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Avoid comparing invalid slot indexes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126922 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2011-03-03 04:23:52 +00:00
parent 36d61863bc
commit b64f669b66
1 changed files with 6 additions and 4 deletions
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10
lib/CodeGen/LiveInterval.cpp
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@ -33,16 +33,18 @@ using namespace llvm;
// CompEnd - Compare LiveRange ends.
namespace {
struct CompEnd {
bool operator()(const LiveRange &A, const LiveRange &B) const {
return A.end < B.end;
bool operator()(SlotIndex A, const LiveRange &B) const {
return A < B.end;
}
bool operator()(const LiveRange &A, SlotIndex B) const {
return A.end < B;
}
};
}
LiveInterval::iterator LiveInterval::find(SlotIndex Pos) {
assert(Pos.isValid() && "Cannot search for an invalid index");
return std::upper_bound(begin(), end(), LiveRange(SlotIndex(), Pos, 0),
CompEnd());
return std::upper_bound(begin(), end(), Pos, CompEnd());
}
/// killedInRange - Return true if the interval has kills in [Start,End).