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Re: [RFC PATCH, x86_64] Use -mno-sse[,2] to fall back to x87 FP argument passing convention

From: Andrew Pinski <pinskia at gmail dot com>
To: Uros Bizjak <ubizjak at gmail dot com>
Cc: Ian Lance Taylor <iant at google dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Tue, 10 Oct 2006 23:36:04 -0700
Subject: Re: [RFC PATCH, x86_64] Use -mno-sse[,2] to fall back to x87 FP argument passing convention
References: <5787cf470610040249q3186839mc4b15f6de23e63f1@mail.gmail.com> <m3r6xfv2ig.fsf@localhost.localdomain> <5787cf470610102333n4f6d4d9bte6fb21f2aae22a26@mail.gmail.com>

On Wed, 2006-10-11 at 08:33 +0200, Uros Bizjak wrote:
> -mabi=x87: pass FP args through x87 regs (applies only for -mfpmath=387)

I don't think it should apply only when -mfpmath=387.
Because then you will get into a mess when someone wants the ABI but
also want to use the SSE registers for FP still. Weird people but it
could happen.

-- Pinski

References:
- [RFC PATCH, x86_64] Use -mno-sse[,2] to fall back to x87 FP argument passing convention
  - From: Uros Bizjak
- Re: [RFC PATCH, x86_64] Use -mno-sse[,2] to fall back to x87 FP argument passing convention
  - From: Ian Lance Taylor
- Re: [RFC PATCH, x86_64] Use -mno-sse[,2] to fall back to x87 FP argument passing convention
  - From: Uros Bizjak

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