[Bug target/34215] [4.2 Regression] ICE in assign_386_stack_local, at config/i386/i386.c:13481

[Bug target/34215] [4.2 Regression] ICE in assign_386_stack_local, at config/i386/i386.c:13481

[tbm at cyrius dot com]

------- Comment #1 from tbm at cyrius dot com  2007-11-24 15:25 -------
Created an attachment (id=14630)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14630&action=view)
preprocessed source

Shows the problem with gcc 4.2 and with trunk from 20070916 and earlier.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34215

[Bug target/34215] New: [4.2 Regression] ICE in assign_386_stack_local, at config/i386/i386.c:13481

[tbm at cyrius dot com]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1089 bytes --]

[ Forwarded from http://bugs.debian.org/446714 ]

We're seeing the following ICE with 4.2:

(sid)1851:tbm@em64t: ~] gcc-4.2 -m32 -c -O dialign-t-prob.c
dialign-t-prob.c: In function ‘calc_score_dist’:
dialign-t-prob.c:11: warning: incompatible implicit declaration of built-in
function ‘pow’
dialign-t-prob.c:13: internal compiler error: in assign_386_stack_local, at
config/i386/i386.c:13481
Please submit a full bug report,
with preprocessed source if appropriate.

The same ICE happened with trunk from 20070916, but no longer happens
as of 20071020.  I've no idea if this got fixed or became latent.


-- 
           Summary: [4.2 Regression] ICE in assign_386_stack_local, at
                    config/i386/i386.c:13481
           Product: gcc
           Version: 4.2.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tbm at cyrius dot com
GCC target triplet: i386-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34215

[Bug target/34215] [4.2 Regression] ICE in assign_386_stack_local, at config/i386/i386.c:13481

[tbm at cyrius dot com]

------- Comment #2 from tbm at cyrius dot com  2007-11-24 15:26 -------
The reduced testcase only shows the problem with 4.2:


/* Testcase by Martin Michlmayr <tbm@cyrius.com> */

void calc_score_dist (int mxdlen, long double d, long double **dist)
{
  unsigned long i, scr2;
  for (i = 1; i <= mxdlen; i++)
  {
    for (scr2 = mxdlen; scr2 <= mxdlen + 10; scr2++)
    {
    }
    dist[i][scr2] *= pow(1.0 / d, i);
  }
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34215

[Bug target/34215] [4.2 Regression] ICE in assign_386_stack_local, at config/i386/i386.c:13481

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
   Target Milestone|---                         |4.2.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34215

[Bug target/34215] [4.2 Regression] ICE in assign_386_stack_local, at config/i386/i386.c:13481

[ubizjak at gmail dot com]

-- 

ubizjak at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|uros at gcc dot gnu dot org |
         AssignedTo|unassigned at gcc dot gnu   |ubizjak at gmail dot com
                   |dot org                     |
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
      Known to work|4.1.2                       |4.1.2 4.3.0
   Last reconfirmed|0000-00-00 00:00:00         |2007-11-26 12:51:08
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34215

[Bug target/34215] [4.2 Regression] ICE in assign_386_stack_local, at config/i386/i386.c:13481

[uros at gcc dot gnu dot org]

------- Comment #3 from uros at gcc dot gnu dot org  2007-11-26 14:23 -------
Subject: Bug 34215

Author: uros
Date: Mon Nov 26 14:22:59 2007
New Revision: 130439

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=130439
Log:
        PR target/34215
        * config/i386/i386.md (truncdfsf2): Select SLOT_TEMP stack slot if
        virtual registers are instantiated.
        (truncxfsf2): Ditto.
        (truncxfdf2): Ditto.

testsuite/ChangeLog:

        PR target/34215
        * gcc.target/i386/pr34215.c: New test.


Added:
    branches/gcc-4_2-branch/gcc/testsuite/gcc.target/i386/pr34215.c
Modified:
    branches/gcc-4_2-branch/gcc/ChangeLog
    branches/gcc-4_2-branch/gcc/config/i386/i386.md
    branches/gcc-4_2-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34215

[Bug target/34215] [4.2 Regression] ICE in assign_386_stack_local, at config/i386/i386.c:13481

[ubizjak at gmail dot com]

------- Comment #4 from ubizjak at gmail dot com  2007-11-26 14:24 -------
Fixed for 4.2 branch, latent on mainline.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34215

[Bug target/34215] [4.2 Regression] ICE in assign_386_stack_local, at config/i386/i386.c:13481

[uros at gcc dot gnu dot org]

------- Comment #5 from uros at gcc dot gnu dot org  2007-11-26 15:53 -------
Subject: Bug 34215

Author: uros
Date: Mon Nov 26 15:52:57 2007
New Revision: 130440

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=130440
Log:
        PR target/34215
        * config/i386/i386.md (truncdfsf2): Select SLOT_TEMP stack slot if
        virtual registers are instantiated.
        (truncxf<mode>2): Ditto.
        (floatsi<mode>2): Ditto.
        (floatdisf2): Ditto.
        (floatdidf2): Ditto.

testsuite/ChangeLog:

        PR target/34215
        * gcc.target/i386/pr34215.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr34215.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.md
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34215

[Bug target/34215] [4.2 Regression] ICE in assign_386_stack_local, at config/i386/i386.c:13481

[ubizjak at gmail dot com]

------- Comment #6 from ubizjak at gmail dot com  2007-11-26 15:54 -------
Fixed.


-- 

ubizjak at gmail dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34215