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Re: 100x perfomance regression between gcc 3.4.5 and gcc 4.X

From: Mike Stump <mrs at apple dot com>
To: Paolo Bonzini <paolo dot bonzini at lu dot unisi dot ch>
Cc: tbp <tbptbp at gmail dot com>, Steven Bosscher <stevenb dot gcc at gmail dot com>, "Ernest L. Williams Jr." <ernesto at ornl dot gov>, Nickolay Kolchin <nbkolchin at gmail dot com>, Richard Guenther <richard dot guenther at gmail dot com>, gcc at gcc dot gnu dot org
Date: Mon, 13 Mar 2006 12:08:37 -0800
Subject: Re: 100x perfomance regression between gcc 3.4.5 and gcc 4.X
References: <4fc48eb10603121510kde300d0mfe9b66f2661e42a1@mail.gmail.com> <200603130018.k2D0IrbD021968@earth.phy.uc.edu> <4fc48eb10603121851j1914e8ddu9eb7cf8b4ccf3540@mail.gmail.com> <44152A64.30308@lu.unisi.ch>

On Mar 13, 2006, at 12:16 AM, Paolo Bonzini wrote:

PR/21195 is about inlining the SSE builtins. These are special because, for example, you probably would prefer GDB to not step into them, but just execute them.

:-) We have an APPLE LOCAL patch to remove the debug information associated with them so that the debugger never steps `into' them. :- ( attr (__nodebug)

References:
- Re: 100x perfomance regression between gcc 3.4.5 and gcc 4.X
  - From: tbp
- Re: 100x perfomance regression between gcc 3.4.5 and gcc 4.X
  - From: Andrew Pinski
- Re: 100x perfomance regression between gcc 3.4.5 and gcc 4.X
  - From: tbp
- Re: 100x perfomance regression between gcc 3.4.5 and gcc 4.X
  - From: Paolo Bonzini

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