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Re: [PATCH, x86_64]: Provide longlong.h definitions for 128bit operations

From: Eric Christopher <echristo at apple dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Cc: Uros Bizjak <ubizjak at gmail dot com>, Paolo Bonzini <bonzini at gnu dot org>, Ian Lance Taylor <iant at google dot com>, Chris Lattner <clattner at apple dot com>
Date: Thu, 17 May 2007 10:05:27 -0700
Subject: Re: [PATCH, x86_64]: Provide longlong.h definitions for 128bit operations
References: <464B6834.1050600@gmail.com> <1A602E70-5AEE-4B36-A8A3-7BC18F16E708@apple.com> <5787cf470705162257q218a370dwaa99b4dd918a0edf@mail.gmail.com> <1E575F91-1967-4AB6-9D29-A8360BC6C8A2@apple.com> <464C02B4.2010107@gnu.org> <5787cf470705170225v72e50971r9296da4a06093ac7@mail.gmail.com> <C2975B1F-9A53-4B5D-A9A7-6437CAD20641@apple.com>

Inline asm really is bad. It's much better to fix the compiler so that users don't have to rely on it to get performance.

Agreed, Ian's patches that take advantage of lower-subreg for x86 help this quite a bit. He's waiting AFAIK on the df branch to finish them up, but from what I recall they helped this particular case.

-eric

Follow-Ups:
- Re: [PATCH, x86_64]: Provide longlong.h definitions for 128bit operations
  - From: Uros Bizjak
- Re: [PATCH, x86_64]: Provide longlong.h definitions for 128bit operations
  - From: Uros Bizjak

References:
- [PATCH, x86_64]: Provide longlong.h definitions for 128bit operations
  - From: Uros Bizjak
- Re: [PATCH, x86_64]: Provide longlong.h definitions for 128bit operations
  - From: Chris Lattner
- Re: [PATCH, x86_64]: Provide longlong.h definitions for 128bit operations
  - From: Uros Bizjak
- Re: [PATCH, x86_64]: Provide longlong.h definitions for 128bit operations
  - From: Chris Lattner
- Re: [PATCH, x86_64]: Provide longlong.h definitions for 128bit operations
  - From: Paolo Bonzini
- Re: [PATCH, x86_64]: Provide longlong.h definitions for 128bit operations
  - From: Uros Bizjak
- Re: [PATCH, x86_64]: Provide longlong.h definitions for 128bit operations
  - From: Chris Lattner

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