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Re: [PATCH] Add __GCC_HAVE_SYNC_COMPARE_AND_SWAP_*

From: Paolo Carlini <pcarlini at suse dot de>
To: Uros Bizjak <ubizjak at gmail dot com>
Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, Paolo Bonzini <paolo dot bonzini at lu dot unisi dot ch>
Date: Fri, 18 May 2007 11:11:37 +0200
Subject: Re: [PATCH] Add __GCC_HAVE_SYNC_COMPARE_AND_SWAP_*
References: <5787cf470705172233h1ba89359j5f607dab266b3b84@mail.gmail.com>

Uros Bizjak wrote:

Could __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 for cmpxchg16b also be added
to these checks? For testing, you need -mcx16 compile flag on x86_64.

Isn't completely trivial, because HAVE_sync_compare_and_swapti is not defined on i386... Paolo, or Uros, can you suggest a quick solution for this extension?

Thanks,
Paolo.

Follow-Ups:
- Re: [PATCH] Add __GCC_HAVE_SYNC_COMPARE_AND_SWAP_*
  - From: Uros Bizjak

References:
- Re: [PATCH] Add __GCC_HAVE_SYNC_COMPARE_AND_SWAP_*
  - From: Uros Bizjak

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