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remove some dead code 

llvm-svn: 30938
This commit is contained in:
Chris Lattner 2006-10-13 20:40:42 +00:00
parent be131662c3
commit 63007919dc
2 changed files with 0 additions and 43 deletions
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33
llvm/lib/Target/X86/X86InstrInfo.cpp
View File

@ -239,39 +239,6 @@ MachineInstr *X86InstrInfo::commuteInstruction(MachineInstr *MI) const {
}
}
void X86InstrInfo::insertGoto(MachineBasicBlock& MBB,
MachineBasicBlock& TMBB) const {
BuildMI(MBB, MBB.end(), X86::JMP, 1).addMBB(&TMBB);
}
MachineBasicBlock::iterator
X86InstrInfo::reverseBranchCondition(MachineBasicBlock::iterator MI) const {
unsigned Opcode = MI->getOpcode();
assert(isBranch(Opcode) && "MachineInstr must be a branch");
unsigned ROpcode;
switch (Opcode) {
default: assert(0 && "Cannot reverse unconditional branches!");
case X86::JB: ROpcode = X86::JAE; break;
case X86::JAE: ROpcode = X86::JB; break;
case X86::JE: ROpcode = X86::JNE; break;
case X86::JNE: ROpcode = X86::JE; break;
case X86::JBE: ROpcode = X86::JA; break;
case X86::JA: ROpcode = X86::JBE; break;
case X86::JS: ROpcode = X86::JNS; break;
case X86::JNS: ROpcode = X86::JS; break;
case X86::JP: ROpcode = X86::JNP; break;
case X86::JNP: ROpcode = X86::JP; break;
case X86::JL: ROpcode = X86::JGE; break;
case X86::JGE: ROpcode = X86::JL; break;
case X86::JLE: ROpcode = X86::JG; break;
case X86::JG: ROpcode = X86::JLE; break;
}
MachineBasicBlock* MBB = MI->getParent();
MachineBasicBlock* TMBB = MI->getOperand(0).getMachineBasicBlock();
return BuildMI(*MBB, MBB->erase(MI), ROpcode, 1).addMBB(TMBB);
}
const TargetRegisterClass *X86InstrInfo::getPointerRegClass() const {
const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
if (Subtarget->is64Bit())

10
llvm/lib/Target/X86/X86InstrInfo.h
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@ -223,16 +223,6 @@ public:
virtual MachineInstr *commuteInstruction(MachineInstr *MI) const;
/// Insert a goto (unconditional branch) sequence to TMBB, at the
/// end of MBB
virtual void insertGoto(MachineBasicBlock& MBB,
MachineBasicBlock& TMBB) const;
/// Reverses the branch condition of the MachineInstr pointed by
/// MI. The instruction is replaced and the new MI is returned.
virtual MachineBasicBlock::iterator
reverseBranchCondition(MachineBasicBlock::iterator MI) const;
const TargetRegisterClass *getPointerRegClass() const;
// getBaseOpcodeFor - This function returns the "base" X86 opcode for the