[Bug middle-end/53823] [4.8 Regression] FAIL: gcc.c-torture/execute/930921-1.c execution at -O0 and -O1

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53823

John David Anglin <danglin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |NEW

--- Comment #16 from John David Anglin <danglin at gcc dot gnu.org> 2012-08-01 00:30:40 UTC ---
The first shift amount seems to come from this statement
in expand_mult_const:

     int log = alg->log[opno];

The algorithm choice seems cost related, so it's starting
to make a bit of sense that this broke in 189441.