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Matt Davis 271ce76352 [llvm-mca] Introduce the llvm-mca library and organize the directory 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
 		2018-08-27 17:16:32 +00:00
clang fix comment typo 2018-08-27 14:23:50 +00:00
clang-tools-extra [docs] Mention clangd-dev in clangd documentation 2018-08-27 15:38:49 +00:00
compiler-rt [scudo] Replace eraseHeader with compareExchangeHeader for Quarantined chunks 2018-08-24 18:21:32 +00:00
debuginfo-tests Revert "(Retry) Add a basic integration test for C++ smart pointers" 2018-08-20 19:53:33 +00:00
libclc amdgcn: Use __constant AS for amdgcn builtins. 2018-08-03 15:14:08 +00:00
libcxx Mark P0556 as 'in progress' 2018-08-27 16:07:01 +00:00
libcxxabi Port my recent changes from LLVM copy of the demangler: 2018-08-24 23:30:26 +00:00
libunwind NFC: Test commit access 2018-08-16 16:55:07 +00:00
lld fix comment typo 2018-08-27 14:22:25 +00:00
lldb Let the CompilerInstance create our clang ASTContext 2018-08-27 15:18:33 +00:00
llgo Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm [llvm-mca] Introduce the llvm-mca library and organize the directory accordingly. NFC. 2018-08-27 17:16:32 +00:00
openmp [OpenMP][Fix] Ensure comparison between unsigned values. 2018-08-27 14:52:20 +00:00
parallel-libs Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
polly [IR] Replace `isa<TerminatorInst>` with `isTerminator()`. 2018-08-26 09:51:22 +00:00
README.md
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README.md

Low Level Virtual Machine (LLVM)

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.