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From: "kargl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/52138] Operations on complex values are not inlined, even with -O3
Date: Mon, 06 Feb 2012 18:51:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52138

kargl at gcc dot gnu.org changed:

           What    |Removed                     |Added
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                 CC|                            |kargl at gcc dot gnu.org

--- Comment #3 from kargl at gcc dot gnu.org 2012-02-06 18:50:41 UTC ---
(In reply to comment #2)
> I'm a bit confused... In the gfortran output the multiplication only about 40
> bytes. Does that mean that gfortran is using a reduced range by default?

>>From gcc/toplev.c

  /* With -fcx-limited-range, we do cheap and quick complex arithmetic.  */
  if (flag_cx_limited_range)
    flag_complex_method = 0;

  /* With -fcx-fortran-rules, we do something in-between cheap and C99.  */
  if (flag_cx_fortran_rules)
    flag_complex_method = 1;

So, yes, gfortran does something different than gcc.