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e1e0468f14
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Philipp Tomsich e1e0468f14 [RISCV] Add isel-patterns to optimize (a < 1) into blez (a <= 0) 
The following code-sequence showed up in a testcase (isolated from
SPEC2017) for if-conversion and vectorization when searching for the
maximum in an array:
        addi    a2, zero, 1
        blt     a1, a2, .LBB0_5
which can be expressed as `bge zero,a1,.LBB0_5`/`blez a1,/LBB0_5`.

More generally, we want to express (a < 1) as (a <= 0).

This adds the required isel-pattern and updates the testcases.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D98449
2021-03-15 11:32:43 -07:00
benchmarks
bindings [Go] Fix bindings/go/llvm/IRBindings.cpp 2020-12-16 10:09:58 -08:00
cmake [CMake] Require python 3.6 if enabling LLVM test targets 2021-03-15 09:50:39 -07:00
docs [FileCheck] Add support for hex alternate form in FileCheck 2021-03-12 18:14:17 +00:00
examples [ORC] Fix some comments in the LLJITWithObjectLinkingLayerPlugin example. 2021-03-12 19:13:42 -08:00
include [AArch64] Implement __rndr, __rndrrs intrinsics 2021-03-15 17:51:48 +00:00
lib [RISCV] Add isel-patterns to optimize (a < 1) into blez (a <= 0) 2021-03-15 11:32:43 -07:00
projects llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
resources
runtimes [PR48898][CMake] Support MinGW Toolchain tool sin llvm_ExternalProject_Add 2021-03-02 22:45:05 +01:00
test [RISCV] Add isel-patterns to optimize (a < 1) into blez (a <= 0) 2021-03-15 11:32:43 -07:00
tools [JITLink][ORC] Make the LinkGraph available to modifyPassConfig. 2021-03-12 18:42:51 -08:00
unittests [AssumeBundles] Add nonnull/align to op bundle if noundef exists 2021-03-16 10:23:42 +09:00
utils [gn build] (semi-manually) port b136a74efc54 2021-03-15 12:51:12 -04:00
.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 [clangd] Store index in '.cache/clangd/index' instead of '.clangd/index' 2020-07-07 14:53:45 +02:00
CMakeLists.txt [CMake] Require python 3.6 if enabling LLVM test targets 2021-03-15 09:50:39 -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 [NFC] Add contributors names to CREDITS.TXT 2020-10-07 13:22:55 -04:00
LICENSE.TXT
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.