[Bug c/53293] New: Internal Compiler Error

[Bug c/53293] New: Internal Compiler Error

[vikram2rhyme at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53293

             Bug #: 53293
           Summary: Internal Compiler Error
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: vikram2rhyme@gmail.com


-O2 : Internal Compiler Error (Segmentation fault) : gcc compiler fails on
--param min-crossjump-insns=0
Command:  gcc biariencode.i -c -O2 --param min-crossjump-insns=0

[Bug c/53293] Internal Compiler Error

[vikram2rhyme at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53293

--- Comment #1 from vikram <vikram2rhyme at gmail dot com> 2012-05-09 09:46:11 UTC ---
Created attachment 27353
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27353
Preprocessed file

[Bug c/53293] Internal Compiler Error

[vikram2rhyme at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53293

--- Comment #2 from vikram <vikram2rhyme at gmail dot com> 2012-05-09 09:48:00 UTC ---
ICE:SEGFAULT

[Bug c/53293] Internal Compiler Error

[glisse at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53293

--- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> 2012-05-09 12:06:37 UTC ---
typedef struct {
  unsigned Ebits_to_go ;
  int C 
} * EncodingEnvironmentPtr ;
arienco_done_encoding ( EncodingEnvironmentPtr eep ) { 
  if ( ( eep -> Ebits_to_go ) ) { 
    while ( eep -> C ) { 
      while ( 7 ) { 
      } 
    } 
  } 
}

[Bug middle-end/53293] Internal Compiler Error

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53293

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mpolacek at gcc dot gnu.org
          Component|c                           |middle-end

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Fixed in 4.8+ (cc1: error: minimum value of parameter ‘min-crossjump-insns’ is
1).
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Subject: [Bug debug/61116] redundant DWARF with VLAs inside structs
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http://gcc.gnu.org/bugzilla/show_bug.cgi?ida116

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|redundant DWARF with VLAs   |redundant DWARF with VLAs
                   |                            |inside structs

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think the main reason is that Vla types are not merged. Think of code like:
Int a[n];
N++
Int b[b];

[Bug middle-end/53293] Internal Compiler Error

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53293

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

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

--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
So fixed.