[Bug lto/49302] [4.7 Regression] FAIL: gcc.dg/lto/20110201-1 c_lto_20110201-1_0.o-c_lto_20110201-1_0.o

[wschmidt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49302

--- Comment #2 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2011-06-07 11:51:56 UTC ---
I'll have a look.  With -ffast-math, cabs is converted to
sqrt(pow(rpart,2.0),pow(ipart,2.0)).  Not sure yet why the pow calls aren't
converted back to x*x form.  We may have to restore just that transformation to
the expander for builtin pow.  Will dig deeper today.