https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83330
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Zdenek Sojka from comment #0)
> Also, I do not understand why bar() is apparently inlined, when the function
bar isn't inlined. Instead ipa-pure-const determines it is a const function
and because nothing really needs its return value, it is just not called at
all.
> has noinline,noclone attributes (noipa helps; -fno-ipa-pure-const helps
> too); but "noipa" implies just noinline,noclone,no_icf according to
> https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#Common-
> Function-Attributes
No, it doesn't say anything like that. It says it implies those attributes,
but is not a mere union of those 3 attributes, but disables many other IPA
optimizes between that function and the callers.
E.g. mere noinline, noclone, no_icf doesn't disable IPA VRP, or IPA bitwise
CCP, etc.
