Re: Register pressure and inlining

"Armel" <armelasselin@hotmail.com>
Wed, 12 Nov 2008 16:42:22 +0100

          From comp.compilers

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| List of all articles for this month |

From: "Armel" <armelasselin@hotmail.com>
Newsgroups: comp.compilers
Date: Wed, 12 Nov 2008 16:42:22 +0100
Organization: les newsgroups par Orange
References: 08-11-036 08-11-045 08-11-047
Keywords: optimize, registers
Posted-Date: 12 Nov 2008 13:25:20 EST

"Alex L.K" <liangkun1983@gmail.com> a icrit dans le message de news:
> The spilling code in this example does not hurt performance.
> Is there any example that inlining acctually causes performance loss?


maybe not exactly related to spilling code... but inlining large functions
(a large number of times) can definitely degrade performances by augmenting
the probability of executing code which is outside the processor internal
cache for instructions.


Armel



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