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Re: [PATCH 1/2] PowerPC: Change `z' constraint to mean XER[CA] instead of XER

From: Segher Boessenkool <segher at kernel dot crashing dot org>
To: David Edelsohn <dje dot gcc at gmail dot com>
Cc: gcc-patches at gcc dot gnu dot org
Date: Fri, 28 May 2010 00:29:03 +0200
Subject: Re: [PATCH 1/2] PowerPC: Change `z' constraint to mean XER[CA] instead of XER
References: <f568c595f8bf46dc8997bc281485f676c960865c.1274898160.git.segher@kernel.crashing.org> <AANLkTikD5GEVMBGz2C7ywgPGaZxyJguD56XLaD_n_ac3@mail.gmail.com>

The comment in REG_ALLOC_ORDER mentions that XER (now CA) is fixed.  I
assume that a later patch updates FIXED_REGISTERS,
CALL_USED_REGISTERS, CALL_REALLY_USED_REGISTERS, etc. and updates the
comment?

Since that later patch doesn't exist yet: yes you assume right!

Thanks for the hint,

Segher

References:
- [PATCH 1/2] PowerPC: Change `z' constraint to mean XER[CA] instead of XER
  - From: Segher Boessenkool
- Re: [PATCH 1/2] PowerPC: Change `z' constraint to mean XER[CA] instead of XER
  - From: David Edelsohn

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