Gabriel Ravier <gabrav...@gmail.com> wrote: > On 8/21/21 10:19 PM, Stefan Kanthak wrote: >> Jakub Jelinek <ja...@redhat.com> wrote:
[...] >>> GCC doesn't do value range propagation of floating point values, not even >>> the special ones like NaNs, infinities, +/- zeros etc., and without that the >>> earlier ifs aren't taken into account for the earlier code. >> Ouch, to bad! That was but the very least expectation I had. >> And indeed, removing the 3 other if-clauses doesn't change how the >> final if-clause gets translated. [...] >>> You should file missed optimizations into gcc bugzilla where they can be >>> seen any time. You should better implement such missing optimisations your users might expect from a mature compiler. >> I don't have a bugzilla account, and I don't use GCC for anything serious. >> >> Stefan > > It's *that* demanding for you to create a Bugzilla account ? You (and everybody else) if free to use GCC bugzilla. Everybody and me is but also free NOT to use GCC bugzilla. Stefan
