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Loop exit sets are no longer explicitly held, they are dynamically computed on demand.

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llvm-svn: 13046
This commit is contained in:
Chris Lattner 2004-04-18 22:15:13 +00:00
parent 7174acca00
commit 8e42c6f409
1 changed files with 6 additions and 3 deletions
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9
lib/Transforms/Scalar/LICM.cpp
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@ -436,7 +436,8 @@ bool LICM::isLoopInvariantInst(Instruction &I) {
void LICM::sink(Instruction &I) {
DEBUG(std::cerr << "LICM sinking instruction: " << I);
const std::vector<BasicBlock*> &ExitBlocks = CurLoop->getExitBlocks();
std::vector<BasicBlock*> ExitBlocks;
CurLoop->getExitBlocks(ExitBlocks);
if (isa<LoadInst>(I)) ++NumMovedLoads;
else if (isa<CallInst>(I)) ++NumMovedCalls;
@ -593,7 +594,8 @@ bool LICM::isSafeToExecuteUnconditionally(Instruction &Inst) {
return true;
// Get the exit blocks for the current loop.
const std::vector<BasicBlock*> &ExitBlocks = CurLoop->getExitBlocks();
std::vector<BasicBlock*> ExitBlocks;
CurLoop->getExitBlocks(ExitBlocks);
// For each exit block, get the DT node and walk up the DT until the
// instruction's basic block is found or we exit the loop.
@ -667,7 +669,8 @@ void LICM::PromoteValuesInLoop() {
//
std::set<BasicBlock*> ProcessedBlocks;
const std::vector<BasicBlock*> &ExitBlocks = CurLoop->getExitBlocks();
std::vector<BasicBlock*> ExitBlocks;
CurLoop->getExitBlocks(ExitBlocks);
for (unsigned i = 0, e = ExitBlocks.size(); i != e; ++i)
if (ProcessedBlocks.insert(ExitBlocks[i]).second) {
// Copy all of the allocas into their memory locations...