[PATCH] D155369: [clang][Interp] Implement __builtin_isnan()
Timm Bäder via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Sat Jul 15 09:06:01 PDT 2023
tbaeder marked 2 inline comments as done.
tbaeder added inline comments.
================
Comment at: clang/lib/AST/Interp/Function.h:180
+ // FIXME: Is there a better way to get this information?
+ if (getName() == "__builtin_isnan")
+ return true;
----------------
cor3ntin wrote:
> tbaeder wrote:
> > cor3ntin wrote:
> > > You can compare getBuiltinID(), which is better than using strings, it's what we seem to be doing elsewhere
> > Yeah but that still sucks. Is there no way to query whether the builtin has `t` set ("signature is meaningless, use custom typechecking"), regardless of the ID or name?
> `AstContext.BuiltinInfo.hasCustomTypechecking(F->getBuiltinID()))` seems to do that but i have no clue if you could use it on all functions without running into issues
>
That works indeed, thanks.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D155369/new/
https://reviews.llvm.org/D155369
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