//
//===----------------------------------------------------------------------===//
-#include "PPC.h"
#include "PPCTargetMachine.h"
+#include "PPC.h"
#include "llvm/PassManager.h"
#include "llvm/MC/MCStreamer.h"
+#include "llvm/CodeGen/Passes.h"
#include "llvm/Target/TargetOptions.h"
+#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/TargetRegistry.h"
using namespace llvm;
+static cl::
+opt<bool> DisableCTRLoops("disable-ppc-ctrloops", cl::Hidden,
+ cl::desc("Disable CTR loops for PPC"));
+
extern "C" void LLVMInitializePowerPCTarget() {
// Register the targets
RegisterTargetMachine<PPC32TargetMachine> A(ThePPC32Target);
FrameLowering(Subtarget), JITInfo(*this, is64Bit),
TLInfo(*this), TSInfo(*this),
InstrItins(Subtarget.getInstrItineraryData()) {
-}
-/// Override this for PowerPC. Tail merging happily breaks up instruction issue
-/// groups, which typically degrades performance.
-bool PPCTargetMachine::getEnableTailMergeDefault() const { return false; }
+ // The binutils for the BG/P are too old for CFI.
+ if (Subtarget.isBGP())
+ setMCUseCFI(false);
+}
void PPC32TargetMachine::anchor() { }
// Pass Pipeline Configuration
//===----------------------------------------------------------------------===//
-bool PPCTargetMachine::addInstSelector(PassManagerBase &PM) {
+namespace {
+/// PPC Code Generator Pass Configuration Options.
+class PPCPassConfig : public TargetPassConfig {
+public:
+ PPCPassConfig(PPCTargetMachine *TM, PassManagerBase &PM)
+ : TargetPassConfig(TM, PM) {}
+
+ PPCTargetMachine &getPPCTargetMachine() const {
+ return getTM<PPCTargetMachine>();
+ }
+
+ virtual bool addPreRegAlloc();
+ virtual bool addInstSelector();
+ virtual bool addPreEmitPass();
+};
+} // namespace
+
+TargetPassConfig *PPCTargetMachine::createPassConfig(PassManagerBase &PM) {
+ return new PPCPassConfig(this, PM);
+}
+
+bool PPCPassConfig::addPreRegAlloc() {
+ if (!DisableCTRLoops && getOptLevel() != CodeGenOpt::None)
+ PM->add(createPPCCTRLoops());
+
+ return false;
+}
+
+bool PPCPassConfig::addInstSelector() {
// Install an instruction selector.
- PM.add(createPPCISelDag(*this));
+ PM->add(createPPCISelDag(getPPCTargetMachine()));
return false;
}
-bool PPCTargetMachine::addPreEmitPass(PassManagerBase &PM) {
+bool PPCPassConfig::addPreEmitPass() {
// Must run branch selection immediately preceding the asm printer.
- PM.add(createPPCBranchSelectionPass());
+ PM->add(createPPCBranchSelectionPass());
return false;
}