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Re: GCC 3.3 compile speed regression - THE GRAPH

From: Aaron Lehmann <aaronl at vitelus dot com>
To: Diego Novillo <dnovillo at redhat dot com>
Cc: Fergus Henderson <fjh at cs dot mu dot oz dot au>, Ziemowit Laski <zlaski at apple dot com>,gcc at gcc dot gnu dot org
Date: Sun, 9 Feb 2003 12:27:50 -0800
Subject: Re: GCC 3.3 compile speed regression - THE GRAPH
References: <0045B60F-3ADE-11D7-9ED6-000393673036@apple.com> <20030209192459.GB11679@earth.cs.mu.oz.au> <20030209201715.GC14110@tornado.toronto.redhat.com>

On Sun, Feb 09, 2003 at 03:17:15PM -0500, Diego Novillo wrote:
> What optimizations were used by 'lcc' and 'tcc'?  i.e., is GCC 7
> times or 16 times slower than 'tcc'?  What about the generated
> code?  I want to make sure that we are comparing apples to
> apples.

tcc is like "gcc -O-1". Its code generation is freakily primitive.

References:
- GCC 3.3 compile speed regression - THE GRAPH
  - From: Ziemowit Laski
- Re: GCC 3.3 compile speed regression - THE GRAPH
  - From: Fergus Henderson
- Re: GCC 3.3 compile speed regression - THE GRAPH
  - From: Diego Novillo

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