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Daniel Neilson 71fa1b904a [DSE] Teach the pass about partial overwrite of atomic memory intrinsics 
Summary:
This change teaches DSE that the atomic memory intrinsics can be overwriten
partially in the same way as the non-atomic forms. Specifically, that the
atomic memcpy & memset can be shortened at the end and that the atomic memset
can be shortened at the beginning, if they partially overwritten
by later stores.

Reviewers: mkazantsev, skatkov, apilipenko, efriedma, rsmith, spatel, filcab, sanjoy

Reviewed By: efriedma

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D45584

llvm-svn: 331991
 		2018-05-10 15:12:49 +00:00
clang This patch provides that bitfields are splitted even in case 2018-05-10 12:31:12 +00:00
clang-tools-extra Revert "[clang-tidy] Adding RestrictSystemIncludes check to Fuchsia module" 2018-05-09 22:28:18 +00:00
compiler-rt [sanitizer] Attempt to fix strace_test.cc on ppc64le 2018-05-10 08:16:23 +00:00
debuginfo-tests [Darwin] Specify DWARF 2/4 when running apple accelerator tests. 2018-02-26 20:56:45 +00:00
libclc remquo: Flush denormals if not supported 2018-05-03 05:44:28 +00:00
libcxx Allow copy elision in path concatenation 2018-05-09 18:57:17 +00:00
libcxxabi Fix test failure for missing _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS 2018-05-03 12:44:27 +00:00
libunwind [cmake] Remove duplicate command line options from build 2018-04-05 20:27:50 +00:00
lld [ELF] - Improve the test cases for notes sections. 2018-05-10 13:45:34 +00:00
lldb Fix one more RunShellcommand occurence in mac code 2018-05-10 12:02:24 +00:00
llgo
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llvm [DSE] Teach the pass about partial overwrite of atomic memory intrinsics 2018-05-10 15:12:49 +00:00
openmp [OMPT] Fix thread_num for implicit_task_end callbacks in nested parallel regions 2018-05-07 12:42:21 +00:00
parallel-libs
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polly Adjust to debug info metadata format change. 2018-05-10 07:09:10 +00:00
README.md Add an svn project to contain the files that appear at the root of the 2017-10-19 21:09:49 +00:00

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.