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Date: Tue, 27 Apr 1999 08:36:26 +0100 (BST)
Sender: gary AT penang DOT cygnus DOT co DOT uk
From: Gary Thomas <gdt AT linuxppc DOT org>
To: Brendan Simon <brendan AT dgs DOT monash DOT edu DOT au>
Subject: RE: cygwin or egcs bug ?
Cc: CygWin32 <cygwin AT sourceware DOT cygnus DOT com>,
        egcs mailing list <egcs AT cygnus DOT com>

This problem is an EGCS-1.1.2 one, it also occurs on Linux/x86.
(Works fine on Linux/PPC, BTW)

On 27-Apr-99 Brendan Simon wrote:
> The following code compiles fine with gcc-2.7.2.3 (using linux) but
> barfs with an internal compiler error when using egcs-1.1.2 (using
> Mingw32 or Cygwin32).  I haven't tried it with linux egcs yet but I will
> try that when I get home tonight.
> 
> The error message is
> "/home/noer/src/b20/comp-tools/devo/gcc/expr.c:2468: Internal compiler
> error in function emit_move_insn_1"
> 
> Is this a bug or have I got some kind of weird code that should be
> changed to be more portable ?
> Any ideas or patches ??
> 
> Thanks,
> Brendan Simon.
> 
> 
> struct GEN_REG
> {
>         volatile unsigned long  status[4];
>         volatile unsigned long  control[4];
> };
> 
> struct DEV
> {
>         volatile GEN_REG                genReg;
> };
> 
>#define         DevPtr  ( (volatile DEV * const) 0x1000000 )
> 
> int main()
> {
>         // This works OK.
>         DevPtr->genReg.status[0] = 0x00000000;
>         DevPtr->genReg.status[1] = 0x00000000;
>         DevPtr->genReg.status[2] = 0x00000000;
>         DevPtr->genReg.status[3] = 0x00000000;
> 
>         // This causes compiler to barf !!!
>         for( int i = 0; i < 4; i++ )
>         {
>                 DevPtr->genReg.status[i] = 0x00000000;
>         }
> 
>         return 0;
> }

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