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path: root/llvm/lib/CodeGen/ParallelCG.cpp
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* [LTO] Add option to emit assembly from LTOCodeGeneratorTobias Edler von Koch2015-11-191-7/+8
| | | | | | | | | | This adds a new API, LTOCodeGenerator::setFileType, to choose the output file format for LTO CodeGen. A corresponding change to use this new API from llvm-lto and a test case is coming in a separate commit. Differential Revision: http://reviews.llvm.org/D14554 llvm-svn: 253622
* Support: Support LLVM_ENABLE_THREADS=0 in llvm/Support/thread.h.Peter Collingbourne2015-08-311-2/+2
| | | | | | | | Specifically, the header now provides llvm::thread, which is either a typedef of std::thread or a replacement that calls the function synchronously depending on the value of LLVM_ENABLE_THREADS. llvm-svn: 246402
* CodeGen: Introduce splitCodeGen and teach LTOCodeGenerator to use it.Peter Collingbourne2015-08-271-0/+95
llvm::splitCodeGen is a function that implements the core of parallel LTO code generation. It uses llvm::SplitModule to split the module into linkable partitions and spawning one code generation thread per partition. The function produces multiple object files which can be linked in the usual way. This has been threaded through to LTOCodeGenerator (and llvm-lto for testing purposes). Separate patches will add parallel LTO support to the gold plugin and lld. Differential Revision: http://reviews.llvm.org/D12260 llvm-svn: 246236
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