Use find_first/find_next to iterate through all the set bits in a
BitVector, instead of manually testing each bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59246 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 1709618..a512912 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -399,14 +399,13 @@
// Iterate over all of the blocks that the variable is completely
// live in, adding [insrtIndex(begin), instrIndex(end)+4) to the
// live interval.
- for (unsigned i = 0, e = vi.AliveBlocks.size(); i != e; ++i) {
- if (vi.AliveBlocks[i]) {
- LiveRange LR(getMBBStartIdx(i),
- getMBBEndIdx(i)+1, // MBB ends at -1.
- ValNo);
- interval.addRange(LR);
- DOUT << " +" << LR;
- }
+ for (int i = vi.AliveBlocks.find_first(); i != -1;
+ i = vi.AliveBlocks.find_next(i)) {
+ LiveRange LR(getMBBStartIdx(i),
+ getMBBEndIdx(i)+1, // MBB ends at -1.
+ ValNo);
+ interval.addRange(LR);
+ DOUT << " +" << LR;
}
// Finally, this virtual register is live from the start of any killing
diff --git a/lib/CodeGen/LiveVariables.cpp b/lib/CodeGen/LiveVariables.cpp
index 632cd82..9fe42f6 100644
--- a/lib/CodeGen/LiveVariables.cpp
+++ b/lib/CodeGen/LiveVariables.cpp
@@ -52,11 +52,11 @@
void LiveVariables::VarInfo::dump() const {
cerr << " Alive in blocks: ";
- for (unsigned i = 0, e = AliveBlocks.size(); i != e; ++i)
- if (AliveBlocks[i]) cerr << i << ", ";
+ for (int i = AliveBlocks.find_first(); i != -1; i = AliveBlocks.find_next(i))
+ cerr << i << ", ";
cerr << " Used in blocks: ";
- for (unsigned i = 0, e = UsedBlocks.size(); i != e; ++i)
- if (UsedBlocks[i]) cerr << i << ", ";
+ for (int i = UsedBlocks.find_first(); i != -1; i = UsedBlocks.find_next(i))
+ cerr << i << ", ";
cerr << "\n Killed by:";
if (Kills.empty())
cerr << " No instructions.\n";