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* Update the file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-191-4/+3
| | | | | | | | | | | | | | | | | to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
* Rename interface for querying physical hardware concurrencyTeresa Johnson2016-10-171-1/+1
| | | | | | | | | | Based on post-commit review for D25585/r284180, rename hardware_physical_concurrency to heavyweight_hardware_concurrency, to better reflect what type of tasks it should be used for and to enable other systems to map this to something other than the number of physical cores. llvm-svn: 284390
* Add interface for querying physical hardware concurrencyTeresa Johnson2016-10-141-0/+25
Summary: This will be used by ThinLTO to set the amount of backend parallelism, which performs better when restricted to the number of physical cores (on X86 at least, where getHostNumPhysicalCores is currently defined). If not available this falls back to thread::hardware_concurrency. Note I didn't add to the thread class since that is a typedef to std::thread where available. Reviewers: mehdi_amini Subscribers: beanz, llvm-commits, mgorny Differential Revision: https://reviews.llvm.org/D25585 llvm-svn: 284180
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