#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/MC/MCStreamer.h"
+#include "llvm/PassManager.h"
+#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Target/TargetOptions.h"
using namespace llvm;
+static cl::
+opt<bool> DisableCTRLoops("disable-ppc-ctrloops", cl::Hidden,
+ cl::desc("Disable CTR loops for PPC"));
+
+static cl::opt<bool>
+VSXFMAMutateEarly("schedule-ppc-vsx-fma-mutation-early",
+ cl::Hidden, cl::desc("Schedule VSX FMA instruction mutation early"));
+
extern "C" void LLVMInitializePowerPCTarget() {
// Register the targets
RegisterTargetMachine<PPC32TargetMachine> A(ThePPC32Target);
RegisterTargetMachine<PPC64TargetMachine> B(ThePPC64Target);
+ RegisterTargetMachine<PPC64TargetMachine> C(ThePPC64LETarget);
+}
+
+/// Return the datalayout string of a subtarget.
+static std::string getDataLayoutString(const PPCSubtarget &ST) {
+ const Triple &T = ST.getTargetTriple();
+
+ std::string Ret;
+
+ // Most PPC* platforms are big endian, PPC64LE is little endian.
+ if (ST.isLittleEndian())
+ Ret = "e";
+ else
+ Ret = "E";
+
+ Ret += DataLayout::getManglingComponent(T);
+
+ // PPC32 has 32 bit pointers. The PS3 (OS Lv2) is a PPC64 machine with 32 bit
+ // pointers.
+ if (!ST.isPPC64() || T.getOS() == Triple::Lv2)
+ Ret += "-p:32:32";
+
+ // Note, the alignment values for f64 and i64 on ppc64 in Darwin
+ // documentation are wrong; these are correct (i.e. "what gcc does").
+ if (ST.isPPC64() || ST.isSVR4ABI())
+ Ret += "-i64:64";
+ else
+ Ret += "-f64:32:64";
+
+ // PPC64 has 32 and 64 bit registers, PPC32 has only 32 bit ones.
+ if (ST.isPPC64())
+ Ret += "-n32:64";
+ else
+ Ret += "-n32";
+
+ return Ret;
}
PPCTargetMachine::PPCTargetMachine(const Target &T, StringRef TT,
CodeGenOpt::Level OL,
bool is64Bit)
: LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
- Subtarget(TT, CPU, FS, is64Bit),
- DataLayout(Subtarget.getTargetDataString()), InstrInfo(*this),
+ Subtarget(TT, CPU, FS, is64Bit, OL),
+ DL(getDataLayoutString(Subtarget)), InstrInfo(*this),
FrameLowering(Subtarget), JITInfo(*this, is64Bit),
TLInfo(*this), TSInfo(*this),
InstrItins(Subtarget.getInstrItineraryData()) {
-
- // The binutils for the BG/P are too old for CFI.
- if (Subtarget.isBGP())
- setMCUseCFI(false);
+ initAsmInfo();
}
void PPC32TargetMachine::anchor() { }
return getTM<PPCTargetMachine>();
}
+ const PPCSubtarget &getPPCSubtarget() const {
+ return *getPPCTargetMachine().getSubtargetImpl();
+ }
+
+ virtual bool addPreISel();
+ virtual bool addILPOpts();
virtual bool addInstSelector();
+ virtual bool addPreRegAlloc();
+ virtual bool addPreSched2();
virtual bool addPreEmitPass();
};
} // namespace
TargetPassConfig *PPCTargetMachine::createPassConfig(PassManagerBase &PM) {
- TargetPassConfig *PassConfig = new PPCPassConfig(this, PM);
+ return new PPCPassConfig(this, PM);
+}
- // Override this for PowerPC. Tail merging happily breaks up instruction issue
- // groups, which typically degrades performance.
- PassConfig->setEnableTailMerge(false);
+bool PPCPassConfig::addPreISel() {
+ if (!DisableCTRLoops && getOptLevel() != CodeGenOpt::None)
+ addPass(createPPCCTRLoops(getPPCTargetMachine()));
- return PassConfig;
+ return false;
+}
+
+bool PPCPassConfig::addILPOpts() {
+ if (getPPCSubtarget().hasISEL()) {
+ addPass(&EarlyIfConverterID);
+ return true;
+ }
+
+ return false;
}
bool PPCPassConfig::addInstSelector() {
// Install an instruction selector.
- PM.add(createPPCISelDag(getPPCTargetMachine()));
+ addPass(createPPCISelDag(getPPCTargetMachine()));
+
+#ifndef NDEBUG
+ if (!DisableCTRLoops && getOptLevel() != CodeGenOpt::None)
+ addPass(createPPCCTRLoopsVerify());
+#endif
+
+ if (getPPCSubtarget().hasVSX())
+ addPass(createPPCVSXCopyPass());
+
return false;
}
+bool PPCPassConfig::addPreRegAlloc() {
+ if (getPPCSubtarget().hasVSX()) {
+ initializePPCVSXFMAMutatePass(*PassRegistry::getPassRegistry());
+ insertPass(VSXFMAMutateEarly ? &RegisterCoalescerID : &MachineSchedulerID,
+ &PPCVSXFMAMutateID);
+ }
+
+ return false;
+}
+
+bool PPCPassConfig::addPreSched2() {
+ if (getPPCSubtarget().hasVSX())
+ addPass(createPPCVSXCopyCleanupPass());
+
+ if (getOptLevel() != CodeGenOpt::None)
+ addPass(&IfConverterID);
+
+ return true;
+}
+
bool PPCPassConfig::addPreEmitPass() {
+ if (getOptLevel() != CodeGenOpt::None)
+ addPass(createPPCEarlyReturnPass());
// Must run branch selection immediately preceding the asm printer.
- PM.add(createPPCBranchSelectionPass());
+ addPass(createPPCBranchSelectionPass());
return false;
}
bool PPCTargetMachine::addCodeEmitter(PassManagerBase &PM,
JITCodeEmitter &JCE) {
- // FIXME: This should be moved to TargetJITInfo!!
- if (Subtarget.isPPC64())
- // Temporary workaround for the inability of PPC64 JIT to handle jump
- // tables.
- Options.DisableJumpTables = true;
-
// Inform the subtarget that we are in JIT mode. FIXME: does this break macho
// writing?
Subtarget.SetJITMode();
return false;
}
+
+void PPCTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
+ // Add first the target-independent BasicTTI pass, then our PPC pass. This
+ // allows the PPC pass to delegate to the target independent layer when
+ // appropriate.
+ PM.add(createBasicTargetTransformInfoPass(this));
+ PM.add(createPPCTargetTransformInfoPass(this));
+}
+
projects / oota-llvm.git / blobdiff