRelocationModel() == Reloc::PIC_ && isPICStyleGOT()) {
// Extra load is needed for all non-statics.
return (!isDirectCall &&
(GV->isExternal() || !GV->hasInternalLinkage()));