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* [llvm-mca] run clang-format on all files.Andrea Di Biagio2018-03-241-1/+0
| | | | | | This also addresses Simon's review comment in D44839. llvm-svn: 328428
* [llvm-mca] update the ResourcePressureView after r328335. NFC.Andrea Di Biagio2018-03-231-7/+7
| | | | | | This should have been part of r328335. I forgot to svn add these files. llvm-svn: 328340
* [llvm-mca] Simplify code. NFCAndrea Di Biagio2018-03-221-13/+11
| | | | llvm-svn: 328187
* [llvm-mca] Refactor event listeners to make the backend agnostic to event types.Clement Courbet2018-03-131-4/+7
| | | | | | | | | | Summary: This is a first step towards making the pipeline configurable. Subscribers: llvm-commits, andreadb Differential Revision: https://reviews.llvm.org/D44309 llvm-svn: 327389
* [llvm-mca] Views are now independent from resource masks. NFCIAndrea Di Biagio2018-03-101-5/+2
| | | | | | | | | This change removes method Backend::getProcResourceMasks() and simplifies some logic in the Views. This effectively removes yet another dependency between the views and the Backend. No functional change intended. llvm-svn: 327214
* [llvm-mca] LLVM Machine Code Analyzer.Andrea Di Biagio2018-03-081-0/+176
llvm-mca is an LLVM based performance analysis tool that can be used to statically measure the performance of code, and to help triage potential problems with target scheduling models. llvm-mca uses information which is already available in LLVM (e.g. scheduling models) to statically measure the performance of machine code in a specific cpu. Performance is measured in terms of throughput as well as processor resource consumption. The tool currently works for processors with an out-of-order backend, for which there is a scheduling model available in LLVM. The main goal of this tool is not just to predict the performance of the code when run on the target, but also help with diagnosing potential performance issues. Given an assembly code sequence, llvm-mca estimates the IPC (instructions per cycle), as well as hardware resources pressure. The analysis and reporting style were mostly inspired by the IACA tool from Intel. This patch is related to the RFC on llvm-dev visible at this link: http://lists.llvm.org/pipermail/llvm-dev/2018-March/121490.html Differential Revision: https://reviews.llvm.org/D43951 llvm-svn: 326998
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