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[MachineBasicBlock] Use the const_cast(this) trick to reduce duplication

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NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240413 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2015-06-23 14:47:18 +00:00
parent 7376033762
commit d18bb88b2e
2 changed files with 6 additions and 27 deletions
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25
lib/CodeGen/MachineBasicBlock.cpp
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@ -171,16 +171,6 @@ MachineBasicBlock::iterator MachineBasicBlock::getFirstTerminator() {
return I;
}
MachineBasicBlock::const_iterator
MachineBasicBlock::getFirstTerminator() const {
const_iterator B = begin(), E = end(), I = E;
while (I != B && ((--I)->isTerminator() || I->isDebugValue()))
; /*noop */
while (I != E && !I->isTerminator())
++I;
return I;
}
MachineBasicBlock::instr_iterator MachineBasicBlock::getFirstInstrTerminator() {
instr_iterator B = instr_begin(), E = instr_end(), I = E;
while (I != B && ((--I)->isTerminator() || I->isDebugValue()))
@ -204,21 +194,6 @@ MachineBasicBlock::iterator MachineBasicBlock::getLastNonDebugInstr() {
return end();
}
MachineBasicBlock::const_iterator
MachineBasicBlock::getLastNonDebugInstr() const {
// Skip over end-of-block dbg_value instructions.
const_instr_iterator B = instr_begin(), I = instr_end();
while (I != B) {
--I;
// Return instruction that starts a bundle.
if (I->isDebugValue() || I->isInsideBundle())
continue;
return I;
}
// The block is all debug values.
return end();
}
const MachineBasicBlock *MachineBasicBlock::getLandingPadSuccessor() const {
// A block with a landing pad successor only has one other successor.
if (succ_size() > 2)