[PATCH] D109987: [NVVM] Update intrinsic definitions to include more attributes

[Johannes Doerfert via Phabricator via llvm-commits]

jdoerfert created this revision.
jdoerfert added reviewers: tra, jhuber6, ggeorgakoudis, tianshilei1992.
Herald added subscribers: bollu, jholewinski.
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A lot of NVVM intrinsics can use the default intrinsic attributes (e.g.,
nosync, nofree, ...) as well as `speculatable`. The latter is important
if we want to recompute intrinsics results instead of communicating them
via memory.

I did use default attributes for almost all `readnone` attributes but
speculatable only where I had reasonable confidence they cannot
experience UB. That said, someone should double check.

TODO: There seem to be various intrinsics marked `Commutative` which

  should not, e.g., fma and div.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D109987

Files:
  llvm/include/llvm/IR/IntrinsicsNVVM.td

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