[Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1

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* [Bug rtl-optimization/26254]  New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1
@ 2006-02-13  4:50 kkojima at gcc dot gnu dot org
  2006-02-13  4:51 ` [Bug rtl-optimization/26254] [4.2 Regression] " pinskia at gcc dot gnu dot org
                   ` (11 more replies)
  0 siblings, 12 replies; 13+ messages in thread
From: kkojima at gcc dot gnu dot org @ 2006-02-13  4:50 UTC (permalink / raw)
  To: gcc-bugs

On sh4-*-linux-gnu, gcc.c-torture/compile/20011109-1.c with -O1
starts to fail:

testsuite/gcc.c-torture/compile/20011109-1.c:51: error: unrecognizable insn:
(insn 26 25 232 4 (parallel [
            (set (reg:SI 248)
                (gt:SI (reg:DF 246)
                    (reg:DF 247)))
            (use (reg/v:PSI 151 ))
        ]) -1 (insn_list:REG_DEP_TRUE 24 (insn_list:REG_DEP_TRUE 25 (nil)))
    (nil))

after -fmove-loop-invariants is enabled by default.
SH backend defines set insns whose destinations are the hard reg
like T_REG and R0_REG.  It seems that move_loop_invariants makes
such pattern into
  (set pseudo_reg_A ...) + (set hard_reg pseudo_reg_A)
and then the former insn fails to be recognized.


-- 
           Summary: FAIL: gcc.c-torture/compile/20011109-1.c,-O1
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kkojima at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: sh4-*-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26254


^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug rtl-optimization/26254] [4.2 Regression] FAIL: gcc.c-torture/compile/20011109-1.c,-O1
  2006-02-13  4:50 [Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1 kkojima at gcc dot gnu dot org
@ 2006-02-13  4:51 ` pinskia at gcc dot gnu dot org
  2006-02-13  4:56 ` pinskia at gcc dot gnu dot org
                   ` (10 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-02-13  4:51 UTC (permalink / raw)
  To: gcc-bugs



-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rakdver at gcc dot gnu dot
                   |                            |org
            Summary|FAIL: gcc.c-                |[4.2 Regression] FAIL:
                   |torture/compile/20011109-   |gcc.c-
                   |1.c,-O1                     |torture/compile/20011109-
                   |                            |1.c,-O1
   Target Milestone|---                         |4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26254


^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug rtl-optimization/26254] [4.2 Regression] FAIL: gcc.c-torture/compile/20011109-1.c,-O1
  2006-02-13  4:50 [Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1 kkojima at gcc dot gnu dot org
  2006-02-13  4:51 ` [Bug rtl-optimization/26254] [4.2 Regression] " pinskia at gcc dot gnu dot org
@ 2006-02-13  4:56 ` pinskia at gcc dot gnu dot org
  2006-02-13  5:15 ` 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 @ 2006-02-13  4:56 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #1 from pinskia at gcc dot gnu dot org  2006-02-13 04:56 -------
Could you try the patch referenced in PR 26222?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26254


^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug rtl-optimization/26254] [4.2 Regression] FAIL: gcc.c-torture/compile/20011109-1.c,-O1
  2006-02-13  4:50 [Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1 kkojima at gcc dot gnu dot org
  2006-02-13  4:51 ` [Bug rtl-optimization/26254] [4.2 Regression] " pinskia at gcc dot gnu dot org
  2006-02-13  4:56 ` pinskia at gcc dot gnu dot org
@ 2006-02-13  5:15 ` kkojima at gcc dot gnu dot org
  2006-02-13  5:15 ` 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 @ 2006-02-13  5:15 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #2 from kkojima at gcc dot gnu dot org  2006-02-13 05:14 -------
This case still fails with it.


-- 

kkojima at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.2.0                       |---


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26254


^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug rtl-optimization/26254] [4.2 Regression] FAIL: gcc.c-torture/compile/20011109-1.c,-O1
  2006-02-13  4:50 [Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1 kkojima at gcc dot gnu dot org
                   ` (2 preceding siblings ...)
  2006-02-13  5:15 ` kkojima at gcc dot gnu dot org
@ 2006-02-13  5:15 ` pinskia at gcc dot gnu dot org
  2006-02-13 12:26 ` rakdver at gcc dot gnu dot org
                   ` (7 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-02-13  5:15 UTC (permalink / raw)
  To: gcc-bugs



-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
   Target Milestone|---                         |4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26254


^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug rtl-optimization/26254] [4.2 Regression] FAIL: gcc.c-torture/compile/20011109-1.c,-O1
  2006-02-13  4:50 [Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1 kkojima at gcc dot gnu dot org
                   ` (3 preceding siblings ...)
  2006-02-13  5:15 ` pinskia at gcc dot gnu dot org
@ 2006-02-13 12:26 ` rakdver at gcc dot gnu dot org
  2006-02-13 13:08 ` kkojima at gcc dot gnu dot org
                   ` (6 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2006-02-13 12:26 UTC (permalink / raw)
  To: gcc-bugs



-- 

rakdver at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rakdver at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-02-13 12:26:35
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26254


^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug rtl-optimization/26254] [4.2 Regression] FAIL: gcc.c-torture/compile/20011109-1.c,-O1
  2006-02-13  4:50 [Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1 kkojima at gcc dot gnu dot org
                   ` (4 preceding siblings ...)
  2006-02-13 12:26 ` rakdver at gcc dot gnu dot org
@ 2006-02-13 13:08 ` kkojima at gcc dot gnu dot org
  2006-02-13 13:59 ` rakdver 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 @ 2006-02-13 13:08 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #3 from kkojima at gcc dot gnu dot org  2006-02-13 13:08 -------
Created an attachment (id=10834)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10834&action=view)
patch in testing

I'm testing the attached patch which defines a new target hook,
though I'm not sure if it is the right way.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26254


^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug rtl-optimization/26254] [4.2 Regression] FAIL: gcc.c-torture/compile/20011109-1.c,-O1
  2006-02-13  4:50 [Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1 kkojima at gcc dot gnu dot org
                   ` (5 preceding siblings ...)
  2006-02-13 13:08 ` kkojima at gcc dot gnu dot org
@ 2006-02-13 13:59 ` rakdver at gcc dot gnu dot org
  2006-02-13 19:53 ` rakdver at gcc dot gnu dot org
                   ` (4 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2006-02-13 13:59 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #4 from rakdver at gcc dot gnu dot org  2006-02-13 13:59 -------
Created an attachment (id=10835)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10835&action=view)
Other possible patch

This might be a safer choice; although it would be nice to get all conditions
right early, it might be too difficult to handle all the special cases of all
possible targets.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26254


^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug rtl-optimization/26254] [4.2 Regression] FAIL: gcc.c-torture/compile/20011109-1.c,-O1
  2006-02-13  4:50 [Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1 kkojima at gcc dot gnu dot org
                   ` (6 preceding siblings ...)
  2006-02-13 13:59 ` rakdver at gcc dot gnu dot org
@ 2006-02-13 19:53 ` rakdver at gcc dot gnu dot org
  2006-02-14  0:34 ` kkojima at gcc dot gnu dot org
                   ` (3 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2006-02-13 19:53 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #5 from rakdver at gcc dot gnu dot org  2006-02-13 19:53 -------
I have submited my patch, as it is useful regardless of whether the new hook
will be added or not.  I am not sure whether it is reasonable to introduce a
new target hook just to handle this special case; if you think so, please
submit your patch and we may discuss it in the mailing list.


-- 

rakdver at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |http://gcc.gnu.org/ml/gcc-
                   |                            |patches/2006-
                   |                            |02/msg01009.html
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26254


^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug rtl-optimization/26254] [4.2 Regression] FAIL: gcc.c-torture/compile/20011109-1.c,-O1
  2006-02-13  4:50 [Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1 kkojima at gcc dot gnu dot org
                   ` (7 preceding siblings ...)
  2006-02-13 19:53 ` rakdver at gcc dot gnu dot org
@ 2006-02-14  0:34 ` kkojima at gcc dot gnu dot org
  2006-03-03 18:19 ` patchapp at dberlin dot org
                   ` (2 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: kkojima at gcc dot gnu dot org @ 2006-02-14  0:34 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #6 from kkojima at gcc dot gnu dot org  2006-02-14 00:34 -------
I think your patch is the Right Thing.  It fixes all regressions I've seen with
-fmove-loop-invariants on trunk for x86 cross sh4-*-linux-gnu.  Thanks for
looking into this issue!


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26254


^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug rtl-optimization/26254] [4.2 Regression] FAIL: gcc.c-torture/compile/20011109-1.c,-O1
  2006-02-13  4:50 [Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1 kkojima at gcc dot gnu dot org
                   ` (8 preceding siblings ...)
  2006-02-14  0:34 ` kkojima at gcc dot gnu dot org
@ 2006-03-03 18:19 ` patchapp at dberlin dot org
  2006-03-13 12:28 ` rakdver at gcc dot gnu dot org
  2006-03-13 13:54 ` pinskia at gcc dot gnu dot org
  11 siblings, 0 replies; 13+ messages in thread
From: patchapp at dberlin dot org @ 2006-03-03 18:19 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #7 from patchapp at dberlin dot org  2006-03-03 18:19 -------
Subject: Bug number PR 26254

A patch for this bug has been added to the patch tracker.
The mailing list url for the patch is
http://gcc.gnu.org/ml/gcc-patches/2006-02/msg01009.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26254


^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug rtl-optimization/26254] [4.2 Regression] FAIL: gcc.c-torture/compile/20011109-1.c,-O1
  2006-02-13  4:50 [Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1 kkojima at gcc dot gnu dot org
                   ` (9 preceding siblings ...)
  2006-03-03 18:19 ` patchapp at dberlin dot org
@ 2006-03-13 12:28 ` rakdver at gcc dot gnu dot org
  2006-03-13 13:54 ` pinskia at gcc dot gnu dot org
  11 siblings, 0 replies; 13+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2006-03-13 12:28 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #8 from rakdver at gcc dot gnu dot org  2006-03-13 12:28 -------
Subject: Bug 26254

Author: rakdver
Date: Mon Mar 13 12:28:09 2006
New Revision: 111998

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=111998
Log:
        PR rtl-optimization/26254
        * loop-invariant.c (seq_insns_valid_p): New function.
        (move_invariant_reg): Only emit new code if it is valid.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/loop-invariant.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26254


^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug rtl-optimization/26254] [4.2 Regression] FAIL: gcc.c-torture/compile/20011109-1.c,-O1
  2006-02-13  4:50 [Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1 kkojima at gcc dot gnu dot org
                   ` (10 preceding siblings ...)
  2006-03-13 12:28 ` rakdver at gcc dot gnu dot org
@ 2006-03-13 13:54 ` pinskia at gcc dot gnu dot org
  11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-03-13 13:54 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #9 from pinskia at gcc dot gnu dot org  2006-03-13 13:54 -------
Fixed.


-- 

pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26254


^ permalink raw reply	[flat|nested] 13+ messages in thread

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2006-02-13  4:50 [Bug rtl-optimization/26254] New: FAIL: gcc.c-torture/compile/20011109-1.c,-O1 kkojima at gcc dot gnu dot org
2006-02-13  4:51 ` [Bug rtl-optimization/26254] [4.2 Regression] " pinskia at gcc dot gnu dot org
2006-02-13  4:56 ` pinskia at gcc dot gnu dot org
2006-02-13  5:15 ` kkojima at gcc dot gnu dot org
2006-02-13  5:15 ` pinskia at gcc dot gnu dot org
2006-02-13 12:26 ` rakdver at gcc dot gnu dot org
2006-02-13 13:08 ` kkojima at gcc dot gnu dot org
2006-02-13 13:59 ` rakdver at gcc dot gnu dot org
2006-02-13 19:53 ` rakdver at gcc dot gnu dot org
2006-02-14  0:34 ` kkojima at gcc dot gnu dot org
2006-03-03 18:19 ` patchapp at dberlin dot org
2006-03-13 12:28 ` rakdver at gcc dot gnu dot org
2006-03-13 13:54 ` pinskia at gcc dot gnu dot org

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