forked from OSchip/llvm-project
0f596814e9
Summary: The forwards compatibility strategy employed by MIPS is to consider registers to be infinitely sign-extended. Then on ISA's with a wider register, the result of existing instructions are sign-extended to register width and zero-extended counterparts are added. copy_u.w on MSA32 and copy_u.w on MSA64 violate this strategy and we have therefore corrected the MSA specs to fix this. We still keep track of sign/zero-extension during legalization but we now match copy_s.[wd] where required. No change required to clang since __builtin_msa_copy_u_[wd] will map to copy_s.[wd] where appropriate for the target. Reviewers: vkalintiris Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D13472 llvm-svn: 250887 |
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autoconf | ||
bindings | ||
cmake | ||
docs | ||
examples | ||
include | ||
lib | ||
projects | ||
resources | ||
test | ||
tools | ||
unittests | ||
utils | ||
.arcconfig | ||
.clang-format | ||
.clang-tidy | ||
.gitignore | ||
CMakeLists.txt | ||
CODE_OWNERS.TXT | ||
CREDITS.TXT | ||
LICENSE.TXT | ||
LLVMBuild.txt | ||
Makefile | ||
Makefile.common | ||
Makefile.config.in | ||
Makefile.rules | ||
README.txt | ||
configure | ||
llvm.spec.in |
README.txt
Low Level Virtual Machine (LLVM) ================================ 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're writing a package for LLVM, see docs/Packaging.rst for our suggestions.