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Craig Topper 32b14b7a99 [RISCV] Improve register allocation for masked vwadd(u).wv, vwsub(u).wv, vfwadd.wv, and vfwsub.wv. 
The first source has the same EEW as the destination, but we're
using earlyclobber which prevents them from ever being the same
register.

To workaround this, add a special TIED pseudo to use whenever the
first source and merge operand are the same value. This allows
us to use a single operand for the merge operand and first source
which we can then tie to the destination. A tied source disables
earlyclobber for that operand.

Reviewed By: arcbbb

Differential Revision: https://reviews.llvm.org/D103211
2021-06-01 18:59:00 -07:00
benchmarks
bindings [SanitizeCoverage] Add support for NoSanitizeCoverage function attribute 2021-05-25 12:57:14 +02:00
cmake Pass -gcodeview-ghash when using clang-cl and lld-link 2021-05-27 20:49:17 -07:00
docs [LangRef] update according to unwinding support in inline asm 2021-05-31 09:01:46 +01:00
examples [ORC] Update SpeculativeJIT example for dispatchTask changes in 5344c88dcb2. 2021-05-10 09:30:46 -07:00
include [OpaquePtr] Create API to make a copy of a PointerType with some address space 2021-06-01 16:52:32 -07:00
lib [RISCV] Improve register allocation for masked vwadd(u).wv, vwsub(u).wv, vfwadd.wv, and vfwsub.wv. 2021-06-01 18:59:00 -07:00
projects llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
resources
runtimes [runtimes] Add the libc project to the list of runtimes. 2021-03-23 17:33:03 +00:00
test [RISCV] Improve register allocation for masked vwadd(u).wv, vwsub(u).wv, vfwadd.wv, and vfwsub.wv. 2021-06-01 18:59:00 -07:00
tools [llvm-readobj] Print function names with --bb-addr-map. 2021-06-01 18:40:42 -07:00
unittests [OpaquePtr] Create API to make a copy of a PointerType with some address space 2021-06-01 16:52:32 -07:00
utils [gn build] Port 924ea3bb53ca 2021-06-02 01:47:33 +00:00
.clang-format
.clang-tidy - Update .clang-tidy to ignore parameters of main like functions for naming violations in clang and llvm directory 2020-01-31 16:49:45 +00:00
.gitattributes Fix the "git modified" issue on the preserve-comments-crlf.s. 2019-09-10 12:17:49 +00:00
.gitignore Remove .gitignore entries not relevant in the monorepo. 2021-04-07 12:25:02 -07:00
CMakeLists.txt [CMake] Don't LTO optimize targets that aren't part of any distribution 2021-05-19 15:02:11 -07:00
CODE_OWNERS.TXT [M68k][CODE_OWNERS](0/8) Add code owner for the M68k target 2021-03-08 12:30:56 -08:00
configure
CREDITS.TXT Update personal info in CREDITS.TXT 2021-04-11 19:25:02 +08:00
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
README.txt Test commit. 2020-03-14 18:08:26 -07:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

README.txt 

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.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.