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Refactor duplicated code. NFC. 

llvm-svn: 273595
This commit is contained in:
Rafael Espindola 2016-06-23 18:43:06 +00:00
parent a21a263101
commit 53fd425e06
1 changed files with 17 additions and 20 deletions
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37
llvm/lib/Target/PowerPC/PPCISelLowering.cpp
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@ -4280,23 +4280,28 @@ PrepareCall(SelectionDAG &DAG, SDValue &Callee, SDValue &InFlag, SDValue &Chain,
needIndirectCall = false;
}
// PC-relative references to external symbols should go through $stub, unless
// we're building with the leopard linker or later, which automatically
// synthesizes these stubs.
Reloc::Model RM = DAG.getTarget().getRelocationModel();
const Triple &TargetTriple = Subtarget.getTargetTriple();
bool OldMachOLinker =
TargetTriple.isMacOSX() && TargetTriple.isMacOSXVersionLT(10, 5);
const Module *Mod = DAG.getMachineFunction().getFunction()->getParent();
const GlobalValue *GV = nullptr;
if (auto *G = dyn_cast<GlobalAddressSDNode>(Callee))
GV = G->getGlobal();
bool Local = shouldAssumeDSOLocal(RM, TargetTriple, *Mod, GV);
bool UsePlt =
!Local && (OldMachOLinker || (Subtarget.isTargetELF() && !isPPC64));
if (isFunctionGlobalAddress(Callee)) {
GlobalAddressSDNode *G = cast<GlobalAddressSDNode>(Callee);
// A call to a TLS address is actually an indirect call to a
// thread-specific pointer.
unsigned OpFlags = 0;
Reloc::Model RM = DAG.getTarget().getRelocationModel();
const Triple &TargetTriple = Subtarget.getTargetTriple();
const GlobalValue *GV = G->getGlobal();
bool OldMachOLinker =
TargetTriple.isMacOSX() && TargetTriple.isMacOSXVersionLT(10, 5);
if (!shouldAssumeDSOLocal(RM, TargetTriple, *GV->getParent(), GV) &&
(OldMachOLinker || (Subtarget.isTargetELF() && !isPPC64))) {
// PC-relative references to external symbols should go through $stub,
// unless we're building with the leopard linker or later, which
// automatically synthesizes these stubs.
if (UsePlt)
OpFlags = PPCII::MO_PLT_OR_STUB;
}
// If the callee is a GlobalAddress/ExternalSymbol node (quite common,
// every direct call is) turn it into a TargetGlobalAddress /
@ -4309,16 +4314,8 @@ PrepareCall(SelectionDAG &DAG, SDValue &Callee, SDValue &InFlag, SDValue &Chain,
if (ExternalSymbolSDNode *S = dyn_cast<ExternalSymbolSDNode>(Callee)) {
unsigned char OpFlags = 0;
if ((DAG.getTarget().getRelocationModel() != Reloc::Static &&
(Subtarget.getTargetTriple().isMacOSX() &&
Subtarget.getTargetTriple().isMacOSXVersionLT(10, 5))) ||
(Subtarget.isTargetELF() && !isPPC64 &&
DAG.getTarget().getRelocationModel() == Reloc::PIC_)) {
// PC-relative references to external symbols should go through $stub,
// unless we're building with the leopard linker or later, which
// automatically synthesizes these stubs.
if (UsePlt)
OpFlags = PPCII::MO_PLT_OR_STUB;
}
Callee = DAG.getTargetExternalSymbol(S->getSymbol(), Callee.getValueType(),
OpFlags);