diff options
Diffstat (limited to 'lib/Analysis/DataStructure/DataStructure.cpp')
| -rw-r--r-- | lib/Analysis/DataStructure/DataStructure.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/Analysis/DataStructure/DataStructure.cpp b/lib/Analysis/DataStructure/DataStructure.cpp index bd1757dcfd..7fabdf2123 100644 --- a/lib/Analysis/DataStructure/DataStructure.cpp +++ b/lib/Analysis/DataStructure/DataStructure.cpp @@ -39,6 +39,10 @@ namespace { Statistic<> NumDNE ("dsa", "Number of nodes removed by reachability"); Statistic<> NumTrivialDNE ("dsa", "Number of nodes trivially removed"); Statistic<> NumTrivialGlobalDNE("dsa", "Number of globals trivially removed"); + static cl::opt<unsigned> + DSAFieldLimit("dsa-field-limit", cl::Hidden, + cl::desc("Number of fields to track before collapsing a node"), + cl::init(256)); }; #if 0 @@ -468,7 +472,7 @@ bool DSNode::mergeTypeInfo(const Type *NewTy, unsigned Offset, // collapse it. This can occur for fortran common blocks, which have stupid // things like { [100000000 x double], [1000000 x double] }. unsigned NumFields = (NewTySize+DS::PointerSize-1) >> DS::PointerShift; - if (NumFields > 256) { + if (NumFields > DSAFieldLimit) { foldNodeCompletely(); return true; } @@ -496,7 +500,7 @@ bool DSNode::mergeTypeInfo(const Type *NewTy, unsigned Offset, // collapse it. This can occur for fortran common blocks, which have stupid // things like { [100000000 x double], [1000000 x double] }. unsigned NumFields = (NewTySize+Offset+DS::PointerSize-1) >> DS::PointerShift; - if (NumFields > 256) { + if (NumFields > DSAFieldLimit) { foldNodeCompletely(); return true; } |