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Re: lto and compile flag associations
- From: Diego Novillo <dnovillo at google dot com>
- To: Jack Howarth <howarth at bromo dot med dot uc dot edu>
- Cc: gcc at gcc dot gnu dot org
- Date: Mon, 17 May 2010 08:27:46 -0400
- Subject: Re: lto and compile flag associations
- References: <20100517031852.GA28916@bromo.med.uc.edu>
On 5/16/10 23:18 , Jack Howarth wrote:
> What is the current LTO design with regards to the
> retention of compiler flags during the actual link
> time optimization compilation steps. For example, if
Some options are embedded, but not all (see lto-opts.c). You will need
to pass the same flags to the compile and link commands. The options
that are saved are reapplied at link-time, but no merging is done (the
options taken from the first file in the link command are used).
Diego.