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Change the ExitBlocks list from being explicitly contained in the Loop

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structure to being dynamically computed on demand.  This makes updating
loop information MUCH easier.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13045 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2004-04-18 22:14:10 +00:00
parent 7c8781e71f
commit f1ab4b4eac
7 changed files with 45 additions and 184 deletions
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6
lib/Transforms/IPO/LoopExtractor.cpp
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@ -92,8 +92,10 @@ bool LoopExtractor::runOnFunction(Function &F) {
else {
// Check to see if any exits from the loop are more than just return
// blocks.
for (unsigned i = 0, e = TLL->getExitBlocks().size(); i != e; ++i)
if (!isa<ReturnInst>(TLL->getExitBlocks()[i]->getTerminator())) {
std::vector<BasicBlock*> ExitBlocks;
TLL->getExitBlocks(ExitBlocks);
for (unsigned i = 0, e = ExitBlocks.size(); i != e; ++i)
if (!isa<ReturnInst>(ExitBlocks[i]->getTerminator())) {
ShouldExtractLoop = true;
break;
}