diff options
Diffstat (limited to 'contrib/llvm/lib/Target/PowerPC/PPCBranchSelector.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/PowerPC/PPCBranchSelector.cpp | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/contrib/llvm/lib/Target/PowerPC/PPCBranchSelector.cpp b/contrib/llvm/lib/Target/PowerPC/PPCBranchSelector.cpp index 3e608ca8f679..ee906712ee02 100644 --- a/contrib/llvm/lib/Target/PowerPC/PPCBranchSelector.cpp +++ b/contrib/llvm/lib/Target/PowerPC/PPCBranchSelector.cpp @@ -15,7 +15,6 @@ // //===----------------------------------------------------------------------===// -#define DEBUG_TYPE "ppc-branch-select" #include "PPC.h" #include "MCTargetDesc/PPCPredicates.h" #include "PPCInstrBuilder.h" @@ -26,6 +25,8 @@ #include "llvm/Target/TargetMachine.h" using namespace llvm; +#define DEBUG_TYPE "ppc-branch-select" + STATISTIC(NumExpanded, "Number of branches expanded to long format"); namespace llvm { @@ -42,9 +43,9 @@ namespace { /// BlockSizes - The sizes of the basic blocks in the function. std::vector<unsigned> BlockSizes; - virtual bool runOnMachineFunction(MachineFunction &Fn); + bool runOnMachineFunction(MachineFunction &Fn) override; - virtual const char *getPassName() const { + const char *getPassName() const override { return "PowerPC Branch Selector"; } }; @@ -112,9 +113,12 @@ bool PPCBSel::runOnMachineFunction(MachineFunction &Fn) { unsigned MBBStartOffset = 0; for (MachineBasicBlock::iterator I = MBB.begin(), E = MBB.end(); I != E; ++I) { - MachineBasicBlock *Dest = 0; + MachineBasicBlock *Dest = nullptr; if (I->getOpcode() == PPC::BCC && !I->getOperand(2).isImm()) Dest = I->getOperand(2).getMBB(); + else if ((I->getOpcode() == PPC::BC || I->getOpcode() == PPC::BCn) && + !I->getOperand(1).isImm()) + Dest = I->getOperand(1).getMBB(); else if ((I->getOpcode() == PPC::BDNZ8 || I->getOpcode() == PPC::BDNZ || I->getOpcode() == PPC::BDZ8 || I->getOpcode() == PPC::BDZ) && !I->getOperand(0).isImm()) @@ -166,6 +170,12 @@ bool PPCBSel::runOnMachineFunction(MachineFunction &Fn) { // Jump over the uncond branch inst (i.e. $PC+8) on opposite condition. BuildMI(MBB, I, dl, TII->get(PPC::BCC)) .addImm(PPC::InvertPredicate(Pred)).addReg(CRReg).addImm(2); + } else if (I->getOpcode() == PPC::BC) { + unsigned CRBit = I->getOperand(0).getReg(); + BuildMI(MBB, I, dl, TII->get(PPC::BCn)).addReg(CRBit).addImm(2); + } else if (I->getOpcode() == PPC::BCn) { + unsigned CRBit = I->getOperand(0).getReg(); + BuildMI(MBB, I, dl, TII->get(PPC::BC)).addReg(CRBit).addImm(2); } else if (I->getOpcode() == PPC::BDNZ) { BuildMI(MBB, I, dl, TII->get(PPC::BDZ)).addImm(2); } else if (I->getOpcode() == PPC::BDNZ8) { |