llvm-project

0112f12e - [EarlyCSE] Remove void return restriction for call CSE (#145320)

[EarlyCSE] Remove void return restriction for call CSE (#145320) For readonly/readnone calls returning void we can't CSE the return value. However, making these participate in CSE is still useful, because it allows DCE of calls that are not willreturn/nounwind (something no other part of LLVM is capable of removing). The more interesting use-case is CSE for writeonly calls (not yet supported), but I figured this change makes sense independently. There is no impact on compile-time.