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Reinstate "Nuke the old JIT."

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Approved by Jim Grosbach, Lang Hames, Rafael Espindola.

This reinstates commits r215111, 215115, 215116, 215117, 215136.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216982 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher
2014-09-02 22:28:02 +00:00
parent 4437658aff
commit d5dd8ce2a5
258 changed files with 184 additions and 12590 deletions
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lib/Target/PowerPC/PPCISelLowering.cpp
+20 -31
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@@ -688,11 +688,6 @@ PPCTargetLowering::PPCTargetLowering(PPCTargetMachine &TM)
if (Subtarget.isDarwin())
setPrefFunctionAlignment(4);
if (isPPC64 && Subtarget.isJITCodeModel())
// Temporary workaround for the inability of PPC64 JIT to handle jump
// tables.
setSupportJumpTables(false);
setInsertFencesForAtomic(true);
if (Subtarget.enableMachineScheduler())
@@ -3570,33 +3565,27 @@ unsigned PrepareCall(SelectionDAG &DAG, SDValue &Callee, SDValue &InFlag,
}
if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee)) {
// XXX Work around for http://llvm.org/bugs/show_bug.cgi?id=5201
// Use indirect calls for ALL functions calls in JIT mode, since the
// far-call stubs may be outside relocation limits for a BL instruction.
if (!DAG.getTarget().getSubtarget<PPCSubtarget>().isJITCodeModel()) {
unsigned OpFlags = 0;
if ((DAG.getTarget().getRelocationModel() != Reloc::Static &&
(Subtarget.getTargetTriple().isMacOSX() &&
Subtarget.getTargetTriple().isMacOSXVersionLT(10, 5)) &&
(G->getGlobal()->isDeclaration() ||
G->getGlobal()->isWeakForLinker())) ||
(Subtarget.isTargetELF() && !isPPC64 &&
!G->getGlobal()->hasLocalLinkage() &&
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.
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 /
// TargetExternalSymbol node so that legalize doesn't hack it.
Callee = DAG.getTargetGlobalAddress(G->getGlobal(), dl,
Callee.getValueType(),
0, OpFlags);
needIndirectCall = false;
unsigned OpFlags = 0;
if ((DAG.getTarget().getRelocationModel() != Reloc::Static &&
(Subtarget.getTargetTriple().isMacOSX() &&
Subtarget.getTargetTriple().isMacOSXVersionLT(10, 5)) &&
(G->getGlobal()->isDeclaration() ||
G->getGlobal()->isWeakForLinker())) ||
(Subtarget.isTargetELF() && !isPPC64 &&
!G->getGlobal()->hasLocalLinkage() &&
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.
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 /
// TargetExternalSymbol node so that legalize doesn't hack it.
Callee = DAG.getTargetGlobalAddress(G->getGlobal(), dl,
Callee.getValueType(), 0, OpFlags);
needIndirectCall = false;
}
if (ExternalSymbolSDNode *S = dyn_cast<ExternalSymbolSDNode>(Callee)) {