Crash your compiler (Was: Ada Readability, Book Reference)

Crash your compiler (Was: Ada Readability, Book Reference)

[Stephane Bortzmeyer]

In article <1993Jan5.115003.29978@sei.cmu.edu>,
progers@ajpo.sei.cmu.edu (Pat Rogers) writes:
> In article <1993Jan4.174424.5699@seas.gwu.edu> mfeldman@seas.gwu.edu
(Michael Feldman) writes:
...
> >This is interesting. I take it, then, that 1.0/3.0 will be flagged by
> >the compiler, because - unless a rational representation is being
> >used, which is always possible, I suppose - there aren't enough bits
> >in a megabyte to evaluate it exactly. Do compilers use rationals
> >for this?  I'll be back later, after a test or two of this!
...
> About seven years ago I saw this program (I think by John Squires) on
> info-ada (this is a reconstruction from memory). See how long it takes 
> your compiler to give up on it -- use a batch queue if you can, especially 
> on a virtual memory machine.  If it does eventually compile, you can just 
> add lines until it won't...

Here are some results:

1) Sony/Risc under News/OS (sort of Unix BSD) with the Alsys/Systeam compiler:

% time ada.c ../killer.ada
Compiling:  /users/labinf/bortz/ada/essais/killer.ada
line 0, col 1, restriction:
         Overflow of digit pool in constant table
compiler error at end of compilation unit:
         Compilation in SEMANTIC aborted
PROCEDURE  KILLER
  **** Number of Errors              :     2
29.7u 0.5s 0:39.54 76.6% 337+196k 72+9io 354pf+0w

(Thirty CPU seconds before giving up.)

2) DECstation under Ultrix (sort of Unix BSD) with the DEC compiler:

% time ada.c ../killer.ada

(Twenty minutes of CPU time later, the experimentator went to bed.)

Does anyone have such a collection of "compiler killers"?

Stephane Bortzmeyer           Conservatoire National des Arts et Metiers
	
bortzmeyer@cnam.cnam.fr       Laboratoire d'Informatique
                              292, rue Saint-Martin			
tel: +33 (1) 40 27 27 31      75141 Paris Cedex 03
fax: +33 (1) 40 27 27 72      France	

"C'est la nuit qu'il est beau de croire a la lumiere." E. Rostand

					
	

Re: Crash your compiler (Was: Ada Readability, Book Reference)

[Bill Yow]

In article <199301051815.AA06597@cnam.cnam.fr>, bortzmeyer@cnam.cnam.fr (Stepha
ne Bortzmeyer) writes:
|> In article <1993Jan5.115003.29978@sei.cmu.edu>,
|> progers@ajpo.sei.cmu.edu (Pat Rogers) writes:
|> > In article <1993Jan4.174424.5699@seas.gwu.edu> mfeldman@seas.gwu.edu
|> (Michael Feldman) writes:

Intro stuff deleted.

|> 
|> Here are some results:
|> 
|> 1) Sony/Risc under News/OS (sort of Unix BSD) with the Alsys/Systeam compile
r:
|> 
|> % time ada.c ../killer.ada
|> Compiling:  /users/labinf/bortz/ada/essais/killer.ada
|> line 0, col 1, restriction:
|>          Overflow of digit pool in constant table
|> compiler error at end of compilation unit:
|>          Compilation in SEMANTIC aborted
|> PROCEDURE  KILLER
|>   **** Number of Errors              :     2
|> 29.7u 0.5s 0:39.54 76.6% 337+196k 72+9io 354pf+0w
|> 
|> (Thirty CPU seconds before giving up.)
|> 
|> 2) DECstation under Ultrix (sort of Unix BSD) with the DEC compiler:
|> 
|> % time ada.c ../killer.ada
|> 
|> (Twenty minutes of CPU time later, the experimentator went to bed.)
|> 
|> Does anyone have such a collection of "compiler killers"?


On a Sun 2 with Sun Ada (Verdix) something like the following messages were rec
eived after about 5 minutes.

Fail to allocated 1532 bytes of memory.

Already allocated 62534400 bytes of memory.

Compile failed.


|> 
|> Stephane Bortzmeyer           Conservatoire National des Arts et Metiers
	
|> bortzmeyer@cnam.cnam.fr       Laboratoire d'Informatique
|>                               292, rue Saint-Martin			
|> tel: +33 (1) 40 27 27 31      75141 Paris Cedex 03
|> fax: +33 (1) 40 27 27 72      France	
|> 
|> "C'est la nuit qu'il est beau de croire a la lumiere." E. Rostand
|> 
|> 					
|> 	

						Later,
						Bill Yow
						(713) 283-4051
						yow@sweetpea.jsc.nasa.gov
						byow@mcimail.com

My opinions are my own!