* if stmt in kernel source
@ 2011-06-14 5:27 Venkateswarlu P
2011-06-14 5:34 ` KyongHo Cho
0 siblings, 1 reply; 2+ messages in thread
From: Venkateswarlu P @ 2011-06-14 5:27 UTC (permalink / raw)
To: kernelnewbies
explain about * likely * and * unlikely * constructs used in*if
* stmt
**
P VENKATESWARLU
M.Tech (CSE) II year
NIT Calicut ,Kerala* **
*+91-9995115752
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* if stmt in kernel source
2011-06-14 5:27 if stmt in kernel source Venkateswarlu P
@ 2011-06-14 5:34 ` KyongHo Cho
0 siblings, 0 replies; 2+ messages in thread
From: KyongHo Cho @ 2011-06-14 5:34 UTC (permalink / raw)
To: kernelnewbies
On Tue, Jun 14, 2011 at 2:27 PM, Venkateswarlu P
<p.venkatesh551@gmail.com> wrote:
> explain about? likely??? and? unlikely??????? constructs??????? used in if
> stmt
AFAIK, it is a hint to the compiler if the condition of conditional
statement is likely to be true or not
for code optimization with branch predictor.
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2011-06-14 5:27 if stmt in kernel source Venkateswarlu P
2011-06-14 5:34 ` KyongHo Cho
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