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Re: [avr-gcc-list] -O3 problem

From: Denis Chertykov
Subject: Re: [avr-gcc-list] -O3 problem
Date: 30 May 2001 23:00:55 +0400

Paul Casteels <address@hidden> writes:

> Hi,
> In my previous mail I mentioned a compiler (avrgcc20010211.exe) crash
> compiling a simple program with the strlen function with -O3 optimization.
> -O2 optimization compiles but produces erroneous results.
> Only -O1 seems reliable. I also had a code fragment with the abs()
> function that produced wrong code with -O2. Is it unsafe to use greater
> optimization then -O1 ? Do I need to get a newer version ?


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