maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
329,186 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
David Green 94d379095a [Codegen] Alter the default promotion for saturating adds and subs 
The default promotion for the add_sat/sub_sat nodes currently does:
   1. ANY_EXTEND iN to iM
   2. SHL by M-N
   3. [US][ADD|SUB]SAT
   4. L/ASHR by M-N
If the promoted add_sat or sub_sat node is not legal, this can produce code
that effectively does a lot of shifting (and requiring large constants to be
materialised) just to use the overflow flag. It is simpler to just do the
saturation manually, using the higher bitwidth addition and a min/max against
the saturating bounds. That is what this patch attempts to do.

Differential Revision: https://reviews.llvm.org/D68643

llvm-svn: 374373
 		2019-10-10 16:04:49 +00:00
clang In openFileForRead don't cache erroneous entries if the error relates to them being directories. Add tests. 2019-10-10 15:29:01 +00:00
clang-tools-extra [libTooling] Move Transformer files to their own directory/library. 2019-10-10 02:34:47 +00:00
compiler-rt [Sanitizers] Fix getrandom test 2019-10-10 12:48:18 +00:00
debuginfo-tests Make nrvo-string test more robust. 2019-06-27 20:38:37 +00:00
libc Add few docs and implementation of strcpy and strcat. 2019-10-04 17:30:54 +00:00
libclc travis: Add LLVM 9 build 2019-09-27 05:58:15 +00:00
libcxx [libc++][test] Miscellaneous MSVC cleanups 2019-10-09 22:19:17 +00:00
libcxxabi [libc++abi] Introduce a LIBCXXABI_LIBRARY_VERSION option 2019-10-07 19:22:04 +00:00
libunwind [libunwind] Adjust libunwind_01.pass.cpp test for ARM EHABI 2019-10-03 17:01:04 +00:00
lld [LLD][ELF] Fix stale comments about doing ICF 2019-10-10 14:50:02 +00:00
lldb Increase timeout in gdbclientutils.py to decrease chance of test failing under ASAN. 2019-10-10 15:59:17 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [Codegen] Alter the default promotion for saturating adds and subs 2019-10-10 16:04:49 +00:00
openmp [OpenMP] Enable thread affinity on FreeBSD 2019-10-08 21:25:30 +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 [Alignment][NFC] Remove StoreInst::setAlignment(unsigned) 2019-10-03 13:17:21 +00:00
pstl [pstl] Allow customizing whether per-TU insulation is provided 2019-08-13 12:49:00 +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
.git-blame-ignore-revs Add LLDB reformatting to .git-blame-ignore-revs 2019-09-04 09:31:55 +00:00
.gitignore Add a newline at the end of the file 2019-09-04 06:33:46 +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.