http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54550
--- Comment #6 from Veiokej 2012-09-12 04:14:52 UTC
---
In the process of trying to create a demo, I think I found the problem.
Indeed, no math is taking place between when the value X is first computed and
stored to the list, and when it's comp
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54550
--- Comment #5 from Veiokej 2012-09-12 03:28:43 UTC
---
Johnathan,
Yes, I've read the floating point nonbug stuff. This isn't a nonbug.
Michael,
I understand your point, and thanks for the command line option. However, this
is a subtly differe
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54550
Bug #: 54550
Summary: GCC -O3 breaks floating point equality comparison
Classification: Unclassified
Product: gcc
Version: 4.6.3
Status: UNCONFIRMED
Severity: normal
||MinGW under WinXP
CC||pinskia at gmail dot com,
||veiokej at gmail dot com
--- Comment #1 from Veiokej 2012-03-28 05:36:49 UTC
---
Maybe this is due to the fact that the compiler has no
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52749
Bug #: 52749
Summary: Aliasing violation silently accepted
Classification: Unclassified
Product: gcc
Version: 4.6.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52705
--- Comment #3 from Veiokej 2012-03-28 03:58:24 UTC
---
-fno-strict-aliasing does indeed fix the problem, so I'm compelled to believe
your assertion that the code contains an aliasing violation.
For the record, would you mind simply indicating w
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52705
Bug #: 52705
Summary: Loop optimization failure with -O2 versus -O1
Classification: Unclassified
Product: gcc
Version: 4.6.1
Status: UNCONFIRMED
Severity: normal
Prio
