https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103320
Bug ID: 103320
Summary: Spec 2017 benchmark roms_r fails on PowerPC for -Ofast
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: regression
Assignee: unassigned at gcc dot gnu.org
Reporter: meissner at gcc dot gnu.org
Target Milestone: ---
The Spec 2017 benchmark roms_r compiles fine but produces the wrong output when
compiled with -Ofast options on both power9 and power10. In going back with
the previous runs that I've done on power10, it worked with sources checked out
on October 17th, but failed with sources checked out on November 4th and
November 17th.
I used the options:
-g -mlittle -save-temps=obj -ffast-math -Ofast -mcpu=power10 -mrecip \
-funroll-loops -m64 -finline-arg-packing -static-libgfortran \
-fstack-arrays -std=legacy -frandom-seed=spec2017
