Re: [Gm2] internal compiler error:

[Gaius Mulley]

John Dubery <address@hidden> writes:

> Gaius,
> I get the following error: 
>
>     In function ‘_M2_ScreenTest_init’:
>     cc1gm2: internal compiler error: in convert_loc, at
>     gm2/gm2-lang.c:822
>     Please submit a full bug report,
>     with preprocessed source if appropriate.
>     See <http://gcc.gnu.org/bugs.html> for instructions.
>     
> when compiling:
>
>     MODULE ScreenTest;
>     FROM SYSTEM IMPORT ADDRESS;
>     FROM RPiMailbox IMPORT
>     WriteToMbox, ReadFromMbox;
>     FROM RPiGPIOControl IMPORT
>     FlashError, FlashNumber;
>     
>     TYPE FrameBufferType=
>     RECORD
>     PhysicalWidth: INTEGER;
>     PhysicalHeight: INTEGER;
>     VirtualWidth: INTEGER;
>     VirtualHeight: INTEGER;
>     GPUPitch: INTEGER; 
>     BitDepth: INTEGER; 
>     X: INTEGER;
>     Y: INTEGER;
>     GPUPointer: ARRAY [1..4096] OF CARDINAL;
>     GPUSize: INTEGER;
>     END;
>     FrameBufferPtrType= POINTER TO FrameBufferType;
>     
>     VAR 
>     FrameBuffer: FrameBufferType;
>     FrameBufferPtr: FrameBufferPtrType;
>     Result: CARDINAL;
>     ErrorNumber: INTEGER;
>     X, Y, i: CARDINAL;
>     
>     BEGIN
>     FrameBufferPtr:= ADDRESS (FrameBuffer);
>     WITH FrameBufferPtr^ DO
>     PhysicalWidth:=1024;
>     PhysicalHeight:=768;
>     VirtualWidth:=1024;
>     VirtualHeight:=768;
>     GPUPitch:=0;
>     BitDepth:=16;
>     X:=0;
>     Y:=0;
>     GPUPointer:=ADDRESS(0);
>     GPUSize:=0;
>     END;
>     
>     WriteToMbox(1, CARDINAL(FrameBufferPtr)+40000000H, ErrorNumber);
>     IF ErrorNumber#0 THEN FlashError; FlashNumber(ErrorNumber) END;
>     ReadFromMbox(1, Result, ErrorNumber);
>     IF ErrorNumber#0 THEN FlashError; FlashNumber(ErrorNumber) END;
>     
>     (* Display colours systematically *)
>     i:= 1;
>     FOR X:= 1 TO 1024 DO
>     FOR Y:= 1 TO 768 DO
>     INC(i);
>     FrameBufferPtr^.GPUPointer[i]:= i;
>     END;
>     END; 
>     
>     END ScreenTest.
>     
> The command was:
> gm2 -Wextra -save-temps ScreenTest.mod
> I can't find any relevant files in /tmp.
> I get the same error on AMD64 and ARM.
> On AMD64 I'm running Ubuntu 16.04, gm2 is 5.2.0, gcc is 5.4.0 20160609
> (Ubuntu 5.4.0-6ubuntu1~16.04.4).
> On the Raspberry Pi I'm running Raspbian. 'uname -a' gives:
> Linux dubery2-rpi 4.1.19+ #858 Tue Mar 15 15:52:03 GMT 2016 armv6l
> GNU/Linux
> gm2 is 4.7.4 , gcc is 4.6.3 (Debian 4.6.3-14+rpi1).
> Would you like the sub-modules? Any advice to work around this?
>
> Thanks,
> John

Hello John,

many thanks for the report -

> Would you like the sub-modules? Any advice to work around this?

yes please - if possible.  So I can run the compiler and inspect it as
it fails under gdb.  I'll keep the code in my non-free code test tree
(and only look at it when debugging gm2),

regards,
Gaius