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[Bug rtl-optimization/28019] register allocator does not reschedule for x86 imull

From: "steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
To: gcc-bugs at gcc dot gnu dot org
Date: 13 Jun 2006 20:26:47 -0000
Subject: [Bug rtl-optimization/28019] register allocator does not reschedule for x86 imull
References: <bug-28019-6963@http.gcc.gnu.org/bugzilla/>
Reply-to: gcc-bugzilla at gcc dot gnu dot org


------- Comment #3 from steven at gcc dot gnu dot org  2006-06-13 20:26 -------
The solution is "don't do -fschedule-insns on x86".

Unless you first add heuristics in the scheduler to keep a better eye on
register pressure, and fix the many known bugs in scheduling for x86.


-- 

steven at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WONTFIX


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28019

References:
- [Bug rtl-optimization/28019] New: ICE: x86 scheduler upsets local reg alloc
  - From: stuart at apple dot com

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