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Re: GCC optimization bug?

From: Andrew Haley <aph at redhat dot com>
To: Mason <slash dot tmp at free dot fr>, GCC help <gcc-help at gcc dot gnu dot org>
Cc: anubhav <anubhav at cse dot iitb dot ac dot in>
Date: Tue, 17 Jan 2017 10:59:24 +0000
Subject: Re: GCC optimization bug?
Authentication-results: sourceware.org; auth=none
References: <8bd91f0702cba1bb8ea712e572a52c3b@cse.iitb.ac.in> <3b1dbcdc-ec2f-e235-2780-648f5d04f997@free.fr>

On 17/01/17 10:49, Mason wrote:
> What is the exact semantic of -fno-strict-overflow -fno-wrapv ?

I wish I knew.  The quoted passage seems to say that with the -fwrapv
option integer overflow is fully defined, but with the
-fno-strict-overflow option it is not undefined.  And they are
different.  Go figure...

Andrew.

References:
- GCC optimization bug?
  - From: anubhav
- Re: GCC optimization bug?
  - From: Mason

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