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Fix a conditional so we don't access past the end of the range. Thanks to

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Andrew for bringing this to my attn.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23850 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2005-10-20 22:50:10 +00:00
parent 964b6aacb4
commit cef6010c64
1 changed files with 4 additions and 6 deletions
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10
lib/CodeGen/LiveInterval.cpp
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@@ -218,12 +218,10 @@ void LiveInterval::extendIntervalEndTo(Ranges::iterator I, unsigned NewEnd) {
// If the newly formed range now touches the range after it and if they have // If the newly formed range now touches the range after it and if they have
// the same value number, merge the two ranges into one range. // the same value number, merge the two ranges into one range.
if (I != ranges.end()) { Ranges::iterator Next = next(I);
Ranges::iterator Next = next(I); if (Next != ranges.end() && Next->start == I->end && Next->ValId == ValId) {
if (Next->start == I->end && Next->ValId == ValId) { I->end = Next->end;
I->end = Next->end; ranges.erase(Next);
ranges.erase(Next);
}
} }
} }