[PATCH] D69878: Consoldiate internal denormal flushing controls

[Matt Arsenault via Phabricator via llvm-commits]

arsenm marked an inline comment as done.
arsenm added inline comments.


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Comment at: clang/lib/CodeGen/CGCall.cpp:1775
-    if (getLangOpts().OpenCL)
-      FuncAttrs.addAttribute("denorms-are-zero",
-                             llvm::toStringRef(CodeGenOpts.FlushDenorm));
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Anastasia wrote:
> arsenm wrote:
> > Anastasia wrote:
> > > so where would `denorms-are-zero` be emitted now (in case some out of tree implementations rely on this)?
> > Rely on in what sense? Do you have a concrete use of this?
> Since it has been emitted before in the module potentially some LLVM implementations could be using that attribute?
I'm disinclined to leave things around just in case some unknown user might have been using them. We've dropped attributes like this before (I think the less-precise-fp-mad one for disuse). This also isn't needed for correctness, so it should be pretty safe to drop


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https://reviews.llvm.org/D69878