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* [Bug target/12538] New: sparc bug: gcc -mflat -fpic: l7 clobbered
@ 2003-10-08  9:38 fjh at cs dot mu dot oz dot au
  2003-10-08  9:40 ` [Bug target/12538] " fjh at cs dot mu dot oz dot au
                   ` (7 more replies)
  0 siblings, 8 replies; 9+ messages in thread
From: fjh at cs dot mu dot oz dot au @ 2003-10-08  9:38 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12538

           Summary: sparc bug: gcc -mflat -fpic: l7 clobbered
           Product: gcc
           Version: 3.2
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: fjh at cs dot mu dot oz dot au
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: sparc-sun-solaris2.8
  GCC host triplet: sparc-sun-solaris2.8
GCC target triplet: sparc-sun-solaris2.8

The attached source files demonstrate a bug with gcc-2.95.1 and gcc 3.2
on SPARCs.
The bug is that if you compile one file with no special options
(or with just `-mflat', or just `-fpic', but not both), and
another file with `-mflat -fpic', and link the two together, then in
the file compiled with no special options it treats register l7 as
a callee-save register, but in the file compiled with `-mflat -fpic'
it clobbers register l7 without saving it.

The attached program should output "1,2,3,4,5,6,7,8,9,10",
but on my system the program gets a Segmentation Fault instead.


^ permalink raw reply	[flat|nested] 9+ messages in thread
* [Bug target/12538] sparc bug: gcc -mflat -fpic: l7 clobbered
  2003-10-08  9:38 [Bug target/12538] New: sparc bug: gcc -mflat -fpic: l7 clobbered fjh at cs dot mu dot oz dot au
@ 2003-10-08  9:40 ` fjh at cs dot mu dot oz dot au
  2003-10-08  9:42 ` fjh at cs dot mu dot oz dot au
                   ` (6 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: fjh at cs dot mu dot oz dot au @ 2003-10-08  9:40 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12538



------- Additional Comments From fjh at cs dot mu dot oz dot au  2003-10-08 09:40 -------
Created an attachment (id=4898)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=4898&action=view)
test case part 1


^ permalink raw reply	[flat|nested] 9+ messages in thread
* [Bug target/12538] sparc bug: gcc -mflat -fpic: l7 clobbered
  2003-10-08  9:38 [Bug target/12538] New: sparc bug: gcc -mflat -fpic: l7 clobbered fjh at cs dot mu dot oz dot au
  2003-10-08  9:40 ` [Bug target/12538] " fjh at cs dot mu dot oz dot au
@ 2003-10-08  9:42 ` fjh at cs dot mu dot oz dot au
  2003-10-08  9:42 ` fjh at cs dot mu dot oz dot au
                   ` (5 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: fjh at cs dot mu dot oz dot au @ 2003-10-08  9:42 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12538



------- Additional Comments From fjh at cs dot mu dot oz dot au  2003-10-08 09:42 -------
Created an attachment (id=4899)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=4899&action=view)
test case part 2: x.c


^ permalink raw reply	[flat|nested] 9+ messages in thread
* [Bug target/12538] sparc bug: gcc -mflat -fpic: l7 clobbered
  2003-10-08  9:38 [Bug target/12538] New: sparc bug: gcc -mflat -fpic: l7 clobbered fjh at cs dot mu dot oz dot au
  2003-10-08  9:40 ` [Bug target/12538] " fjh at cs dot mu dot oz dot au
  2003-10-08  9:42 ` fjh at cs dot mu dot oz dot au
@ 2003-10-08  9:42 ` fjh at cs dot mu dot oz dot au
  2003-10-08 15:29 ` pinskia at gcc dot gnu dot org
                   ` (4 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: fjh at cs dot mu dot oz dot au @ 2003-10-08  9:42 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12538



------- Additional Comments From fjh at cs dot mu dot oz dot au  2003-10-08 09:42 -------
Created an attachment (id=4900)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=4900&action=view)
test case part 3: y.c


^ permalink raw reply	[flat|nested] 9+ messages in thread
* [Bug target/12538] sparc bug: gcc -mflat -fpic: l7 clobbered
  2003-10-08  9:38 [Bug target/12538] New: sparc bug: gcc -mflat -fpic: l7 clobbered fjh at cs dot mu dot oz dot au
                   ` (2 preceding siblings ...)
  2003-10-08  9:42 ` fjh at cs dot mu dot oz dot au
@ 2003-10-08 15:29 ` pinskia at gcc dot gnu dot org
  2003-10-09  7:40 ` [Bug target/12538] %l7 is call-clobbered with -mflat -fpic ebotcazou at gcc dot gnu dot org
                   ` (3 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2003-10-08 15:29 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12538



------- Additional Comments From pinskia at gcc dot gnu dot org  2003-10-08 15:29 -------
Can you try 3.3.1 as 3.2 is old?


^ permalink raw reply	[flat|nested] 9+ messages in thread
* [Bug target/12538] %l7 is call-clobbered with -mflat -fpic
  2003-10-08  9:38 [Bug target/12538] New: sparc bug: gcc -mflat -fpic: l7 clobbered fjh at cs dot mu dot oz dot au
                   ` (3 preceding siblings ...)
  2003-10-08 15:29 ` pinskia at gcc dot gnu dot org
@ 2003-10-09  7:40 ` ebotcazou at gcc dot gnu dot org
  2003-10-09  7:41 ` ebotcazou at gcc dot gnu dot org
                   ` (2 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: ebotcazou at gcc dot gnu dot org @ 2003-10-09  7:40 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12538


ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|minor                       |normal
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-10-09 07:40:47
               date|                            |
            Summary|sparc bug: gcc -mflat -fpic:|%l7 is call-clobbered with -
                   |l7 clobbered                |mflat -fpic
   Target Milestone|---                         |3.4
            Version|3.2                         |3.3.1


------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-10-09 07:40 -------
Confirmed with all GCC versions I tested.


^ permalink raw reply	[flat|nested] 9+ messages in thread
* [Bug target/12538] %l7 is call-clobbered with -mflat -fpic
  2003-10-08  9:38 [Bug target/12538] New: sparc bug: gcc -mflat -fpic: l7 clobbered fjh at cs dot mu dot oz dot au
                   ` (4 preceding siblings ...)
  2003-10-09  7:40 ` [Bug target/12538] %l7 is call-clobbered with -mflat -fpic ebotcazou at gcc dot gnu dot org
@ 2003-10-09  7:41 ` ebotcazou at gcc dot gnu dot org
  2003-10-13  9:58 ` cvs-commit at gcc dot gnu dot org
  2003-10-13 10:01 ` ebotcazou at gcc dot gnu dot org
  7 siblings, 0 replies; 9+ messages in thread
From: ebotcazou at gcc dot gnu dot org @ 2003-10-09  7:41 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12538


ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |ebotcazou at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED


^ permalink raw reply	[flat|nested] 9+ messages in thread
* [Bug target/12538] %l7 is call-clobbered with -mflat -fpic
  2003-10-08  9:38 [Bug target/12538] New: sparc bug: gcc -mflat -fpic: l7 clobbered fjh at cs dot mu dot oz dot au
                   ` (5 preceding siblings ...)
  2003-10-09  7:41 ` ebotcazou at gcc dot gnu dot org
@ 2003-10-13  9:58 ` cvs-commit at gcc dot gnu dot org
  2003-10-13 10:01 ` ebotcazou at gcc dot gnu dot org
  7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2003-10-13  9:58 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12538



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-10-13 09:57 -------
Subject: Bug 12538

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	ebotcazou@gcc.gnu.org	2003-10-13 09:57:53

Modified files:
	gcc            : ChangeLog 
	gcc/config/sparc: sparc.c 

Log message:
	PR target/12538
	* config/sparc/sparc.c (MUST_SAVE_REGISTER): Delete.
	(sparc_flat_must_save_register_p): New function to decide whether
	a register must be saved/restored in the function prologue/epilogue.
	(sparc_flat_compute_frame_size): Use it instead of MUST_SAVE_REGISTER.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.1398&r2=2.1399
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/sparc/sparc.c.diff?cvsroot=gcc&r1=1.263&r2=1.264


^ permalink raw reply	[flat|nested] 9+ messages in thread
* [Bug target/12538] %l7 is call-clobbered with -mflat -fpic
  2003-10-08  9:38 [Bug target/12538] New: sparc bug: gcc -mflat -fpic: l7 clobbered fjh at cs dot mu dot oz dot au
                   ` (6 preceding siblings ...)
  2003-10-13  9:58 ` cvs-commit at gcc dot gnu dot org
@ 2003-10-13 10:01 ` ebotcazou at gcc dot gnu dot org
  7 siblings, 0 replies; 9+ messages in thread
From: ebotcazou at gcc dot gnu dot org @ 2003-10-13 10:01 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12538


ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-10-13 10:01 -------
Fixed for GCC 3.4, see http://gcc.gnu.org/ml/gcc-patches/2003-10/msg00889.html


^ permalink raw reply	[flat|nested] 9+ messages in thread
end of thread, other threads:[~2003-10-13 10:01 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2003-10-08  9:38 [Bug target/12538] New: sparc bug: gcc -mflat -fpic: l7 clobbered fjh at cs dot mu dot oz dot au
2003-10-08  9:40 ` [Bug target/12538] " fjh at cs dot mu dot oz dot au
2003-10-08  9:42 ` fjh at cs dot mu dot oz dot au
2003-10-08  9:42 ` fjh at cs dot mu dot oz dot au
2003-10-08 15:29 ` pinskia at gcc dot gnu dot org
2003-10-09  7:40 ` [Bug target/12538] %l7 is call-clobbered with -mflat -fpic ebotcazou at gcc dot gnu dot org
2003-10-09  7:41 ` ebotcazou at gcc dot gnu dot org
2003-10-13  9:58 ` cvs-commit at gcc dot gnu dot org
2003-10-13 10:01 ` ebotcazou at gcc dot gnu dot org

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