Changes in directory llvm/include/llvm/CodeGen:
MachineBasicBlock.h updated: 1.54 -> 1.55
---
Log message:
Add live-ins to MachineBasicBlock.
---
Diffs of the changes: (+22 -2)
MachineBasicBlock.h | 24 ++++++++++++++++++++++--
1 files changed, 22 insertions(+), 2 deletions(-)
Index: llvm/include/llvm/CodeGen/MachineBasicBlock.h
diff -u llvm/include/llvm/CodeGen/MachineBasicBlock.h:1.54
llvm/include/llvm/CodeGen/MachineBasicBlock.h:1.55
--- llvm/include/llvm/CodeGen/MachineBasicBlock.h:1.54 Sat Dec 16 23:15:12 2006
+++ llvm/include/llvm/CodeGen/MachineBasicBlock.h Fri Feb 9 20:36:39 2007
@@ -63,11 +63,18 @@
Instructions Insts;
MachineBasicBlock *Prev, *Next;
const BasicBlock *BB;
- std::vector<MachineBasicBlock *> Predecessors;
- std::vector<MachineBasicBlock *> Successors;
int Number;
MachineFunction *Parent;
+ /// Predecessors/Successors - Keep track of the predecessor / successor
+ /// basicblocks.
+ std::vector<MachineBasicBlock *> Predecessors;
+ std::vector<MachineBasicBlock *> Successors;
+
+ /// LiveIns - Keep track of the physical registers that are livein of
+ /// the basicblock.
+ std::vector<unsigned> LiveIns;
+
public:
MachineBasicBlock(const BasicBlock *bb = 0) : Prev(0), Next(0), BB(bb),
Number(-1), Parent(0) {
@@ -125,6 +132,19 @@
unsigned succ_size() const { return Successors.size(); }
bool succ_empty() const { return Successors.empty(); }
+ // LiveIn management methods.
+
+ /// addLiveIn - Add the specified register as a live in. Note that it
+ /// is an error to add the same register to the same set more than once.
+ void addLiveIn(unsigned Reg) { LiveIns.push_back(Reg); }
+
+ // Iteration support for live in sets. These sets are kept in sorted
+ // order by their register number.
+ typedef std::vector<unsigned>::const_iterator livein_iterator;
+ livein_iterator livein_begin() const { return LiveIns.begin(); }
+ livein_iterator livein_end() const { return LiveIns.end(); }
+ bool livein_empty() const { return LiveIns.empty(); }
+
// Code Layout methods.
/// moveBefore/moveAfter - move 'this' block before or after the specified
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