mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-02-10 04:33:40 +00:00
4241e4da85
First teach instcombine that sign bit checks only demand the sign bit, this allows simplify demanded bits to hack on expressions better. Second, teach instcombine that ashr is useless if only the sign bit is demanded. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39880 91177308-0d34-0410-b5e6-96231b3b80d8
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for the Low Level Virtual Machine, 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 HTML documentation provided in docs/index.html for further assistance with LLVM.