diff options
Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCInstrInfo.cpp')
-rw-r--r-- | llvm/lib/Target/PowerPC/PPCInstrInfo.cpp | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp index c1cfc2567c4..b844f63c86f 100644 --- a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp +++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp @@ -2036,82 +2036,6 @@ FunctionPass* llvm::createPPCVSXCopyPass() { return new PPCVSXCopy(); } #undef DEBUG_TYPE -#define DEBUG_TYPE "ppc-vsx-copy-cleanup" - -namespace llvm { - void initializePPCVSXCopyCleanupPass(PassRegistry&); -} - -namespace { - // PPCVSXCopyCleanup pass - We sometimes end up generating self copies of VSX - // registers (mostly because the ABI code still places all values into the - // "traditional" floating-point and vector registers). Remove them here. - struct PPCVSXCopyCleanup : public MachineFunctionPass { - static char ID; - PPCVSXCopyCleanup() : MachineFunctionPass(ID) { - initializePPCVSXCopyCleanupPass(*PassRegistry::getPassRegistry()); - } - - const TargetInstrInfo *TII; - -protected: - bool processBlock(MachineBasicBlock &MBB) { - bool Changed = false; - - SmallVector<MachineInstr *, 4> ToDelete; - for (MachineBasicBlock::iterator I = MBB.begin(), IE = MBB.end(); - I != IE; ++I) { - MachineInstr *MI = I; - if (MI->getOpcode() == PPC::XXLOR && - MI->getOperand(0).getReg() == MI->getOperand(1).getReg() && - MI->getOperand(0).getReg() == MI->getOperand(2).getReg()) - ToDelete.push_back(MI); - } - - if (!ToDelete.empty()) - Changed = true; - - for (unsigned i = 0, ie = ToDelete.size(); i != ie; ++i) { - DEBUG(dbgs() << "Removing VSX self-copy: " << *ToDelete[i]); - ToDelete[i]->eraseFromParent(); - } - - return Changed; - } - -public: - bool runOnMachineFunction(MachineFunction &MF) override { - // If we don't have VSX don't bother doing anything here. - const PPCSubtarget &STI = MF.getSubtarget<PPCSubtarget>(); - if (!STI.hasVSX()) - return false; - TII = STI.getInstrInfo(); - - bool Changed = false; - - for (MachineFunction::iterator I = MF.begin(); I != MF.end();) { - MachineBasicBlock &B = *I++; - if (processBlock(B)) - Changed = true; - } - - return Changed; - } - - void getAnalysisUsage(AnalysisUsage &AU) const override { - MachineFunctionPass::getAnalysisUsage(AU); - } - }; -} - -INITIALIZE_PASS(PPCVSXCopyCleanup, DEBUG_TYPE, - "PowerPC VSX Copy Cleanup", false, false) - -char PPCVSXCopyCleanup::ID = 0; -FunctionPass* -llvm::createPPCVSXCopyCleanupPass() { return new PPCVSXCopyCleanup(); } - -#undef DEBUG_TYPE #define DEBUG_TYPE "ppc-early-ret" STATISTIC(NumBCLR, "Number of early conditional returns"); STATISTIC(NumBLR, "Number of early returns"); |