diff options
Diffstat (limited to 'contrib/llvm/lib/Target/Mips/MipsInstrInfo.cpp')
-rw-r--r-- | contrib/llvm/lib/Target/Mips/MipsInstrInfo.cpp | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/contrib/llvm/lib/Target/Mips/MipsInstrInfo.cpp b/contrib/llvm/lib/Target/Mips/MipsInstrInfo.cpp index 6c09a3e..aaf307b 100644 --- a/contrib/llvm/lib/Target/Mips/MipsInstrInfo.cpp +++ b/contrib/llvm/lib/Target/Mips/MipsInstrInfo.cpp @@ -30,53 +30,6 @@ static bool isZeroImm(const MachineOperand &op) { return op.isImm() && op.getImm() == 0; } -/// Return true if the instruction is a register to register move and -/// leave the source and dest operands in the passed parameters. -bool MipsInstrInfo:: -isMoveInstr(const MachineInstr &MI, unsigned &SrcReg, unsigned &DstReg, - unsigned &SrcSubIdx, unsigned &DstSubIdx) const -{ - SrcSubIdx = DstSubIdx = 0; // No sub-registers. - - // addu $dst, $src, $zero || addu $dst, $zero, $src - // or $dst, $src, $zero || or $dst, $zero, $src - if ((MI.getOpcode() == Mips::ADDu) || (MI.getOpcode() == Mips::OR)) { - if (MI.getOperand(1).getReg() == Mips::ZERO) { - DstReg = MI.getOperand(0).getReg(); - SrcReg = MI.getOperand(2).getReg(); - return true; - } else if (MI.getOperand(2).getReg() == Mips::ZERO) { - DstReg = MI.getOperand(0).getReg(); - SrcReg = MI.getOperand(1).getReg(); - return true; - } - } - - // mov $fpDst, $fpSrc - // mfc $gpDst, $fpSrc - // mtc $fpDst, $gpSrc - if (MI.getOpcode() == Mips::FMOV_S32 || - MI.getOpcode() == Mips::FMOV_D32 || - MI.getOpcode() == Mips::MFC1 || - MI.getOpcode() == Mips::MTC1 || - MI.getOpcode() == Mips::MOVCCRToCCR) { - DstReg = MI.getOperand(0).getReg(); - SrcReg = MI.getOperand(1).getReg(); - return true; - } - - // addiu $dst, $src, 0 - if (MI.getOpcode() == Mips::ADDiu) { - if ((MI.getOperand(1).isReg()) && (isZeroImm(MI.getOperand(2)))) { - DstReg = MI.getOperand(0).getReg(); - SrcReg = MI.getOperand(1).getReg(); - return true; - } - } - - return false; -} - /// isLoadFromStackSlot - If the specified machine instruction is a direct /// load from a stack slot, return the virtual or physical register number of /// the destination along with the FrameIndex of the loaded stack slot. If |