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| author | Andrew Lenharth <andrewl@lenharth.org> | 2006-11-07 20:39:05 +0000 |
|---|---|---|
| committer | Andrew Lenharth <andrewl@lenharth.org> | 2006-11-07 20:39:05 +0000 |
| commit | 1bce1fb054d792e7377ac4ede8c34b26cc267735 (patch) | |
| tree | 45a602514a36b68925fc64ab6adfa7d64850e95b /lib/Analysis | |
| parent | df983de743fa94b7d8f90f20238e7503960726fd (diff) | |
| download | llvm-1bce1fb054d792e7377ac4ede8c34b26cc267735.tar.gz llvm-1bce1fb054d792e7377ac4ede8c34b26cc267735.tar.bz2 llvm-1bce1fb054d792e7377ac4ede8c34b26cc267735.tar.xz | |
Optionally allow comparison operations from affect DSGraphs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31511 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis')
| -rw-r--r-- | lib/Analysis/DataStructure/Local.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/Analysis/DataStructure/Local.cpp b/lib/Analysis/DataStructure/Local.cpp index 2542fd0196..856ceb3c9a 100644 --- a/lib/Analysis/DataStructure/Local.cpp +++ b/lib/Analysis/DataStructure/Local.cpp @@ -40,6 +40,10 @@ static cl::opt<bool> TrackIntegersAsPointers("dsa-track-integers", cl::Hidden, cl::desc("If this is set, track integers as potential pointers")); +static cl::opt<bool> +IgnoreSetCC("dsa-ignore-setcc", cl::Hidden, + cl::desc("If this is set, do nothing at pointer comparisons")); + static cl::list<std::string> AllocList("dsa-alloc-list", cl::value_desc("list"), @@ -336,7 +340,8 @@ void GraphBuilder::visitSelectInst(SelectInst &SI) { void GraphBuilder::visitSetCondInst(SetCondInst &SCI) { if (!isPointerType(SCI.getOperand(0)->getType()) || isa<ConstantPointerNull>(SCI.getOperand(1))) return; // Only pointers - ScalarMap[SCI.getOperand(0)].mergeWith(getValueDest(*SCI.getOperand(1))); + if(!IgnoreSetCC) + ScalarMap[SCI.getOperand(0)].mergeWith(getValueDest(*SCI.getOperand(1))); } |