This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/12111] sh-hms: sibling function call fails in interrupt handler with optimization
- From: "adx at swissonline dot ch" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 Jan 2004 20:29:46 -0000
- Subject: [Bug target/12111] sh-hms: sibling function call fails in interrupt handler with optimization
- References: <20030830181345.12111.adx@swissonline.ch>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From adx at swissonline dot ch 2004-01-19 20:29 -------
(In reply to comment #4)
> I just attached the assembly produced by the gcc 3.4 branch. Can you verify if
> it's still wrong? Thanks.
The code is correct. Although I am wondering why registers r8-r13 are being
saved to the stack (different to the original 3.3.1 non-optimized code). Are the
rules for register usage in interrupt handlers going to be changed in 3.4?
BTW, I now agree to comment #1. Sibcalling optimization must be disabled in
interrupt handlers.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |dhazeghi at yahoo dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12111