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From: larryc@porter.jpl.nasa.gov (Larry Carroll)
Newsgroups: comp.sys.sgi,comp.graphics
Subject: Re: c++ vs ada results
Message-ID: <1991Jun14.015025.18682@jpl-devvax.jpl.nasa.gov>
Date: 14 Jun 91 01:50:25 GMT
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In article <deleted> paul@u02.svl.cdc.com (Paul Kohlmiller) writes:
>Could you specify one or more machines that have an available Ada compiler
>that generates code that is as efficient as a C compiler for the same machine?

Ask instead what vendor supplies this.  There are probably several; one of the 
better ones come from Tartan, who also supply compilers for other languages. 
The founders of Tartan included several of the people from Carnegie-Mellon 
who pioneered optimization technology in the late 70's & early 80's, so that 
shouldn't be surprising.

Further, Ada compilers can produce tighter & faster code than many older
languages because it contains constructs that give the compiler information
it needs to do optimization.  This includes ranges, as in
   type tiny_int is integer range 0..1;
whose data can be fit into one bit (if size were important) or byte or word 
for some machines (where speed might depend on putting single-bit data on 
a byte or word boundary).