Microsoft C 6.0 BAD code generation

[Gary Jackoway]

> One of my co workers was trying to start using Microsoft C 6.0 but found out
> that it's just like Microsfot C 5.1.  You have to disable most of the
> optimizations so it will generate correct code.  Here's his very simple sample
> code which doesn't have anything to do with loops but is broken when 
> you specify loop optimizations.
 
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Well, now that you mention it,...

I have a fairly simple example program that compiles with no warnings
on warning level 3 and gets the wrong answer when /Og is specified.
And, of course, /Og is included in /Ox.

I have submitted it to Microsoft, and so far they said it "seems" to
be a bug.  What suprised me was their cavalier attitude about silently
generating bad code.  Sure hope nobody out there is using MSC 6.0 to
design or run nuclear reactors!

Gary Jackoway