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Jonathan Peyton f0682ac498 [OpenMP][Stats] Cleanup stats gathering code 
1) Remove unnecessary data from list node structure
2) Remove timerPair in favor of pushing/popping explicitTimers.
   This way, nested timers will work properly.
3) Fix #pragma omp critical timers
4) Add histogram capability
5) Add KMP_STATS_FILE formatting capability
6) Have time partitioned into serial & parallel by introducing
   partitionedTimers::exchange(). This also counts the number of serial regions
   in the executable.
7) Fix up the timers around OMP loops so that scheduling overhead and work are
   both counted correctly.
8) Fix up the iterations statistics so they count the number of iterations the
   thread receives at each loop scheduling event
9) Change timers so there is only one RDTSC read per event change
10) Fix up the outdated comments for the timers

Differential Revision: https://reviews.llvm.org/D49699

llvm-svn: 338276
 		2018-07-30 17:41:08 +00:00
clang [analyzer] Add missing state transition in IteratorChecker. 2018-07-30 16:14:59 +00:00
clang-tools-extra [clangd] Remove outdated comment. NFC 2018-07-30 15:55:13 +00:00
compiler-rt [XRay][compiler-rt] FDR Mode: Use mmap instead of internal allocator 2018-07-30 05:56:42 +00:00
debuginfo-tests [DebugInfo] LowerDbgDeclare: Add derefs when handling CallInst users 2018-07-26 20:56:53 +00:00
libclc atom: Use volatile pointers for cl_khr_{global,local}_int32_{base,extended}_atomics 2018-06-21 19:27:39 +00:00
libcxx [libc++] Exclude posix_l/strtonum fallback inclusion for newlib > 2.4 2018-07-27 20:02:58 +00:00
libcxxabi [demangler] Fix an oss-fuzz bug from r338138 2018-07-28 04:06:30 +00:00
libunwind [CMake] Include CMakeDependentOption in libunwind 2018-07-24 23:42:51 +00:00
lld [docs] Update ld.lld.1 2018-07-30 17:36:38 +00:00
lldb Remove friend class declarations from DWARFUnit and DWARFCompileUnit 2018-07-29 19:32:36 +00:00
llgo Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm [X86] Fix typo in comment. NFC 2018-07-30 17:34:31 +00:00
openmp [OpenMP][Stats] Cleanup stats gathering code 2018-07-30 17:41:08 +00:00
parallel-libs Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
polly [test] Remove non-JSPON comments in JSCOP file. NFC. 2018-07-28 01:11:45 +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.