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Make OptimizeBlock take a MachineFunction::iterator instead of a

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MachineBasicBlock* as a parameter so that nxext() and prior() helper
functions can work naturally on it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15376 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alkis Evlogimenos 2004-07-31 19:24:41 +00:00
parent 7f74340733
commit f978a1db51
1 changed files with 4 additions and 4 deletions
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8
lib/CodeGen/BranchFolding.cpp
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@ -28,8 +28,8 @@ namespace {
virtual bool runOnMachineFunction(MachineFunction &MF); virtual bool runOnMachineFunction(MachineFunction &MF);
virtual const char *getPassName() const { return "Branch Folder"; } virtual const char *getPassName() const { return "Branch Folder"; }
private: private:
bool OptimizeBlock(MachineBasicBlock *MBB, const TargetInstrInfo &TII); bool OptimizeBlock(MachineFunction::iterator MBB,
const TargetInstrInfo &TII);
bool isUncondBranch(const MachineInstr *MI, const TargetInstrInfo &TII) { bool isUncondBranch(const MachineInstr *MI, const TargetInstrInfo &TII) {
return TII.isBarrier(MI->getOpcode()) && TII.isBranch(MI->getOpcode()); return TII.isBarrier(MI->getOpcode()) && TII.isBranch(MI->getOpcode());
@ -108,13 +108,13 @@ static void ReplaceUsesOfBlockWith(MachineBasicBlock *BB,
} }
bool BranchFolder::OptimizeBlock(MachineBasicBlock *MBB, bool BranchFolder::OptimizeBlock(MachineFunction::iterator MBB,
const TargetInstrInfo &TII) { const TargetInstrInfo &TII) {
// If this block is empty, make everyone use it's fall-through, not the block // If this block is empty, make everyone use it's fall-through, not the block
// explicitly. // explicitly.
if (MBB->empty()) { if (MBB->empty()) {
if (MBB->pred_empty()) return false; if (MBB->pred_empty()) return false;
MachineFunction::iterator FallThrough =next(MachineFunction::iterator(MBB)); MachineFunction::iterator FallThrough =next(MBB);
assert(FallThrough != MBB->getParent()->end() && assert(FallThrough != MBB->getParent()->end() &&
"Fell off the end of the function!"); "Fell off the end of the function!");
while (!MBB->pred_empty()) { while (!MBB->pred_empty()) {