[Bug tree-optimization/30088] [4.1/4.2 Regression] Unexpected compilation results: -O1 vs. -O1 -fstrict-aliasing

2007-12-26 Thread reichelt at gcc dot gnu dot org
--- Comment #16 from reichelt at gcc dot gnu dot org 2007-12-26 16:37 --- The following reduced testcase (which should return 0) returns 1 on the 4.1 branch and 4.2 branch when compiled with "-O -fstrict-aliasing" or "-O2" on i686-pc-linux-gnu: =

[Bug tree-optimization/30088] [4.1/4.2 Regression] Unexpected compilation results: -O1 vs. -O2

2007-12-26 Thread reichelt at gcc dot gnu dot org
--- Comment #15 from reichelt at gcc dot gnu dot org 2007-12-26 16:18 --- *** Bug 33573 has been marked as a duplicate of this bug. *** -- reichelt at gcc dot gnu dot org changed: What|Removed |Added ---

[Bug tree-optimization/33573] [4.1 regression] over-optimization in 4.1.2

2007-12-26 Thread reichelt at gcc dot gnu dot org
--- Comment #4 from reichelt at gcc dot gnu dot org 2007-12-26 16:18 --- Well, actually this seems to be a duplicate of PR 30088. *** This bug has been marked as a duplicate of 30088 *** -- reichelt at gcc dot gnu dot org changed: What|Removed |

[Bug tree-optimization/30088] [4.1/4.2 Regression] Unexpected compilation results: -O1 vs. -O2

2007-12-26 Thread reichelt at gcc dot gnu dot org
--- Comment #14 from reichelt at gcc dot gnu dot org 2007-12-26 16:17 --- The original testcase fails on i686-pc-linux-gnu with -O2 on the 4.1 branch and the 4.2 branch. -- reichelt at gcc dot gnu dot org changed: What|Removed |Added -