commit	15e894baeeb96612ae471fa83d1729a2d3388fc8	[log] [tgz]
author	Alex Bradbury <asb@lowrisc.org>	Thu Apr 26 14:04:18 2018 +0000
committer	Alex Bradbury <asb@lowrisc.org>	Thu Apr 26 14:04:18 2018 +0000
tree	8f583b8c1ac66b8b2fa6966366b02f4f472c8654
parent	e74f51924155bc6ee08ef527128dac9a645eccfd [diff]

[RISCV] Implement isZextFree

This returns true for 8-bit and 16-bit loads, allowing LBU/LHU to be selected
and avoiding unnecessary masks.

llvm-svn: 330943

llvm/lib/Target/RISCV/RISCVISelLowering.cpp[diff]
llvm/lib/Target/RISCV/RISCVISelLowering.h[diff]
llvm/test/CodeGen/RISCV/zext-with-load-is-free.ll[diff]

3 files changed

tree: 8f583b8c1ac66b8b2fa6966366b02f4f472c8654

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

README.md

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.