diff options
Diffstat (limited to 'lib/Target/Mips/MipsSEFrameLowering.cpp')
-rw-r--r-- | lib/Target/Mips/MipsSEFrameLowering.cpp | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsSEFrameLowering.cpp b/lib/Target/Mips/MipsSEFrameLowering.cpp index 2b7670497b..b295e911bd 100644 --- a/lib/Target/Mips/MipsSEFrameLowering.cpp +++ b/lib/Target/Mips/MipsSEFrameLowering.cpp @@ -40,6 +40,8 @@ public: private: bool expandInstr(MachineBasicBlock &MBB, Iter I); + void expandLoadCCond(MachineBasicBlock &MBB, Iter I); + void expandStoreCCond(MachineBasicBlock &MBB, Iter I); void expandLoadACC(MachineBasicBlock &MBB, Iter I, unsigned RegSize); void expandStoreACC(MachineBasicBlock &MBB, Iter I, unsigned RegSize); bool expandCopy(MachineBasicBlock &MBB, Iter I); @@ -71,6 +73,14 @@ bool ExpandPseudo::expand() { bool ExpandPseudo::expandInstr(MachineBasicBlock &MBB, Iter I) { switch(I->getOpcode()) { + case Mips::LOAD_CCOND_DSP: + case Mips::LOAD_CCOND_DSP_P8: + expandLoadCCond(MBB, I); + break; + case Mips::STORE_CCOND_DSP: + case Mips::STORE_CCOND_DSP_P8: + expandStoreCCond(MBB, I); + break; case Mips::LOAD_AC64: case Mips::LOAD_AC64_P8: case Mips::LOAD_AC_DSP: @@ -103,6 +113,36 @@ bool ExpandPseudo::expandInstr(MachineBasicBlock &MBB, Iter I) { return true; } +void ExpandPseudo::expandLoadCCond(MachineBasicBlock &MBB, Iter I) { + // load $vr, FI + // copy ccond, $vr + + assert(I->getOperand(0).isReg() && I->getOperand(1).isFI()); + + const TargetRegisterClass *RC = RegInfo.intRegClass(4); + unsigned VR = MRI.createVirtualRegister(RC); + unsigned Dst = I->getOperand(0).getReg(), FI = I->getOperand(1).getIndex(); + + TII.loadRegFromStack(MBB, I, VR, FI, RC, &RegInfo, 0); + BuildMI(MBB, I, I->getDebugLoc(), TII.get(TargetOpcode::COPY), Dst) + .addReg(VR, RegState::Kill); +} + +void ExpandPseudo::expandStoreCCond(MachineBasicBlock &MBB, Iter I) { + // copy $vr, ccond + // store $vr, FI + + assert(I->getOperand(0).isReg() && I->getOperand(1).isFI()); + + const TargetRegisterClass *RC = RegInfo.intRegClass(4); + unsigned VR = MRI.createVirtualRegister(RC); + unsigned Src = I->getOperand(0).getReg(), FI = I->getOperand(1).getIndex(); + + BuildMI(MBB, I, I->getDebugLoc(), TII.get(TargetOpcode::COPY), VR) + .addReg(Src, getKillRegState(I->getOperand(0).isKill())); + TII.storeRegToStack(MBB, I, VR, true, FI, RC, &RegInfo, 0); +} + void ExpandPseudo::expandLoadACC(MachineBasicBlock &MBB, Iter I, unsigned RegSize) { // load $vr0, FI |