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Sam Parker 52760bf435 [CGP] Limit distance between overflow math and cmp 
Inserting an overflowing arithmetic intrinsic can increase register
pressure by producing two values at a point where only one is needed,
while the second use maybe several blocks away. This increase in
pressure is likely to be more detrimental on performance than
rematerialising one of the original instructions.
    
So, check that the arithmetic and compare instructions are no further
apart than their immediate successor/predecessor.

Differential Revision: https://reviews.llvm.org/D59024

llvm-svn: 355823
 		2019-03-11 13:19:46 +00:00
clang Remove an unnecessary -f when cp'ing to a file that was just deleted. NFC. 2019-03-11 10:44:10 +00:00
clang-tools-extra [clangd] Respect Origin option in createStaticIndexingAction 2019-03-11 11:01:14 +00:00
compiler-rt [HWASan] Save + print registers when tag mismatch occurs in AArch64. 2019-03-08 21:22:35 +00:00
debuginfo-tests Set config.lit_tools_dir, which is needed by lit.llvm.initialize. 2018-11-06 21:54:27 +00:00
libclc Adjust documentation for git migration. 2019-01-29 16:37:27 +00:00
libcxx LWG 2843 "Unclear behavior of std::pmr::memory_resource::do_allocate()" 2019-03-09 00:38:19 +00:00
libcxxabi Revert "[runtimes] Move libunwind, libc++abi and libc++ to lib/ and include/" 2019-03-08 20:33:55 +00:00
libunwind Revert "[runtimes] Move libunwind, libc++abi and libc++ to lib/ and include/" 2019-03-08 20:33:55 +00:00
lld [LLD] Fixed flaky unit test based on build directory. 2019-03-08 22:33:22 +00:00
lldb Fix invalid use of StringRef::data in Socket::DecodeHostAndPort 2019-03-11 10:34:57 +00:00
llgo Adjust documentation for git migration. 2019-01-29 16:37:27 +00:00
llvm [CGP] Limit distance between overflow math and cmp 2019-03-11 13:19:46 +00:00
openmp [OpenMP][stats] Update stats gathering macros 2019-03-08 21:23:34 +00:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly [opaque pointer types] Update calls to CreateCall to pass the function 2019-02-08 19:30:46 +00:00
pstl [pstl] Fix missing parallel policy guards 2019-03-01 01:26:35 +00:00
.arcconfig Update monorepo .arcconfig with new project callsign. 2019-01-31 14:34:59 +00:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
README.md
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README.md

The LLVM Compiler Infrastructure

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