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* [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC
@ 2004-06-09  3:24 sugioka at itonet dot co dot jp
  2004-06-09  3:26 ` [Bug target/15886] " sugioka at itonet dot co dot jp
                   ` (11 more replies)
  0 siblings, 12 replies; 13+ messages in thread
From: sugioka at itonet dot co dot jp @ 2004-06-09  3:24 UTC (permalink / raw)
  To: gcc-bugs

Gcc-3.4.1 generates wrong code when compiling attached code with '-O2 -fPIC'.
Adding -fno-regmove fixes this.

Compile:
  $ sh-linux-gcc -O2 -fPIC -S dl-open.i

Miscompiled source code:
  args.caller_dl_open = __builtin_extract_return_addr (__builtin_return_address 
(0));

Generated wrong code:
  mov    r4,r11
  [snip]
  sts    pr,r0
  [snip]
  mov.l  r11,@(12,r14)       --- original pr should be stored to @(12,r14)

Correct code (-O2 -fPIC -fno-regmove):
  sts    pr,r10
  [snip]
  mov.l  r10,@(12,r14)

-- 
           Summary: [3.4.1] SH: Miscompilation with -O2 -fPIC
           Product: gcc
           Version: 3.4.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: sugioka at itonet dot co dot jp
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: sh-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15886


^ permalink raw reply	[flat|nested] 13+ messages in thread
* [Bug target/15886] [3.4.1] SH: Miscompilation with -O2 -fPIC
  2004-06-09  3:24 [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC sugioka at itonet dot co dot jp
@ 2004-06-09  3:26 ` sugioka at itonet dot co dot jp
  2004-06-09  3:28 ` pinskia at gcc dot gnu dot org
                   ` (10 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: sugioka at itonet dot co dot jp @ 2004-06-09  3:26 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From sugioka at itonet dot co dot jp  2004-06-09 03:26 -------
Created an attachment (id=6496)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6496&action=view)
testcase


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15886


^ permalink raw reply	[flat|nested] 13+ messages in thread
* [Bug target/15886] [3.4.1] SH: Miscompilation with -O2 -fPIC
  2004-06-09  3:24 [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC sugioka at itonet dot co dot jp
  2004-06-09  3:26 ` [Bug target/15886] " sugioka at itonet dot co dot jp
@ 2004-06-09  3:28 ` pinskia at gcc dot gnu dot org
  2004-06-11  2:12 ` kkojima at gcc dot gnu dot org
                   ` (9 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-06-09  3:28 UTC (permalink / raw)
  To: gcc-bugs



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15886


^ permalink raw reply	[flat|nested] 13+ messages in thread
* [Bug target/15886] [3.4.1] SH: Miscompilation with -O2 -fPIC
  2004-06-09  3:24 [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC sugioka at itonet dot co dot jp
  2004-06-09  3:26 ` [Bug target/15886] " sugioka at itonet dot co dot jp
  2004-06-09  3:28 ` pinskia at gcc dot gnu dot org
@ 2004-06-11  2:12 ` kkojima at gcc dot gnu dot org
  2004-06-11  5:58 ` pinskia at gcc dot gnu dot org
                   ` (8 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: kkojima at gcc dot gnu dot org @ 2004-06-11  2:12 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From kkojima at gcc dot gnu dot org  2004-06-11 02:12 -------
FYI, I could find a reduced testcase and analyze it. See
http://gcc.gnu.org/ml/gcc/2004-06/msg00721.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15886


^ permalink raw reply	[flat|nested] 13+ messages in thread
* [Bug target/15886] [3.4.1] SH: Miscompilation with -O2 -fPIC
  2004-06-09  3:24 [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC sugioka at itonet dot co dot jp
                   ` (2 preceding siblings ...)
  2004-06-11  2:12 ` kkojima at gcc dot gnu dot org
@ 2004-06-11  5:58 ` pinskia at gcc dot gnu dot org
  2004-06-11 13:07 ` giovannibajo at libero dot it
                   ` (7 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-06-11  5:58 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-11 05:58 -------
Kazumoto Kojima confirmed and analyzed it already.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-06-11 05:58:22
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15886


^ permalink raw reply	[flat|nested] 13+ messages in thread
* [Bug target/15886] [3.4.1] SH: Miscompilation with -O2 -fPIC
  2004-06-09  3:24 [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC sugioka at itonet dot co dot jp
                   ` (3 preceding siblings ...)
  2004-06-11  5:58 ` pinskia at gcc dot gnu dot org
@ 2004-06-11 13:07 ` giovannibajo at libero dot it
  2004-06-11 14:11 ` kkojima at gcc dot gnu dot org
                   ` (6 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: giovannibajo at libero dot it @ 2004-06-11 13:07 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From giovannibajo at libero dot it  2004-06-11 13:07 -------
KK, is this a regression? In your message you say that mainline and 3.4 exhibit 
the bug, but can you test it also on an older version?


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kkojima at gcc dot gnu dot
                   |                            |org
      Known to fail|                            |3.4.0 3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15886


^ permalink raw reply	[flat|nested] 13+ messages in thread
* [Bug target/15886] [3.4.1] SH: Miscompilation with -O2 -fPIC
  2004-06-09  3:24 [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC sugioka at itonet dot co dot jp
                   ` (4 preceding siblings ...)
  2004-06-11 13:07 ` giovannibajo at libero dot it
@ 2004-06-11 14:11 ` kkojima at gcc dot gnu dot org
  2004-06-11 14:17 ` [Bug target/15886] [3.3/3.4/3.5 Regression] " pinskia at gcc dot gnu dot org
                   ` (5 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: kkojima at gcc dot gnu dot org @ 2004-06-11 14:11 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From kkojima at gcc dot gnu dot org  2004-06-11 14:11 -------
Yep.  I've confirmed that 3.3.4 has the same problem and 3.2.3 doesn't.
So this is a regression from 3.2.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15886


^ permalink raw reply	[flat|nested] 13+ messages in thread
* [Bug target/15886] [3.3/3.4/3.5 Regression] SH: Miscompilation with -O2 -fPIC
  2004-06-09  3:24 [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC sugioka at itonet dot co dot jp
                   ` (5 preceding siblings ...)
  2004-06-11 14:11 ` kkojima at gcc dot gnu dot org
@ 2004-06-11 14:17 ` pinskia at gcc dot gnu dot org
  2004-06-11 15:27 ` pinskia at gcc dot gnu dot org
                   ` (4 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-06-11 14:17 UTC (permalink / raw)
  To: gcc-bugs



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |3.2.3
            Summary|[3.4.1] SH: Miscompilation  |[3.3/3.4/3.5 Regression] SH:
                   |with -O2 -fPIC              |Miscompilation with -O2 -
                   |                            |fPIC
   Target Milestone|---                         |3.4.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15886


^ permalink raw reply	[flat|nested] 13+ messages in thread
* [Bug target/15886] [3.3/3.4/3.5 Regression] SH: Miscompilation with -O2 -fPIC
  2004-06-09  3:24 [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC sugioka at itonet dot co dot jp
                   ` (6 preceding siblings ...)
  2004-06-11 14:17 ` [Bug target/15886] [3.3/3.4/3.5 Regression] " pinskia at gcc dot gnu dot org
@ 2004-06-11 15:27 ` pinskia at gcc dot gnu dot org
  2004-06-11 18:15 ` cvs-commit at gcc dot gnu dot org
                   ` (3 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-06-11 15:27 UTC (permalink / raw)
  To: gcc-bugs



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.1                       |3.4.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15886


^ permalink raw reply	[flat|nested] 13+ messages in thread
* [Bug target/15886] [3.3/3.4/3.5 Regression] SH: Miscompilation with -O2 -fPIC
  2004-06-09  3:24 [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC sugioka at itonet dot co dot jp
                   ` (7 preceding siblings ...)
  2004-06-11 15:27 ` pinskia at gcc dot gnu dot org
@ 2004-06-11 18:15 ` cvs-commit at gcc dot gnu dot org
  2004-08-23 20:58 ` mmitchel at gcc dot gnu dot org
                   ` (2 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-06-11 18:15 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-06-11 18:15 -------
Subject: Bug 15886

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	amylaar@gcc.gnu.org	2004-06-11 18:15:38

Modified files:
	gcc            : ChangeLog 

Log message:
	Add PR number in:
	PR 15886:
	* sh.h (ALLOCATE_INITIAL_VALUE): Use return_address_pointer_rtx.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.3925&r2=2.3926



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15886


^ permalink raw reply	[flat|nested] 13+ messages in thread
* [Bug target/15886] [3.3/3.4/3.5 Regression] SH: Miscompilation with -O2 -fPIC
  2004-06-09  3:24 [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC sugioka at itonet dot co dot jp
                   ` (8 preceding siblings ...)
  2004-06-11 18:15 ` cvs-commit at gcc dot gnu dot org
@ 2004-08-23 20:58 ` mmitchel at gcc dot gnu dot org
  2004-09-09  2:18 ` cvs-commit at gcc dot gnu dot org
  2004-09-09  2:33 ` pinskia at gcc dot gnu dot org
  11 siblings, 0 replies; 13+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2004-08-23 20:58 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-08-23 20:58 -------
Postponed until GCC 3.4.3.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.2                       |3.4.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15886


^ permalink raw reply	[flat|nested] 13+ messages in thread
* [Bug target/15886] [3.3/3.4/3.5 Regression] SH: Miscompilation with -O2 -fPIC
  2004-06-09  3:24 [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC sugioka at itonet dot co dot jp
                   ` (9 preceding siblings ...)
  2004-08-23 20:58 ` mmitchel at gcc dot gnu dot org
@ 2004-09-09  2:18 ` cvs-commit at gcc dot gnu dot org
  2004-09-09  2:33 ` pinskia at gcc dot gnu dot org
  11 siblings, 0 replies; 13+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-09-09  2:18 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-09-09 02:18 -------
Subject: Bug 15886

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	kkojima@gcc.gnu.org	2004-09-09 02:18:15

Modified files:
	gcc            : ChangeLog 
	gcc/config/sh  : sh.h 

Log message:
	PR 15886
	Backport from mainline:
	2004-06-11  J"orn Rennecke <joern.rennecke@superh.com>
	
	* sh.h (ALLOCATE_INITIAL_VALUE): Use return_address_pointer_rtx.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.616&r2=2.2326.2.617
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/sh/sh.h.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.230.4.3&r2=1.230.4.4



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15886


^ permalink raw reply	[flat|nested] 13+ messages in thread
* [Bug target/15886] [3.3/3.4/3.5 Regression] SH: Miscompilation with -O2 -fPIC
  2004-06-09  3:24 [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC sugioka at itonet dot co dot jp
                   ` (10 preceding siblings ...)
  2004-09-09  2:18 ` cvs-commit at gcc dot gnu dot org
@ 2004-09-09  2:33 ` pinskia at gcc dot gnu dot org
  11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-09-09  2:33 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From pinskia at gcc dot gnu dot org  2004-09-09 02:33 -------
Fixed in 3.4.3.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
      Known to fail|3.4.0 3.5.0                 |3.4.0
      Known to work|3.2.3                       |3.2.3 3.4.3
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15886


^ permalink raw reply	[flat|nested] 13+ messages in thread
end of thread, other threads:[~2004-09-09  2:33 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-06-09  3:24 [Bug target/15886] New: [3.4.1] SH: Miscompilation with -O2 -fPIC sugioka at itonet dot co dot jp
2004-06-09  3:26 ` [Bug target/15886] " sugioka at itonet dot co dot jp
2004-06-09  3:28 ` pinskia at gcc dot gnu dot org
2004-06-11  2:12 ` kkojima at gcc dot gnu dot org
2004-06-11  5:58 ` pinskia at gcc dot gnu dot org
2004-06-11 13:07 ` giovannibajo at libero dot it
2004-06-11 14:11 ` kkojima at gcc dot gnu dot org
2004-06-11 14:17 ` [Bug target/15886] [3.3/3.4/3.5 Regression] " pinskia at gcc dot gnu dot org
2004-06-11 15:27 ` pinskia at gcc dot gnu dot org
2004-06-11 18:15 ` cvs-commit at gcc dot gnu dot org
2004-08-23 20:58 ` mmitchel at gcc dot gnu dot org
2004-09-09  2:18 ` cvs-commit at gcc dot gnu dot org
2004-09-09  2:33 ` pinskia at gcc dot gnu dot org

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