[Bug c/26774] New: Out of memory compiling 9-line Delta-reduced Linux kernel driver msp3400.c

[Bug c/26774] New: Out of memory compiling 9-line Delta-reduced Linux kernel driver msp3400.c

[flash at pobox dot com]

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The attached 9-line file causes a checking=all build of GCC 4.1.0 to exhaust
memory, on both Ubuntu Linux 5.04/2.6.10-6-386 and Mac OSX 10.4.5.  It's a
Delta-reduced version of a preprocessed version of the Linux Kernel file
drivers/media/video/msp3400.c, which exhibited the same behavior.  The original
compilation was being done by a test script outside the kernel tree, so the
compilation encountered errors; the preprocessed file is invalid C, as is the
Delta-reduced version.
    My checking=all builds of GCC 4.0.1 (patched) and 4.02 each give a
segmentation fault.  GCC 3.3.5 (Debian 1:3.3.5-8ubuntu2) gives up cleanly:
"confused by earlier errors, bailing out".
    On the non-reduced preprocessed file, with my patched checking build of
4.0.1, I instead get the following, which seems like PR22028, which is
presumably fixed: 
        internal compiler error: tree check: expected class ‘type’, have
‘exceptional’ (error_mark) in 
        gimplify_type_sizes, at gimplify.c:4368

    Here's the session; I'll attached the preprocessed file and the
Delta-reduction.  I used ulimit on Ubuntu to save time; fully exhausting memory
on OSX (where ulimit doesn't seem to work) with the unreduced file took half an
hour, but memory use gets above 50MB fairly quickly.

3> ulimit -m 50000 -v 50000
 flash@traska scripts 20:11:53
4> /opt/gcc410-chk-all/bin/gcc -v
../cpp/bugfiles/GCC_bugfiles/error/122285_msp3400_min.i
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: /opt/Gcc-4.1.0-dist/configure --enable-checking=all
--prefix=/opt/gcc410-chk-all --enable-languages=c,c++ --with-comment=PalmSource
checking=all build by Flash Sheridan 3/17/06
Thread model: posix
gcc version 4.1.0
 /home/opt/gcc410-chk-all/bin/../libexec/gcc/i686-pc-linux-gnu/4.1.0/cc1
-fpreprocessed ../cpp/bugfiles/GCC_bugfiles/error/122285_msp3400_min.i -quiet
-dumpbase 122285_msp3400_min.i -mtune=pentiumpro -auxbase 122285_msp3400_min
-version -o /tmp/ccV7UEre.s
GNU C version 4.1.0 (i686-pc-linux-gnu)
        compiled by GNU C version 3.3.5 (Debian 1:3.3.5-8ubuntu2).
GGC heuristics: --param ggc-min-expand=0 --param ggc-min-heapsize=0
Compiler executable checksum: a68040354320563d9f0f04c1edf3c815
../cpp/bugfiles/GCC_bugfiles/error/122285_msp3400_min.i:3: warning: ‘struct
i2c_client’ declared inside parameter list
../cpp/bugfiles/GCC_bugfiles/error/122285_msp3400_min.i:3: warning: its scope
is only this definition or declaration, which is probably not what you want
../cpp/bugfiles/GCC_bugfiles/error/122285_msp3400_min.i:4: error: field
‘driver’ has incomplete type
../cpp/bugfiles/GCC_bugfiles/error/122285_msp3400_min.i:6: error: two or more
data types in declaration specifiers
../cpp/bugfiles/GCC_bugfiles/error/122285_msp3400_min.i:6: warning: ‘struct
i2c_client’ declared inside parameter list
../cpp/bugfiles/GCC_bugfiles/error/122285_msp3400_min.i:8: warning:
initialization from incompatible pointer type
virtual memory exhausted: Cannot allocate memory
 flash@traska scripts 20:14:31


---
PalmSource bug #122285
http://pobox.com/~flash
Quality Lead for Compilers and Debuggers
PalmSource, Inc. Tools Quality Management


-- 
           Summary: Out of memory compiling 9-line Delta-reduced Linux
                    kernel driver msp3400.c
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: flash at pobox dot com
  GCC host triplet: i686-pc-linux-gnu, powerpc-apple-darwin8.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26774

[Bug c/26774] Out of memory compiling 9-line Delta-reduced Linux kernel driver msp3400.c

[flash at pobox dot com]

------- Comment #1 from flash at pobox dot com  2006-03-21 04:22 -------
Created an attachment (id=11075)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11075&action=view)
Delta-reduced version


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26774

[Bug c/26774] Out of memory compiling 9-line Delta-reduced Linux kernel driver msp3400.c

[flash at pobox dot com]

------- Comment #2 from flash at pobox dot com  2006-03-21 04:23 -------
Created an attachment (id=11076)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11076&action=view)
Unreduced preprocessed file


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26774

[Bug c/26774] Out of memory compiling 9-line Delta-reduced Linux kernel driver msp3400.c

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2006-03-21 09:37 -------
Confirmed.  Though the unreduced testcase does not build for me.  The testcase
in question is

struct i2c_driver {
 struct module *owner;
 int (*command)(struct i2c_client *client,unsigned int cmd, void *arg);
 struct device_driver driver;
}
static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg);
static struct i2c_driver driver = {
        .command = msp_command,
},


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Keywords|                            |error-recovery, ice-on-
                   |                            |invalid-code
   Last reconfirmed|0000-00-00 00:00:00         |2006-03-21 09:37:33
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26774

[Bug c/26774] [4.0/4.1/4.2 Regression] Out of memory compiling 9-line Delta-reduced Linux kernel driver msp3400.c

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2006-03-21 09:38 -------
3.4 is confused by earlier errors and bails out.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |4.0.3 4.1.0
      Known to work|                            |3.4.6
            Summary|Out of memory compiling 9-  |[4.0/4.1/4.2 Regression] Out
                   |line Delta-reduced Linux    |of memory compiling 9-line
                   |kernel driver msp3400.c     |Delta-reduced Linux kernel
                   |                            |driver msp3400.c


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26774

[Bug c/26774] [4.0/4.1/4.2 Regression] Out of memory compiling 9-line Delta-reduced Linux kernel driver msp3400.c

[carlos at codesourcery dot com]

------- Comment #5 from carlos at codesourcery dot com  2006-04-04 15:00 -------
Created an attachment (id=11201)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11201&action=view)
Fix parser error handling

The patch fixes this issue. No regressions on i686-pc-linux-gnu.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26774

[Bug c/26774] [4.0/4.1/4.2 Regression] Out of memory compiling 9-line Delta-reduced Linux kernel driver msp3400.c

[carlos at codesourcery dot com]

------- Comment #6 from carlos at codesourcery dot com  2006-04-04 15:01 -------
I'll submit the patch to gcc-patches and check it in when approved.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26774

[Bug c/26774] [4.0/4.1/4.2 Regression] Out of memory compiling 9-line Delta-reduced Linux kernel driver msp3400.c

[carlos at gcc dot gnu dot org]

------- Comment #7 from carlos at gcc dot gnu dot org  2006-04-20 00:21 -------
Subject: Bug 26774

Author: carlos
Date: Thu Apr 20 00:21:51 2006
New Revision: 113107

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=113107
Log:
gcc/

2006-04-19  Carlos O'Donell  <carlos@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        PR c/26774
        * stor-layout.c (update_alignment_for_field): Do not align 
        ERROR_MARK nodes.
        (place_union_field): Place union field at the start of the union.
        (place_field): Move ERROR_MARK check later, and use the current
        allocation position to maintain monotonicity.

gcc/testsuite/

2006-04-19  Carlos O'Donell  <carlos@codesourcery.com>

        PR c/26774
        * gcc.dg/struct-parse-1.c: New test case.


Added:
    trunk/gcc/testsuite/gcc.dg/struct-parse-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/stor-layout.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26774

[Bug c/26774] [4.0/4.1/4.2 Regression] Out of memory compiling 9-line Delta-reduced Linux kernel driver msp3400.c

[carlos at gcc dot gnu dot org]

------- Comment #8 from carlos at gcc dot gnu dot org  2006-04-21 23:43 -------
Subject: Bug 26774

Author: carlos
Date: Fri Apr 21 23:42:43 2006
New Revision: 113155

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=113155
Log:

gcc/

2006-04-21  Carlos O'Donell  <carlos@codesourcery.com>

        Backport from mainline:
        2006-04-19  Carlos O'Donell  <carlos@codesourcery.com>
                    Nathan Sidwell  <nathan@codesourcery.com>
        PR c/26774
        * stor-layout.c (update_alignment_for_field): Do not align 
        ERROR_MARK nodes.
        (place_union_field): Place union field at the start of the union.
        (place_field): Move ERROR_MARK check later, and use the current
        allocation position to maintain monotonicity.

gcc/testsuite/

2006-04-21  Carlos O'Donell  <carlos@codesourcery.com>

        Backport from mainline:
        2006-04-19  Carlos O'Donell  <carlos@codesourcery.com>
        PR c/26774
        * gcc.dg/struct-parse-1.c: New test case.


Added:
    branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/struct-parse-1.c
Modified:
    branches/gcc-4_1-branch/gcc/ChangeLog
    branches/gcc-4_1-branch/gcc/stor-layout.c
    branches/gcc-4_1-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26774

[Bug c/26774] [4.0 Regression] Out of memory compiling 9-line Delta-reduced Linux kernel driver msp3400.c

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|3.4.6                       |3.4.6 4.1.1 4.2.0
            Summary|[4.0/4.1/4.2 Regression] Out|[4.0 Regression] Out of
                   |of memory compiling 9-line  |memory compiling 9-line
                   |Delta-reduced Linux kernel  |Delta-reduced Linux kernel
                   |driver msp3400.c            |driver msp3400.c
   Target Milestone|---                         |4.0.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26774

[Bug c/26774] [4.0 Regression] Out of memory compiling 9-line Delta-reduced Linux kernel driver msp3400.c

[gdr at gcc dot gnu dot org]

------- Comment #9 from gdr at gcc dot gnu dot org  2007-02-03 16:25 -------
Fixed in GCC-4.1.1


-- 

gdr at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|4.0.4                       |4.1.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26774