[cfe-dev] is LLVM IR suitable for your library Optimization?

[dalas via cfe-dev]

Hi, One question got in my head recently from the slides "MLIR Primer : 
A Compiler Infrastructure for the End of Moore's Law"

When trying to optimize the source code based on LLVM IR, Do the 
compiler developers and the SW Library developers feel enough to improve 
easily? Wouldn't it be hard for them to handle the Low-Level IR to 
optimize? This question kept in my mind because I can't catch the 
capability whether the LLVM IR is the best optimization Intermediate 
Language for Library Developer. Mostly the Library optimization is 
switching the Function, Function Parameters, Loop unrolling, etc. Does 
it really need to be done with SSA-form, RISC-like IR format to do all 
these? If there is a more C-like or C++-like IR, wouldn't it be more 
easy for Library Maintainer, such as ML Developer, Math Library, 
MultiThreading Library, etc?


So I want to know what the practical developers feel about the current 
LLVM IR form to perform various optimization. Whether the RISC-like IR 
is better for the higher-level Optimization skills. Thanks for reading 
and answering the question. Peace Out!


P.S. This question is not intended to discourage the LLVM IR 
development, but just pops up the talk on whether there could be more 
better solution on Clang Environment.