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Summary: See PR38731.
Reviewers: andreadb
Subscribers: mgorny, javed.absar, tschuett, gbedwell, andreadb, RKSimon, llvm-commits
Differential Revision: https://reviews.llvm.org/D55557
llvm-svn: 349332
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This fixes PR39261.
FetchStage is a misnomer. It causes confusion with the frontend fetch stage,
which we don't currently simulate. I decided to rename it into EntryStage
mainly because this is meant to be a "source" stage for all pipelines.
Differential Revision: https://reviews.llvm.org/D54268
llvm-svn: 346419
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Summary:
There isn't any actual dependency - there's one #include from CodeGen
but nothing from the header is actually used.
With this change we can use the MCA library from CodeGen without
circular dependencies (e.g. for scheduling).
Reviewers: andreadb
Reviewed By: andreadb
Authored By: orodley
Subscribers: mgorny, gbedwell, llvm-commits
Differential Revision: https://reviews.llvm.org/D52288
llvm-svn: 342706
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Many bots buildling with make have been broken for several days, e.g.
http://lab.llvm.org:8011/builders/lld-x86_64-darwin13
llvm-svn: 342336
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llvm-svn: 342148
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accordingly. NFC.
Summary:
This patch introduces llvm-mca as a library. The driver (llvm-mca.cpp), views, and stats, are not part of the library.
Those are separate components that are not required for the functioning of llvm-mca.
The directory has been organized as follows:
All library source files now reside in:
- `lib/HardwareUnits/` - All subclasses of HardwareUnit (these represent the simulated hardware components of a backend).
(LSUnit does not inherit from HardwareUnit, but Scheduler does which uses LSUnit).
- `lib/Stages/` - All subclasses of the pipeline stages.
- `lib/` - This is the root of the library and contains library code that does not fit into the Stages or HardwareUnit subdirs.
All library header files now reside in the `include` directory and mimic the same layout as the `lib` directory mentioned above.
In the (near) future we would like to move the library (include and lib) contents from tools and into the core of llvm somewhere.
That change would allow various analysis and optimization passes to make use of MCA functionality for things like cost modeling.
I left all of the non-library code just where it has always been, in the root of the llvm-mca directory.
The include directives for the non-library source file have been updated to refer to the llvm-mca library headers.
I updated the llvm-mca/CMakeLists.txt file to include the library headers, but I made the non-library code
explicitly reference the library's 'include' directory. Once we eventually (hopefully) migrate the MCA library
components into llvm the include directives used by the non-library source files will be updated to point to the
proper location in llvm.
Reviewers: andreadb, courbet, RKSimon
Reviewed By: andreadb
Subscribers: mgorny, javed.absar, tschuett, gbedwell, llvm-commits
Differential Revision: https://reviews.llvm.org/D50929
llvm-svn: 340755
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