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-rw-r--r--include/llvm/CodeGen/SlotIndexes.h45
1 files changed, 33 insertions, 12 deletions
diff --git a/include/llvm/CodeGen/SlotIndexes.h b/include/llvm/CodeGen/SlotIndexes.h
index f1f047b..88044c7 100644
--- a/include/llvm/CodeGen/SlotIndexes.h
+++ b/include/llvm/CodeGen/SlotIndexes.h
@@ -128,7 +128,8 @@ namespace llvm {
friend class SlotIndexes;
friend struct DenseMapInfo<SlotIndex>;
- private:
+ enum Slot { LOAD, USE, DEF, STORE, NUM };
+
static const unsigned PHI_BIT = 1 << 2;
PointerIntPair<IndexListEntry*, 3, unsigned> lie;
@@ -146,6 +147,11 @@ namespace llvm {
return entry().getIndex() | getSlot();
}
+ /// Returns the slot for this SlotIndex.
+ Slot getSlot() const {
+ return static_cast<Slot>(lie.getInt() & ~PHI_BIT);
+ }
+
static inline unsigned getHashValue(const SlotIndex &v) {
IndexListEntry *ptrVal = &v.entry();
return (unsigned((intptr_t)ptrVal) >> 4) ^
@@ -153,11 +159,6 @@ namespace llvm {
}
public:
-
- // FIXME: Ugh. This is public because LiveIntervalAnalysis is still using it
- // for some spill weight stuff. Fix that, then make this private.
- enum Slot { LOAD, USE, DEF, STORE, NUM };
-
static inline SlotIndex getEmptyKey() {
return SlotIndex(IndexListEntry::getEmptyKeyEntry(), 0);
}
@@ -235,16 +236,31 @@ namespace llvm {
return other.getIndex() - getIndex();
}
- /// Returns the slot for this SlotIndex.
- Slot getSlot() const {
- return static_cast<Slot>(lie.getInt() & ~PHI_BIT);
- }
-
/// Returns the state of the PHI bit.
bool isPHI() const {
return lie.getInt() & PHI_BIT;
}
+ /// isLoad - Return true if this is a LOAD slot.
+ bool isLoad() const {
+ return getSlot() == LOAD;
+ }
+
+ /// isDef - Return true if this is a DEF slot.
+ bool isDef() const {
+ return getSlot() == DEF;
+ }
+
+ /// isUse - Return true if this is a USE slot.
+ bool isUse() const {
+ return getSlot() == USE;
+ }
+
+ /// isStore - Return true if this is a STORE slot.
+ bool isStore() const {
+ return getSlot() == STORE;
+ }
+
/// Returns the base index for associated with this index. The base index
/// is the one associated with the LOAD slot for the instruction pointed to
/// by this index.
@@ -475,7 +491,7 @@ namespace llvm {
public:
static char ID;
- SlotIndexes() : MachineFunctionPass(&ID), indexListHead(0) {}
+ SlotIndexes() : MachineFunctionPass(ID), indexListHead(0) {}
virtual void getAnalysisUsage(AnalysisUsage &au) const;
virtual void releaseMemory();
@@ -494,6 +510,11 @@ namespace llvm {
return SlotIndex(front(), 0);
}
+ /// Returns the base index of the last slot in this analysis.
+ SlotIndex getLastIndex() {
+ return SlotIndex(back(), 0);
+ }
+
/// Returns the invalid index marker for this analysis.
SlotIndex getInvalidIndex() {
return getZeroIndex();
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