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Re: [patch] builtins.c: Fix PR tree-optimization/15738.
> Shouldn't we try to put all the simplification/optimization stuff
> into fold_builtin_strchr, then have expand_builtin_strchr and
> expand_builtin_strrchr call the folder to simplify/optimize the call?
> That would avoid a lot of duplication.
> [ And yes, that applies to most of the fold_builtin_XXX stuff I
> added a while back. Let's start with fixing the simple ones ;-) ]
Yes, the code duplication is definitely a concern. I am thinking
about moving as much expand-time builtins optimizations as possible to
tree level, removing those expand-time optimizations, and then having
fold_builtin_BLAH call simplify_builtin_BLAH (or vive versa).