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Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool>

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This is to be consistent with StringSet and ultimately with the standard
library's associative container insert function.

This lead to updating SmallSet::insert to return pair<iterator, bool>,
and then to update SmallPtrSet::insert to return pair<iterator, bool>,
and then to update all the existing users of those functions...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222334 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2014-11-19 07:49:26 +00:00
parent 0e8675a621
commit 5401ba7099
107 changed files with 255 additions and 228 deletions
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4
lib/Transforms/Utils/Local.cpp
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@ -392,7 +392,7 @@ bool llvm::RecursivelyDeleteDeadPHINode(PHINode *PN,
// If we find an instruction more than once, we're on a cycle that
// won't prove fruitful.
if (!Visited.insert(I)) {
if (!Visited.insert(I).second) {
// Break the cycle and delete the instruction and its operands.
I->replaceAllUsesWith(UndefValue::get(I->getType()));
(void)RecursivelyDeleteTriviallyDeadInstructions(I, TLI);
@ -1266,7 +1266,7 @@ static bool markAliveBlocks(BasicBlock *BB,
Changed |= ConstantFoldTerminator(BB, true);
for (succ_iterator SI = succ_begin(BB), SE = succ_end(BB); SI != SE; ++SI)
if (Reachable.insert(*SI))
if (Reachable.insert(*SI).second)
Worklist.push_back(*SI);
} while (!Worklist.empty());
return Changed;