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Roman Lebedev d87506678c [X86][TLI] DAGCombine: Unfold variable bit-clearing mask to two shifts.
Summary:
This adds a reverse transform for the instcombine canonicalizations
that were added in D47980, D47981.

As discussed later, that was worse at least for the code size,
and potentially for the performance, too.

https://rise4fun.com/Alive/Zmpl

Reviewers: craig.topper, RKSimon, spatel

Reviewed By: spatel

Subscribers: reames, llvm-commits

Differential Revision: https://reviews.llvm.org/D48768

llvm-svn: 336585
2018-07-09 19:06:42 +00:00
bindings [LLVM-C] [OCaml] Remove LLVMAddBBVectorizePass 2018-05-28 16:58:10 +00:00
cmake [cmake] Change WIN32 test to CMAKE_HOST_WIN32 2018-06-29 10:34:37 +00:00
docs nm: Add -no-weak flag for hiding weak symbols 2018-07-02 17:24:37 +00:00
examples [ORC] Update JITCompileCallbackManager to support multi-threaded code. 2018-05-30 01:57:45 +00:00
include [X86][TLI] DAGCombine: Unfold variable bit-clearing mask to two shifts. 2018-07-09 19:06:42 +00:00
lib [X86][TLI] DAGCombine: Unfold variable bit-clearing mask to two shifts. 2018-07-09 19:06:42 +00:00
projects [cmake] Support moving debuginfo-tests to llvm/projects 2017-12-12 17:06:08 +00:00
resources
runtimes Support for multiarch runtimes layout 2018-06-28 03:11:52 +00:00
test [X86][TLI] DAGCombine: Unfold variable bit-clearing mask to two shifts. 2018-07-09 19:06:42 +00:00
tools [dsymutil] Add support for outputting assembly 2018-07-09 16:58:48 +00:00
unittests [VPlan][LV] Introduce condition bit in VPBlockBase 2018-07-09 15:57:09 +00:00
utils [Utils] Fix gdb pretty printers to work with Python 3. 2018-07-09 18:51:50 +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
.gitattributes [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
.gitignore gitignore: Ignore .vs folder (VS2017 config files) 2017-04-08 00:16:58 +00:00
CMakeLists.txt Support for multiarch runtimes layout 2018-06-28 03:11:52 +00:00
CODE_OWNERS.TXT CODE_OWNERS: Take ownership of the MIPS backend 2018-06-21 09:59:44 +00:00
configure
CREDITS.TXT Update my information in the CREDITS file. 2018-06-15 20:02:11 +00:00
LICENSE.TXT Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm.spec.in
LLVMBuild.txt
README.txt Test commit: remove a blank line 2018-06-08 21:21:55 +00:00
RELEASE_TESTERS.TXT Remove myself from the release testers list. (NFC) 2018-06-20 21:25:50 +00:00

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