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[Bug tree-optimization/26144] with -O3 and pointer casts, gcc skips if
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Feb 2006 01:02:28 -0000
- Subject: [Bug tree-optimization/26144] with -O3 and pointer casts, gcc skips if
- References: <bug-26144-12145@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from pinskia at gcc dot gnu dot org 2006-02-09 01:02 -------
You are violating aliasing rules which is why this does not work at -O3.
Either access the variable ptr as a "struct blah *" or use
-fno-strict-aliasing.
*** This bug has been marked as a duplicate of 21920 ***
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26144