http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57967
Richard Earnshaw <rearnsha at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-07-24
Known to work| |4.8.2
Summary|Incorrect code generated on |[4.7 regresssion] Incorrect
|ARM with |code generated on ARM with
|-fexpensive-optimizations |-fexpensive-optimizations
Ever confirmed|0 |1
--- Comment #3 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
This appears to be a bug in combine. My suspicion lies with the new 4-way
combine code that was added around gcc-4.6.
Note that gcc-4.6 is no-longer being maintained.
The problem seems to be fixed in 4.8 so a bisect might indicate a fix.
