[Bug target/47372] New: [x32] internal compiler error: in simplify_subreg, at simplify-rtx.c:5222

[Bug target/47372] New: [x32] internal compiler error: in simplify_subreg, at simplify-rtx.c:5222

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47372

           Summary: [x32] internal compiler error: in simplify_subreg, at
                    simplify-rtx.c:5222
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com


On x32 branch, I got

[hjl@gnu-6 ilp32-10]$ cat x.i
typedef struct FILE FILE;
int _fwalk(int (*)(FILE *));
int __sflush(FILE *);
int
fflush(FILE *fp)
{
  return (_fwalk(__sflush));
}
[hjl@gnu-6 ilp32-10]$ make
/export/build/gnu/gcc-x32/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc-x32/build-x86_64-linux/gcc/ -S -o x.s -mx32 -O -g -fPIC
-dp  x.i
x.i: In function \u2018fflush\u2019:
x.i:8:1: internal compiler error: in simplify_subreg, at simplify-rtx.c:5222
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make: *** [x.s] Error 1
[hjl@gnu-6 ilp32-10]$

[Bug target/47372] [x32] internal compiler error: in simplify_subreg, at simplify-rtx.c:5222

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47372

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2011-01-20 13:41:02 UTC ---
A different crash:

[hjl@gnu-6 ilp32-11]$ cat x.i
typedef unsigned short ush;
typedef ush Pos;
extern ush prev[];
void fill_window( unsigned more, unsigned m)
{
    unsigned n;
    for (n = 0; n < (unsigned)(1<<15); n++) {
      (prev+0x8000)[n] = (Pos)(m >= 0x8000 ? m-0x8000 : 0);
    }
    for (n = 0; n < 0x8000; n++) {
      prev[n] = (Pos)(m >= 0x8000 ? m-0x8000 : 0);
    }
}
[hjl@gnu-6 ilp32-11]$ make
/export/build/gnu/gcc-x32/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc-x32/build-x86_64-linux/gcc/ -S -o x.s -mx32 -O2 -g
-fPIC -dp  x.i
x.i: In function \u2018fill_window\u2019:
x.i:13:1: internal compiler error: in loc_cmp, at var-tracking.c:2752
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make: *** [x.s] Error 1
[hjl@gnu-6 ilp32-11]$

[Bug target/47372] [x32] internal compiler error: in simplify_subreg, at simplify-rtx.c:5222

[hjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47372

--- Comment #2 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2011-01-20 13:46:14 UTC ---
Author: hjl
Date: Thu Jan 20 13:46:11 2011
New Revision: 169054

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169054
Log:
Fix ix86_delegitimize_address for x32 PIC

gcc/

2011-01-20  H.J. Lu  <hongjiu.lu@intel.com>

    PR target/47372
    * config/i386/i386.c (ix86_delegitimize_address): Call
    simplify_gen_subreg for PIC with ptr_mode only if modes of
    x and orig_x are different.

gcc/testsuite/

2011-01-20  H.J. Lu  <hongjiu.lu@intel.com>

    PR target/47372
    * gcc.target/i386/pr47372-1.c: New.
    * gcc.target/i386/pr47372-2.c: Likewise.

Added:
    branches/x32/gcc/testsuite/gcc.target/i386/pr47372-1.c
    branches/x32/gcc/testsuite/gcc.target/i386/pr47372-2.c
Modified:
    branches/x32/gcc/ChangeLog.x32
    branches/x32/gcc/config/i386/i386.c
    branches/x32/gcc/testsuite/ChangeLog.x32

[Bug target/47372] [x32] internal compiler error: in simplify_subreg, at simplify-rtx.c:5222

[dan at danny dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47372

--- Comment #3 from Dan Horak <dan at danny dot cz> 2011-03-04 15:46:23 UTC ---
Created attachment 23544
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23544
preprocessed source file

got the same ICE when building xulrunner on Fedora 15 on s390x with
gcc version 4.6.0 20110212 (Red Hat 4.6.0-0.7)

./vpx_scale/generic/yv12extend.c: In function 'vp8_yv12_extend_frame_borders':
./vpx_scale/generic/yv12extend.c:145:1: internal compiler error: in
simplify_subreg, at simplify-rtx.c:5222

will try to build again with gcc-4.6.0-0.12.fc15

[Bug target/47372] [x32] internal compiler error: in simplify_subreg, at simplify-rtx.c:5222

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47372

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-03-04 16:43:27 UTC ---
(In reply to comment #3)
> Created attachment 23544 [details]
> preprocessed source file
> 
> got the same ICE when building xulrunner on Fedora 15 on s390x with
> gcc version 4.6.0 20110212 (Red Hat 4.6.0-0.7)
> 
> ./vpx_scale/generic/yv12extend.c: In function 'vp8_yv12_extend_frame_borders':
> ./vpx_scale/generic/yv12extend.c:145:1: internal compiler error: in
> simplify_subreg, at simplify-rtx.c:5222
> 
> will try to build again with gcc-4.6.0-0.12.fc15

Please create new PR instead of hijacking an unrelated one unless you are sure
it is the same thing.  And it isn't in this case, your ICE which I've managed
to reproduce on the following reduced testcase is during var-tracking.

/* { dg-do compile } */
/* { dg-options "-g -Os" } */

typedef __SIZE_TYPE__ size_t;
extern inline __attribute__ ((__always_inline__))
void *
memset (void *x, int y, size_t z)
{
  return __builtin___memset_chk (x, y, z, __builtin_object_size (x, 0));
}

void
foo (unsigned char *x, unsigned char *y, unsigned char *z,
     unsigned char *w, unsigned int v, int u, int t)
{
  int i;
  for (i = 0; i < t; i++)
    {
      memset (z, x[0], v);
      memset (w, y[0], v);
      x += u;
    }
  __builtin_memcpy (z, x, u);
}

[Bug target/47372] [x32] internal compiler error: in simplify_subreg, at simplify-rtx.c:5222

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47372

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-03-04 18:40:04 UTC ---
s390 bug moved to PR47991.

[Bug target/47372] [x32] internal compiler error: in simplify_subreg, at simplify-rtx.c:5222

[hjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47372

--- Comment #6 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2011-07-26 21:44:01 UTC ---
Author: hjl
Date: Tue Jul 26 21:43:57 2011
New Revision: 176812

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176812
Log:
Call simplify_gen_subreg for PIC with mode of x.

2011-07-26  H.J. Lu  <hongjiu.lu@intel.com>

    PR target/47372
    * config/i386/i386.c (ix86_delegitimize_address): Call
    simplify_gen_subreg for PIC with mode of x only if modes of
    x and orig_x are different.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c

[Bug target/47372] [x32] internal compiler error: in simplify_subreg, at simplify-rtx.c:5222

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47372

Uros Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |x32
             Status|UNCONFIRMED                 |RESOLVED
                URL|                            |http://gcc.gnu.org/ml/gcc-p
                   |                            |atches/2011-07/msg02328.htm
                   |                            |l
         Resolution|                            |FIXED
   Target Milestone|---                         |4.7.0

--- Comment #7 from Uros Bizjak <ubizjak at gmail dot com> 2011-07-27 17:23:40 UTC ---
Fixed.

[Bug target/47372] [x32] internal compiler error: in simplify_subreg, at simplify-rtx.c:5222

[hjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47372

--- Comment #8 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2011-07-29 16:43:28 UTC ---
Author: hjl
Date: Fri Jul 29 16:43:25 2011
New Revision: 176937

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176937
Log:
Call simplify_gen_subreg with mode of x.

2011-07-26  H.J. Lu  <hongjiu.lu@intel.com>

    PR target/47372
    * config/i386/i386.c (ix86_delegitimize_address): Call
    simplify_gen_subreg for PIC with mode of x only if modes of
    x and orig_x are different.

Modified:
    branches/x32/gcc/ChangeLog.x32
    branches/x32/gcc/config/i386/i386.c

[Bug target/47372] [x32] internal compiler error: in simplify_subreg, at simplify-rtx.c:5222

[hjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47372

--- Comment #9 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2011-08-06 14:50:12 UTC ---
Author: hjl
Date: Sat Aug  6 14:50:05 2011
New Revision: 177513

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177513
Log:
Add testcases for PRs 47727/47372/47715.

2011-08-06  H.J. Lu  <hongjiu.lu@intel.com>

    PR middle-end/47727
    * gcc.dg/pr47727.c: New.

    PR target/47372
    * gcc.dg/pr47372-1.c: New.
    * gcc.dg/pr47372-2.c: Likewise.

    PR target/47715
    * gcc.dg/tls/pr47715-5.c: New.

Added:
    trunk/gcc/testsuite/gcc.dg/pr47372-1.c
    trunk/gcc/testsuite/gcc.dg/pr47372-2.c
    trunk/gcc/testsuite/gcc.dg/pr47727.c
    trunk/gcc/testsuite/gcc.dg/tls/pr47715-5.c
Modified:
    trunk/gcc/testsuite/ChangeLog