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[NFC] Turn collectTransitivePredecessors into a static function

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llvm-svn: 346217
This commit is contained in:
Max Kazantsev 2018-11-06 09:07:03 +00:00
parent 21c2bce874
commit 712a03820e
2 changed files with 5 additions and 9 deletions
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7
include/llvm/Analysis/MustExecute.h
View File

@ -49,13 +49,6 @@ class LoopSafetyInfo {
// Used to update funclet bundle operands. // Used to update funclet bundle operands.
DenseMap<BasicBlock *, ColorVector> BlockColors; DenseMap<BasicBlock *, ColorVector> BlockColors;
/// Collect all blocks from \p CurLoop which lie on all possible paths from
/// the header of \p CurLoop (inclusive) to BB (exclusive) into the set
/// \p Predecessors. If \p BB is the header, \p Predecessors will be empty.
void collectTransitivePredecessors(
const Loop *CurLoop, const BasicBlock *BB,
SmallPtrSetImpl<const BasicBlock *> &Predecessors) const;
protected: protected:
/// Computes block colors. /// Computes block colors.
void computeBlockColors(const Loop *CurLoop); void computeBlockColors(const Loop *CurLoop);

7
lib/Analysis/MustExecute.cpp
View File

@ -145,9 +145,12 @@ static bool CanProveNotTakenFirstIteration(const BasicBlock *ExitBlock,
return SimpleCst->isAllOnesValue(); return SimpleCst->isAllOnesValue();
} }
void LoopSafetyInfo::collectTransitivePredecessors( /// Collect all blocks from \p CurLoop which lie on all possible paths from
/// the header of \p CurLoop (inclusive) to BB (exclusive) into the set
/// \p Predecessors. If \p BB is the header, \p Predecessors will be empty.
static void collectTransitivePredecessors(
const Loop *CurLoop, const BasicBlock *BB, const Loop *CurLoop, const BasicBlock *BB,
SmallPtrSetImpl<const BasicBlock *> &Predecessors) const { SmallPtrSetImpl<const BasicBlock *> &Predecessors) {
assert(Predecessors.empty() && "Garbage in predecessors set?"); assert(Predecessors.empty() && "Garbage in predecessors set?");
assert(CurLoop->contains(BB) && "Should only be called for loop blocks!"); assert(CurLoop->contains(BB) && "Should only be called for loop blocks!");
if (BB == CurLoop->getHeader()) if (BB == CurLoop->getHeader())