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Amaury Sechet f1904bd7ad [DAGCombiner] fold (addcarry (xor a, -1), b, c) -> (subcarry b, a, !c) and flip carry. 
Summary:
As per title. DAGCombiner only mathes the special case where b = 0, this patches extends the pattern to match any value of b.

Depends on D57302

Reviewers: hfinkel, RKSimon, craig.topper

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D59208

llvm-svn: 366214
2019-07-16 15:17:00 +00:00
benchmarks Pull google/benchmark library to the LLVM tree 2018-08-28 09:42:41 +00:00
bindings [IR/DIVar] Add the flag for params that have unmodified value 2019-06-26 11:19:26 +00:00
cmake [cmake] Don't set install rules for tblgen if building utils is disabled 2019-07-15 19:04:04 +00:00
docs remove a duplicate declaration 2019-07-16 12:05:54 +00:00
examples [ORC] Add custom IR compiler configuration to LLJITBuilder to enable obj caches. 2019-07-10 17:24:24 +00:00
include [Object/llvm-readelf/llvm-readobj] - Improve error reporting when e_shstrndx is broken. 2019-07-16 11:07:30 +00:00
lib [DAGCombiner] fold (addcarry (xor a, -1), b, c) -> (subcarry b, a, !c) and flip carry. 2019-07-16 15:17:00 +00:00
projects Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
runtimes Setup testing target dependencies for default runtimes 2019-06-11 00:25:57 +00:00
test [DAGCombiner] fold (addcarry (xor a, -1), b, c) -> (subcarry b, a, !c) and flip carry. 2019-07-16 15:17:00 +00:00
tools [Object/llvm-readelf/llvm-readobj] - Improve error reporting when e_shstrndx is broken. 2019-07-16 11:07:30 +00:00
unittests [DWARF] Fix the reserved values for unit length in DWARFDebugLine. 2019-07-16 07:01:08 +00:00
utils Remove username from git-llvm script, erroneously added in 366197 2019-07-16 10:14:53 +00:00
.arcconfig [llvm] Set up .arcconfig to point to Diffusion L repository 2018-01-12 15:37:41 +00:00
.clang-format
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.gitattributes [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
.gitignore gitignore: Ignore Qt Creator project configuration files. NFC 2019-06-12 08:28:31 +00:00
CMakeLists.txt Add support for building with Python 3 2019-07-10 19:31:25 +00:00
CODE_OWNERS.TXT Update email address in CODE_OWNERS 2019-07-01 16:01:15 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT [test commit] Add my name to the CREDITS.TXT 2019-05-27 07:48:28 +00:00
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
llvm.spec.in Update structured references to the license to the new license. 2019-01-19 11:30:51 +00:00
LLVMBuild.txt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
README.txt Testing commit access 2019-02-19 20:38:51 +00:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

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