From d19d4d30d84cf6befcda72ff957bf31a7e4e7335 Mon Sep 17 00:00:00 2001 From: Sergei Larin Date: Mon, 18 Jan 2016 21:07:13 +0000 Subject: Add to the split module utility an SCC based method which allows not to globalize any local variables. Summary: Currently llvm::SplitModule as the first step globalizes all local objects, which might not be desirable in some scenarios. This change adds a new flag to llvm::SplitModule that uses SCC approach to search for a balanced partition without the need to externalize symbols. Such partition might not be possible or fully balanced for a given number of partitions, and is a function of the module properties (global/local dependencies within the module). Joint development Tobias Edler von Koch (tobias@codeaurora.org) and Sergei Larin (slarin@codeaurora.org) Subscribers: llvm-commits, joker.eph Differential Revision: http://reviews.llvm.org/D16124 llvm-svn: 258083 --- llvm/lib/CodeGen/ParallelCG.cpp | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'llvm/lib/CodeGen/ParallelCG.cpp') diff --git a/llvm/lib/CodeGen/ParallelCG.cpp b/llvm/lib/CodeGen/ParallelCG.cpp index e73ba029604..d93cb9192d4 100644 --- a/llvm/lib/CodeGen/ParallelCG.cpp +++ b/llvm/lib/CodeGen/ParallelCG.cpp @@ -44,7 +44,8 @@ llvm::splitCodeGen(std::unique_ptr M, ArrayRef OSs, StringRef CPU, StringRef Features, const TargetOptions &Options, Reloc::Model RM, CodeModel::Model CM, CodeGenOpt::Level OL, - TargetMachine::CodeGenFileType FileType) { + TargetMachine::CodeGenFileType FileType, + bool PreserveLocals) { StringRef TripleStr = M->getTargetTriple(); std::string ErrMsg; const Target *TheTarget = TargetRegistry::lookupTarget(TripleStr, ErrMsg); @@ -87,7 +88,7 @@ llvm::splitCodeGen(std::unique_ptr M, // Pass BC using std::move to ensure that it get moved rather than // copied into the thread's context. std::move(BC)); - }); + }, PreserveLocals); for (thread &T : Threads) T.join(); -- cgit v1.2.3