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Re: [Fwd: [Bug bootstrap/27644] [4.1 regression] Bootstrap failure on native ARM targets]

From: Andrew Pinski <pinskia at physics dot uc dot edu>
To: "H. J. Lu" <hjl at lucon dot org>
Cc: Mark Mitchell <mark at codesourcery dot com>, David Edelsohn <dje at watson dot ibm dot com>, gcc-patches at gcc dot gnu dot org
Date: Wed, 17 May 2006 22:46:40 -0700
Subject: Re: [Fwd: [Bug bootstrap/27644] [4.1 regression] Bootstrap failure on native ARM targets]
References: <446B7341.3010400@codesourcery.com> <200605172101.k4HL13728910@makai.watson.ibm.com> <446B9150.1040704@codesourcery.com> <20060517225840.GA28930@lucon.org> <63212DA7-209F-4020-B707-ED83705F97C8@physics.uc.edu> <20060518025709.GA30447@lucon.org> <24007519-5341-4C42-9A43-3353A866979B@physics.uc.edu> <20060518054233.GA31183@lucon.org>

On May 17, 2006, at 10:42 PM, H. J. Lu wrote:

x86-64 has

#define ASM_SPEC "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} % {Yd,*} \ %{Wa,*:%*} %{m32:--32} %{m64:--64}"

That means -m64 always overrides -m32 even if it comes before -m32.


But that does not explain why x86_64 has to do it this way and not
the way powerpc64 does it.

-- Pinski

Follow-Ups:
- Re: [Fwd: [Bug bootstrap/27644] [4.1 regression] Bootstrap failure on native ARM targets]
  - From: Mark Mitchell
- Re: [Fwd: [Bug bootstrap/27644] [4.1 regression] Bootstrap failure on native ARM targets]
  - From: H. J. Lu

References:
- Re: [Fwd: [Bug bootstrap/27644] [4.1 regression] Bootstrap failure on native ARM targets]
  - From: Mark Mitchell
- Re: [Fwd: [Bug bootstrap/27644] [4.1 regression] Bootstrap failure on native ARM targets]
  - From: David Edelsohn
- Re: [Fwd: [Bug bootstrap/27644] [4.1 regression] Bootstrap failure on native ARM targets]
  - From: Mark Mitchell
- Re: [Fwd: [Bug bootstrap/27644] [4.1 regression] Bootstrap failure on native ARM targets]
  - From: H. J. Lu
- Re: [Fwd: [Bug bootstrap/27644] [4.1 regression] Bootstrap failure on native ARM targets]
  - From: Andrew Pinski
- Re: [Fwd: [Bug bootstrap/27644] [4.1 regression] Bootstrap failure on native ARM targets]
  - From: H. J. Lu
- Re: [Fwd: [Bug bootstrap/27644] [4.1 regression] Bootstrap failure on native ARM targets]
  - From: Andrew Pinski
- Re: [Fwd: [Bug bootstrap/27644] [4.1 regression] Bootstrap failure on native ARM targets]
  - From: H. J. Lu

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