This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/53975] [ia64] Target register of a speculative load moved to a branch register prior to the chk.s instruction
- From: "steven at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 18 Jul 2012 23:18:02 +0000
- Subject: [Bug target/53975] [ia64] Target register of a speculative load moved to a branch register prior to the chk.s instruction
- Auto-submitted: auto-generated
- References: <bug-53975-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53975
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
CC| |amonakov at gcc dot gnu.org
Known to fail| |4.7.0, 4.7.1, 4.8.0
--- Comment #9 from Steven Bosscher <steven at gcc dot gnu.org> 2012-07-18 23:18:02 UTC ---
Hello Alexander, this bug is a problem in the selective scheduler. A general
register holding an ld8.s load is assigned to a branch register before the
chk.s. But the branch registers have no NaT flag so the machine throws an
exception. Could you have a look at this please?