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Re: [patch 5/8] Immediate Values - x86 Optimization

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From: H. Peter Anvin <hpa@...>
To: Mathieu Desnoyers <mathieu.desnoyers@...>
Cc: <akpm@...>, <linux-kernel@...>, Andi Kleen <ak@...>, Chuck Ebbert <cebbert@...>, Christoph Hellwig <hch@...>, Jeremy Fitzhardinge <jeremy@...>
Subject: Re: [patch 5/8] Immediate Values - x86 Optimization
Date: Tuesday, November 13, 2007 - 3:07 pm

Mathieu Desnoyers wrote:
- Use "=g" constraint for char immediate value inline assembly.

"=g" is the same as "=rmi" which is inherently bogus.  In your actual 
code you use "=r", the correct constraint is "=q".

	-hpa
-
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Messages in current thread:
[patch 5/8] Immediate Values - x86 Optimization, Mathieu Desnoyers, (Tue Nov 13, 2:58 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization, Rusty Russell, (Wed Nov 14, 11:08 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization, Mathieu Desnoyers, (Thu Nov 15, 12:06 am)
Re: [patch 5/8] Immediate Values - x86 Optimization, Rusty Russell, (Thu Nov 15, 12:45 am)
Re: [patch 5/8] Immediate Values - x86 Optimization, Mathieu Desnoyers, (Thu Nov 15, 1:37 am)
Re: [patch 5/8] Immediate Values - x86 Optimization, Rusty Russell, (Thu Nov 15, 7:06 am)
Re: [patch 5/8] Immediate Values - x86 Optimization (simplif..., Mathieu Desnoyers, (Fri Nov 16, 10:03 am)
Re: [patch 5/8] Immediate Values - x86 Optimization (simplif..., Rusty Russell, (Sun Nov 18, 7:11 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization (simplif..., Mathieu Desnoyers, (Mon Nov 19, 3:15 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization (simplif..., Mathieu Desnoyers, (Mon Nov 19, 10:28 am)
Re: [patch 5/8] Immediate Values - x86 Optimization (simplif..., Rusty Russell, (Mon Nov 19, 7:06 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization (simplif..., Mathieu Desnoyers, (Tue Nov 20, 1:02 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization, H. Peter Anvin, (Tue Nov 13, 3:07 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization, Mathieu Desnoyers, (Tue Nov 13, 3:24 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization, H. Peter Anvin, (Tue Nov 13, 3:36 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization, Mathieu Desnoyers, (Tue Nov 13, 3:45 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization, H. Peter Anvin, (Tue Nov 13, 3:56 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization (update), Mathieu Desnoyers, (Tue Nov 13, 4:40 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization (update), H. Peter Anvin, (Tue Nov 13, 5:26 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization (update), Mathieu Desnoyers, (Tue Nov 13, 6:02 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization (update), H. Peter Anvin, (Tue Nov 13, 6:35 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization (update), Mathieu Desnoyers, (Tue Nov 13, 8:34 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization (update), H. Peter Anvin, (Tue Nov 13, 9:02 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization (update 2), Mathieu Desnoyers, (Tue Nov 13, 9:44 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization (update 2), H. Peter Anvin, (Tue Nov 13, 10:58 pm)
[PATCH] Immediate Values x86 Optimization Declare Discarded ..., Mathieu Desnoyers, (Wed Nov 14, 2:52 pm)
Re: [PATCH] Immediate Values x86 Optimization Declare Discar..., H. Peter Anvin, (Wed Nov 14, 3:00 pm)
[PATCH] Add __discard section to x86, Mathieu Desnoyers, (Wed Nov 14, 3:16 pm)
Re: [PATCH] Add __discard section to x86, H. Peter Anvin, (Wed Nov 14, 3:33 pm)
Re: [patch 5/8] Immediate Values - x86 Optimization (update 2), Mathieu Desnoyers, (Wed Nov 14, 10:16 am)