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Don't dereference the end() iterator. This was

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causing a bunch of failures when running
"make ENABLE_EXPENSIVE_CHECKS=1 check".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60832 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands 2008-12-10 09:38:36 +00:00
parent 01f8d09dd3
commit 7050f3d5ec
1 changed files with 3 additions and 2 deletions
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5
lib/Analysis/MemoryDependenceAnalysis.cpp
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@ -21,6 +21,7 @@
#include "llvm/Function.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/PredIteratorCache.h"
#include "llvm/Support/Debug.h"
#include "llvm/Target/TargetData.h"
@ -401,7 +402,7 @@ MemoryDependenceAnalysis::getNonLocalCallDependency(CallSite QueryCS) {
NonLocalDepInfo::iterator Entry =
std::upper_bound(Cache.begin(), Cache.begin()+NumSortedEntries,
std::make_pair(DirtyBB, MemDepResult()));
if (Entry != Cache.begin() && (&*Entry)[-1].first == DirtyBB)
if (Entry != Cache.begin() && prior(Entry)->first == DirtyBB)
--Entry;
MemDepResult *ExistingResult = 0;
@ -506,7 +507,7 @@ GetNonLocalInfoForBlock(Value *Pointer, uint64_t PointeeSize,
NonLocalDepInfo::iterator Entry =
std::upper_bound(Cache->begin(), Cache->begin()+NumSortedEntries,
std::make_pair(BB, MemDepResult()));
if (Entry != Cache->begin() && (&*Entry)[-1].first == BB)
if (Entry != Cache->begin() && prior(Entry)->first == BB)
--Entry;
MemDepResult *ExistingResult = 0;