[Bug rtl-optimization/52326] [4.6 Regression] float result incorrect with -O1 and calling external function.

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52326

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |x86_64-*-*
             Status|UNCONFIRMED                 |NEW
      Known to work|                            |4.5.3, 4.7.0
           Keywords|                            |wrong-code
   Last reconfirmed|                            |2012-02-21
          Component|c                           |rtl-optimization
     Ever Confirmed|0                           |1
            Summary|float result incorrect with |[4.6 Regression] float
                   |-O1 and calling external    |result incorrect with -O1
                   |function.                   |and calling external
                   |                            |function.
   Target Milestone|---                         |4.6.3
      Known to fail|                            |4.6.0, 4.6.2

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-02-21 
13:20:34 UTC ---
Confirmed.  foo.c is unrelated and can be compiled with -O0.  Works with 4.5.3,
fails with 4.6.0 already, works with 4.7.  The tree level looks good to me.