diff options
Diffstat (limited to 'llvm/lib/Transforms/IPO/FunctionImport.cpp')
| -rw-r--r-- | llvm/lib/Transforms/IPO/FunctionImport.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/IPO/FunctionImport.cpp b/llvm/lib/Transforms/IPO/FunctionImport.cpp index d021b4a59a8..26d7db10880 100644 --- a/llvm/lib/Transforms/IPO/FunctionImport.cpp +++ b/llvm/lib/Transforms/IPO/FunctionImport.cpp @@ -71,6 +71,10 @@ static cl::opt<unsigned> ImportInstrLimit( "import-instr-limit", cl::init(100), cl::Hidden, cl::value_desc("N"), cl::desc("Only import functions with less than N instructions")); +static cl::opt<int> ImportCutoff( + "import-cutoff", cl::init(-1), cl::Hidden, cl::value_desc("N"), + cl::desc("Only import first N functions if N>=0 (default -1)")); + static cl::opt<float> ImportInstrFactor("import-instr-evolution-factor", cl::init(0.7), cl::Hidden, cl::value_desc("x"), @@ -276,11 +280,18 @@ static void computeImportForFunction( StringMap<FunctionImporter::ExportSetTy> *ExportLists = nullptr) { computeImportForReferencedGlobals(Summary, DefinedGVSummaries, ImportList, ExportLists); + static int ImportCount = 0; for (auto &Edge : Summary.calls()) { ValueInfo VI = Edge.first; DEBUG(dbgs() << " edge -> " << VI.getGUID() << " Threshold:" << Threshold << "\n"); + if (ImportCutoff >= 0 && ImportCount >= ImportCutoff) { + DEBUG(dbgs() << "ignored! import-cutoff value of " << ImportCutoff + << " reached.\n"); + continue; + } + VI = updateValueInfoForIndirectCalls(Index, VI); if (!VI) continue; @@ -343,6 +354,8 @@ static void computeImportForFunction( // Mark this function as imported in this module, with the current Threshold ProcessedThreshold = AdjThreshold; + ImportCount++; + // Make exports in the source module. if (ExportLists) { auto &ExportList = (*ExportLists)[ExportModulePath]; |
