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/tools/llvm-split/llvm-split.cpp | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'llvm/tools/llvm-split') diff --git a/llvm/tools/llvm-split/llvm-split.cpp b/llvm/tools/llvm-split/llvm-split.cpp index 059770fbf4a..04ca1936ed8 100644 --- a/llvm/tools/llvm-split/llvm-split.cpp +++ b/llvm/tools/llvm-split/llvm-split.cpp @@ -35,6 +35,10 @@ OutputFilename("o", cl::desc("Override output filename"), static cl::opt NumOutputs("j", cl::Prefix, cl::init(2), cl::desc("Number of output files")); +static cl::opt + PreserveLocals("preserve-locals", cl::Prefix, cl::init(false), + cl::desc("Split without externalizing locals")); + int main(int argc, char **argv) { LLVMContext &Context = getGlobalContext(); SMDiagnostic Err; @@ -61,7 +65,7 @@ int main(int argc, char **argv) { // Declare success. Out->keep(); - }); + }, PreserveLocals); return 0; } -- cgit v1.2.3