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Re: PATCH - Minor changes to support 64bit int/32bit ABI for PPC
- From: Geoff Keating <geoffk at geoffk dot org>
- To: David Edelsohn <dje at watson dot ibm dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: 09 Nov 2003 13:57:01 -0800
- Subject: Re: PATCH - Minor changes to support 64bit int/32bit ABI for PPC
- References: <200311090305.hA935DT31950@makai.watson.ibm.com>
David Edelsohn <email@example.com> writes:
> (rs6000_emit_set_long_const): Fix for when HOST_WIDE_INT is 32bit.
> If Apple wants to target 64-bit computation but retain 32-bit H_W_I,
> please keep this change APPLE LOCAL.
I don't think it's unreasonable to make changes of this nature to GCC.
GCC becomes significantly slower when you change H_W_I to be 64 bits.
(I'm not sure about the particular change. It looks wrong to me, I
think high bits may be lost. Plus, I don't see why a #if is needed
- Geoffrey Keating <firstname.lastname@example.org>