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Add some machine CFG related stuff

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llvm-svn: 15352
This commit is contained in:
Chris Lattner 2004-07-31 01:59:11 +00:00
parent e757e5a231
commit 6f4beb3664
2 changed files with 25 additions and 9 deletions
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30
include/llvm/CodeGen/MachineBasicBlock.h
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@ -115,30 +115,42 @@ public:
pred_iterator pred_end() { return Predecessors.end (); }
const_pred_iterator pred_end() const { return Predecessors.end (); }
unsigned pred_size() const { return Predecessors.size (); }
bool pred_empty() const { return Predecessors.empty(); }
succ_iterator succ_begin() { return Successors.begin (); }
const_succ_iterator succ_begin() const { return Successors.begin (); }
succ_iterator succ_end() { return Successors.end (); }
const_succ_iterator succ_end() const { return Successors.end (); }
unsigned succ_size() const { return Successors.size (); }
bool succ_empty() const { return Successors.empty(); }
// Machine-CFG mutators
/// addSuccessor - Add succ as a successor of this MachineBasicBlock.
/// The Predecessors list of succ is automatically updated.
///
void addSuccessor (MachineBasicBlock *succ) {
Successors.push_back (succ);
succ->addPredecessor (this);
void addSuccessor(MachineBasicBlock *succ) {
Successors.push_back(succ);
succ->addPredecessor(this);
}
/// removeSuccessor - Remove succ from the successors list of this
/// removeSuccessor - Remove successor from the successors list of this
/// MachineBasicBlock. The Predecessors list of succ is automatically updated.
///
void removeSuccessor (MachineBasicBlock *succ) {
succ->removePredecessor (this);
std::vector<MachineBasicBlock *>::iterator goner =
std::find (Successors.begin(), Successors.end (), succ);
Successors.erase (goner);
void removeSuccessor(MachineBasicBlock *succ) {
succ->removePredecessor(this);
succ_iterator I = std::find(Successors.begin(), Successors.end(), succ);
assert(I != Successors.end() && "Not a current successor!");
Successors.erase(I);
}
/// removeSuccessor - Remove specified successor from the successors list of
/// this MachineBasicBlock. The Predecessors list of succ is automatically
/// updated.
///
void removeSuccessor(succ_iterator I) {
assert(I != Successors.end() && "Not a current successor!");
(*I)->removePredecessor(this);
Successors.erase(I);
}
/// getFirstTerminator - returns an iterator to the first terminator

4
include/llvm/CodeGen/MachineInstr.h
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@ -255,6 +255,10 @@ public:
assert(isMachineBasicBlock() && "Wrong MachineOperand accessor");
return contents.MBB;
}
void setMachineBasicBlock(MachineBasicBlock *MBB) {
assert(isMachineBasicBlock() && "Wrong MachineOperand accessor");
contents.MBB = MBB;
}
int getFrameIndex() const {
assert(isFrameIndex() && "Wrong MachineOperand accessor");
return contents.immedVal;