https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86835
Marc Glisse <glisse at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-08-02
Component|c |tree-optimization
Ever confirmed|0 |1
--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
The recip pass messes up introducing the inverses:
powmult_reciptmp.7_5 = reciptmp.6_89(D) * reciptmp.6_89(D);
b_59 = MEM[(double *)params_57(D) + 8B];
reciptmp.6_6 = 1.0e+0 / b_59;
The first line should be last and use reciptmp.6_6.
