maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
312,892 Commits 23 Branches 0 Tags 2.2 GiB
C++ 39.1%
LLVM 35.7%
C 12.1%
Assembly 8.9%
Python 1.1%
Other 2.7%
Go to file
Simon Pilgrim ccb71b2985 Revert rL356864 : [X86][SSE41] Start shuffle combining from ZERO_EXTEND_VECTOR_INREG (PR40685) 
Enable SSE41 ZERO_EXTEND_VECTOR_INREG shuffle combines - for the PMOVZX(PSHUFD(V)) -> UNPCKH(V,0) pattern we reduce the shuffles (port5-bottleneck on Intel) at the expense of creating a zero (pxor v,v) and an extra register move - which is a good trade off as these are pretty cheap and in most cases it doesn't increase register pressure.

This also exposed a missed opportunity to use combine to ZERO_EXTEND_VECTOR_INREG with folded loads - even if we're in the float domain.
........
Causes PR41249

llvm-svn: 357057
 		2019-03-27 10:25:02 +00:00
clang Emit -Wfortify-source using DiagRuntimeBehaviour 2019-03-26 23:21:22 +00:00
clang-tools-extra Basic: Return a reference from FileManager::getVirtualFileSystem, NFC 2019-03-26 22:32:06 +00:00
compiler-rt Revert "[builtins] Rounding mode support for addxf3/subxf3" 2019-03-27 04:18:37 +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 sincos: Simplify declaration headers. 2019-03-13 07:13:34 +00:00
libcxx [libc++] Fix return value of snprintf_l() on Windows when buffer is too small 2019-03-26 19:51:30 +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 Revert "[lld] Reapply "Prevent duplicate files in debug line header in dwarf 5."" 2019-03-26 19:57:13 +00:00
lldb Fix a "memset clearing an object of non-trivial type" warning in DWARFFormValue 2019-03-27 10:02:36 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm Revert rL356864 : [X86][SSE41] Start shuffle combining from ZERO_EXTEND_VECTOR_INREG (PR40685) 2019-03-27 10:25:02 +00:00
openmp [libomptarget] Introduce LIBOMPTARGET_ENABLE_DEBUG cmake option. 2019-03-26 15:19:15 +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 Moving ManagedMemoryRewritePass when hybrid option is selected 2019-03-25 23:26:59 +00:00
pstl [pstl][NFC] Remove some warnings 2019-03-25 20:44:07 +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
…

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.