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BitVector: add iterators for set bits

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Differential revision: https://reviews.llvm.org/D32060

llvm-svn: 303227
This commit is contained in:
Francis Visoiu Mistrih
2017-05-17 01:07:53 +00:00
parent de83fec029
commit b52e036600
18 changed files with 135 additions and 50 deletions
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6
llvm/lib/CodeGen/StackColoring.cpp
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@@ -703,12 +703,10 @@ void StackColoring::calculateLiveIntervals(unsigned NumSlots) {
// Create the interval of the blocks that we previously found to be 'alive'.
BlockLifetimeInfo &MBBLiveness = BlockLiveness[&MBB];
for (int pos = MBBLiveness.LiveIn.find_first(); pos != -1;
pos = MBBLiveness.LiveIn.find_next(pos)) {
for (unsigned pos : MBBLiveness.LiveIn.set_bits()) {
Starts[pos] = Indexes->getMBBStartIdx(&MBB);
}
for (int pos = MBBLiveness.LiveOut.find_first(); pos != -1;
pos = MBBLiveness.LiveOut.find_next(pos)) {
for (unsigned pos : MBBLiveness.LiveOut.set_bits()) {
Finishes[pos] = Indexes->getMBBEndIdx(&MBB);
}