[Octave-bug-tracker] [bug #54572] int64 does not saturate correctly in negative direction

[Rik]

Follow-up Comment #10, bug #54572 (project octave):

This looks to be compiler-dependent, as well as compiler option dependent.  I
have a development version of Octave compiled with gcc version 5.4.0 20160609
(Ubuntu 5.4.0-6ubuntu1~16.04.10) and the options '-O2'.  This version exhibits
the bad behavior.  I have another tree where I have compiled the same code
with the same compiler, but with the options '-ggdb3 -O0' (for debugging). 
This version works.  This may be a nasty upstream bug where certain
optimizations are not being done correctly.

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