bugs in double dimension arrays optimization

bugs in double dimension arrays optimization

[Vincent Diepeveen]

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Hello i figured out where my program crashes if i
use the latest snapshot:

#define white 0
#define black 1

typedef {
  ..
  int stuklijst[2][16];
  ..
} Game;

Game *partij;
int PieceList[2][32];
int pieceid[64];

// *partij has its allocated memory in shared memory.

  ..
  for( i = white ; i <= black ; i++ ) {

    ..code..

    for( j = 0 ; j < 16 ; j++ ) {
      PieceList[i][j] = partij->stuklijst[i][j];  <== this line it crashes
      pieceid[PieceList[i][j]] = id2index[j];
    }
    ..
  }

If i shuffle the code inside the 'i' loop
then code also crashes.

As soon as i put a 'printf' inside the 'i', then
it doesn't crash there. 

Note that i is getting used over
and over again in all kind of loops.

Compilerflags: -g -O2
>From patha@softlab.ericsson.se Mon Aug 07 04:15:00 2000
From: Patrik Hagglund <patha@softlab.ericsson.se>
To: gcc-bugs@gcc.gnu.org
Subject: va_list declared twice on SunOS 5.7
Date: Mon, 07 Aug 2000 04:15:00 -0000
Message-id: <20000807111534.80039583E@hunny.softlab.se>
X-SW-Source: 2000-08/msg00143.html
Content-length: 387

The following code declares va_list twice on SunOS 5.7:

  #define _XOPEN_SOURCE 500
  #include <stdarg.h>
  #include <stdio.h>


  /usr/include/stdio.h:118: warning: redefinition of `va_list'
  /usr/local/lib/gcc-lib/sparc-sun-solaris2.7/2.96/include/stdarg.h:90: warning: `va_list' previously declared here

I get the same result for gcc-2.95.2 and egcs-20000626.

--
Patrik Hägglund
>From diep@xs4all.nl Mon Aug 07 05:31:00 2000
From: Vincent Diepeveen <diep@xs4all.nl>
To: gcc-bugs@gcc.gnu.org, gcc@gcc.gnu.org
Subject: correction bugreport loop bugs
Date: Mon, 07 Aug 2000 05:31:00 -0000
Message-id: <3.0.32.20000807143304.009d7100@pop.xs4all.nl>
X-SW-Source: 2000-08/msg00144.html
Content-length: 192

my bugreport was based upon snapshot is from 31/7/2000

One correction: Compilerflags used were NOT ONLY -g -O2
but the full compileroptions are:
   -g -O2 -mpentiumpro -march=pentiumpro