[M3devel] EXT:RE: [M3commit] CVS Update: cm3

[Rodney M. Bates]

I can reproduce this symptom on a LINUXLIBC6 system and got a small example
constructed.  It does not happen on AMD64_LINUX, so is apparently word-size
dependent.

Jay's revert in CG.ScanTypes makes the problem go away here and elsewhere,
so should help Randy get past this one.  But it does reintroduce the same
symptom on different cases, involving packed fields with bit counts other
than 8, 16, 32, and 64.

Something seems very wrong, as ScanTypes is, as originally coded, looking
for a type whose alignment is <= the requested alignment, not >=.  At least
some of the requested alignment values are coming from a field commented as
"(* minimum alignment in bits *)".  But then there are places that ask for
64-bit alignment on all targets.  Impossible to satisfy.

I will keep my changes local until I get both groups of cases working on both
word sizes.

On 09/23/2013 06:03 PM, Coleburn, Randy wrote:
> *Things go fine until I get to m3core.  I get an internal code generator error. *See error below:
>
> --- processing package "m3-libs\m3core" ---
>
> --- purging derived files from NT386 ---
>
> --- cleaning NT386 ---
>
> ignoring ..\src\m3overrides
>
> --- building in NT386 ---
>
> ignoring ..\src\m3overrides
>
> new source -> compiling RTHooks.i3
>
> new source -> compiling RT0.i3
>
> new source -> compiling RuntimeError.i3
>
> new source -> compiling WordRep.i3
>
> new source -> compiling Word.i3
>
> new source -> compiling RTException.i3
>
> new source -> compiling RTHooks.m3
>
> new source -> compiling RT0.m3
>
> new source -> compiling Compiler.i3
>
> new source -> compiling RuntimeError.m3
>
> new source -> compiling Compiler.m3
>
> new source -> compiling RTAllocator.i3
>
> new source -> compiling RTType.i3
>
> new source -> compiling RTHeapRep.i3
>
> new source -> compiling FloatMode.i3
>
> new source -> compiling RTThread.i3
>
> new source -> compiling Scheduler.i3
>
> new source -> compiling RTOS.i3
>
> new source -> compiling RTMisc.i3
>
> new source -> compiling Cstdlib.i3
>
> new source -> compiling Cstddef.i3
>
> new source -> compiling LongRep.i3
>
> new source -> compiling Long.i3
>
> new source -> compiling BasicCtypes.i3
>
> new source -> compiling Ctypes.i3
>
> new source -> compiling RTAllocCnts.i3
>
> new source -> compiling RTAllocator.m3
>
> "..\src\runtime\common\RTAllocator.m3", line 95: ** INTERNAL CG ERROR *** unable to find integer type? type=Word.32  s/o/a=8/416/64
>
> "..\src\runtime\common\RTAllocator.m3", line 209: ** INTERNAL CG ERROR *** unable to find integer type?  type=Word.32  s/o/a=8/416/64
>
> "..\src\runtime\common\RTAllocator.m3", line 231: ** INTERNAL CG ERROR *** unable to find integer type?  type=Word.32  s/o/a=8/416/64
>
> "..\src\runtime\common\RTAllocator.m3", line 248: ** INTERNAL CG ERROR *** unable to find integer type?  type=Word.32  s/o/a=8/416/64
>
> "..\src\runtime\common\RTAllocator.m3", line 270: ** INTERNAL CG ERROR *** unable to find integer type?  type=Word.32  s/o/a=8/416/64
>
> "..\src\runtime\common\RTAllocator.m3", line 303: ** INTERNAL CG ERROR *** unable to find integer type?  type=Word.32  s/o/a=8/416/64
>
> "..\src\runtime\common\RTAllocator.m3", line 324: ** INTERNAL CG ERROR *** unable to find integer type?  type=Word.32  s/o/a=8/416/64
>
> 7 errors encountered
>