[Bug tree-optimization/53395] [4.8 Regression] The LAPACK functions i(d|s)amax are more than two times slower after revision 187183

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53395

--- Comment #7 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-05-21 
09:39:51 UTC ---
Note that if-conversion does not fold to not destroy valid gimple RHS and
to avoid canonicalizing the condition.  Producing a MAX_EXPR is certainly
fine of course ... (I'm to blame for not adding testcases for some of the
if-conversion improvements I've done in the last months ...)

But I suppose with the simple patch you at least need to gimplify the
result.