CP2K is currently miscompiled by gcc trunk. The last know good version is rev.
149159 first bad version is 149201. I've been able to narrow the problem down
to a miscompilation of 1 file, works fine at -O0, but goes wrong at -O1. I
don't have a runtime testcase (except running cp2k.sopt on
cp2k/tests/QS/H2O.inp), but the file to be attached (derived from
cp_linked_list_val.F) is maybe small & clear enough. I can also easily test a
number of compile time options.
--
Summary: [4.5 Regression] miscompilation at -O1
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jv244 at cam dot ac dot uk
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40726
