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Re: PATCH: PR rtl-optimization/47502: Never combine asm statement

From: "H.J. Lu" <hjl dot tools at gmail dot com>
To: Eric Botcazou <ebotcazou at adacore dot com>
Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Fri, 18 Mar 2011 13:56:45 -0700
Subject: Re: PATCH: PR rtl-optimization/47502: Never combine asm statement
References: <20110128021444.GA18059@intel.com> <AANLkTin2dKr8S2sOAVXvpdzfqoYXU=QTLV-Lkm0=DiiP@mail.gmail.com> <201103182051.40414.ebotcazou@adacore.com>

On Fri, Mar 18, 2011 at 12:51 PM, Eric Botcazou <ebotcazou@adacore.com> wrote:
>> Is this patch OK for trunk?
>
> This has always worked for the other ports AFAIK so I don't think we should
> disable it without evaluating the impact on them. ?If reload has so many
> problems with x32, maybe more fundamental changes should be made to the x86
> back-end to support it.
>

X32 port exposed many issues in GCC middle-end and RTL optimizations.
The other ports never generate such asm statements combine has to deal with.
Do you have any suggestions how to fix it in backend?

Thanks.

-- 
H.J.

Follow-Ups:
- Re: PATCH: PR rtl-optimization/47502: Never combine asm statement
  - From: Richard Henderson

References:
- Re: PATCH: PR rtl-optimization/47502: Never combine asm statement
  - From: H.J. Lu
- Re: PATCH: PR rtl-optimization/47502: Never combine asm statement
  - From: Eric Botcazou

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