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Re: Question about rs6000 zero_fp_constant predicate

From: Eric Botcazou <ebotcazou at libertysurf dot fr>
To: Revital1 Eres <ERES at il dot ibm dot com>
Cc: gcc at gcc dot gnu dot org
Date: Sun, 16 Sep 2007 10:24:22 +0200
Subject: Re: Question about rs6000 zero_fp_constant predicate
References: <OFC2321908.7FA46367-ONC2257358.002BAA6F-C2257358.002DBAB9@il.ibm.com>

> I want to create a rtx which will fit the description of the following
> operand. (taken from selv2sf4 instruction in the rs6000/paired.md machine
> description)
>
> (match_operand:SF 4 "zero_fp_constant" "F")
>
> I am not sure how to create such zero const_double rtx and I appreciate
> help regarding this.

CONST0_RTX (SFmode)

-- 
Eric Botcazou

References:
- Question about rs6000 zero_fp_constant predicate
  - From: Revital1 Eres

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