commit	1343814fb46e499f593a3e9ceaa03f4e55ce0ec3	[log] [tgz]
author	David Green <david.green@arm.com>	Thu Aug 01 11:22:03 2019 +0000
committer	David Green <david.green@arm.com>	Thu Aug 01 11:22:03 2019 +0000
tree	af60de795e2ba3508f716daeaa191b1e8d041b0c
parent	7d766c393ec8092e64e672ebcaa1dcf2e298e597 [diff]

[ARM] Fix for MVE VREV64

The VREV64 instruction is apparently unpredictable if Qd == Qm, due to the
cross-beat nature of the instruction. This adds an earlyclobber to Qd, which
seems to be the same way we deal with this on other instructions like the
write-back on loads and stores.

Differential Revision: https://reviews.llvm.org/D65502

llvm-svn: 367544

llvm/lib/Target/ARM/ARMInstrMVE.td[diff]
llvm/test/CodeGen/Thumb2/mve-shuffle.ll[diff]

2 files changed

tree: af60de795e2ba3508f716daeaa191b1e8d041b0c

clang/
clang-tools-extra/
compiler-rt/
debuginfo-tests/
libclc/
libcxx/
libcxxabi/
libunwind/
lld/
lldb/
llgo/
llvm/
openmp/
parallel-libs/
polly/
pstl/
.arcconfig
.clang-format
.clang-tidy
.gitignore
README.md

README.md

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.