- if (!Subtarget->GVRequiresExtraLoad(G->getGlobal(),
- getTargetMachine(), true))
- Callee = DAG.getTargetGlobalAddress(G->getGlobal(), getPointerTy(),
- G->getOffset());
+ GlobalValue *GV = G->getGlobal();
+ if (!Subtarget->GVRequiresExtraLoad(GV, getTargetMachine(), true)) {
+ unsigned char OpFlags = 0;
+
+ // On ELF targets, in both X86-64 and X86-32 mode, direct calls to
+ // external symbols most go through the PLT in PIC mode. If the symbol
+ // has hidden or protected visibility, or if it is static or local, then
+ // we don't need to use the PLT - we can directly call it.
+ if (Subtarget->isTargetELF() &&
+ getTargetMachine().getRelocationModel() == Reloc::PIC_ &&
+ GV->hasDefaultVisibility() && !GV->hasLocalLinkage()) {
+ OpFlags = X86II::MO_PLT;
+ } else if (Subtarget->isPICStyleStub() &&
+ (GV->isDeclaration() || GV->isWeakForLinker()) &&
+ Subtarget->getDarwinVers() < 9) {
+ // 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.
+ OpFlags = X86II::MO_DARWIN_STUB;
+ }
+
+ Callee = DAG.getTargetGlobalAddress(GV, getPointerTy(),
+ G->getOffset(), OpFlags);
+ }