Re: Weird behaviour with intent

In article <1hrer10.1rpjzoetyakxkN%nospam@xxxxxxxxxxxxx>,
Richard E Maine <nospam@xxxxxxxxxxxxx> wrote:

This is not an error that
compilers are required to catch. Nor is it an error that I'd expect most
compilers to be able to catch.

This is true, however, we have an option to our compiler which says
"don't assume that arguments don't alias." It has several friends, and
when a customer sees a wrong answer, the first thing we do (or the
customer does, if they've read the docs) is compile with all of these
options, which will quickly lead them to the type of bug.

We added this option after we noticed that the Polyhedron benchmarks
contained one example of illegal aliasing. (It's fixed now.)

-- greg
(employed by, not speaking for, QLogic/PathScale)
.

Relevant Pages

  • Re: An Ada Advice Inquiry
    ... Don't blame the language if you are force to ... about how languages and compilers get chosen, ... Complain about Borland, not about C+ ... convince customer to scrap Borland, even less to switch to Ada. ...
    (comp.lang.ada)
  • Re: why doesnt this compile ?
    ... > compilers I tried. ... maybe I'm not entirely out of grump mode yet.) ... Richard Maine ...
    (comp.lang.fortran)
  • Re: Fortran Error Reporting Requirements
    ... The top 3 features the typical customer desires are: faster execution, ... If there was money in it, those compilers that produce fast ...
    (comp.lang.fortran)
  • Re: D2005 and D7
    ... >> existing code, old compilers are needed. ... been delivering code and EXEs ... long time, they sometimes needs maintenance. ... customer may want someone else to do it. ...
    (borland.public.delphi.non-technical)
  • Re: To Richard Heathfield: enoughs enough
    ... I have given Richard Heathfield the benefit of the doubt for more than ... > It is a fallacy to cite as an authority someone who isn't an authority - for ... I did not say that Steven Skiena, the author of The Algorithm Design ... and Optimization are the norm, or that all compilers use yacc, bottom ...
    (comp.programming)