[llvm-bugs] [Bug 34259] LLVM intrinsic emitter should split Intrinsics.gen to minimize project rebuilds on Intrinsics*.td file chanes

via llvm-bugs llvm-bugs at lists.llvm.org
Thu Dec 12 11:07:05 PST 2019


Reid Kleckner <rnk at google.com> changed:

           What    |Removed                     |Added
                 CC|                            |chris.bieneman at gmail.com
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Reid Kleckner <rnk at google.com> ---
That patch landed, but there is more work that could be done to loosen the
coupling between targets and intrinsics.

Over the last year, the intrinsics tablegen files have changed 216 times:
$ git log --since='1 year' --format=oneline
../llvm/include/llvm/IR/Intrinsics*.td  | wc -l

41 of those are target independent intrinsics:
$ git log --since='1 year' --date relative --format=format:'%ad %an'
../llvm/include/llvm/IR/Intrinsics.td  | wc -l

It doesn't seem worth taking this further for now since it's easy to touch any
other header and trigger a rebuild of LLVM, so I think I'll close this.

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