[KnownBits] Add knownbits analysis for mulhs/mulu 'multiply high' instructions
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Thu, 18 Mar 2021 22:36:01 +0000 (22:36 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Fri, 19 Mar 2021 08:56:06 +0000 (08:56 +0000)
commita96897219daf43a1b90e1e0c9dbf20167c0c16af
treef8211e6b84b089e89425a705c84bb9d6582edafc
parent628f5c9da29b64777b96cb6787c06b14d288a792
[KnownBits] Add knownbits analysis for mulhs/mulu 'multiply high' instructions

Split off from D98857

https://reviews.llvm.org/D98866
llvm/include/llvm/Support/KnownBits.h
llvm/lib/Support/KnownBits.cpp
llvm/unittests/Support/KnownBitsTest.cpp