[Bug tree-optimization/78185] [5/6 Regression] Wrong branch optimization with -O1 on x86/x86_64

rguenth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Fri Nov 4 08:59:00 GMT 2016


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78185

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |4.4.7, 7.0
   Target Milestone|---                         |5.5
            Summary|Wrong branch optimization   |[5/6 Regression] Wrong
                   |with -O1 on x86/x86_64      |branch optimization with
                   |                            |-O1 on x86/x86_64
      Known to fail|                            |4.5.4, 4.6.4, 4.7.4, 4.8.5,
                   |                            |4.9.4, 5.4.0, 6.2.0

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed on trunk.  Earlier releases need -O2 to trigger this.  Can't reproduce
with 4.4 or earlier.


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