SpeCULATIVE optimization

From: Lars Bro <lbr_at_dksin.dk>
Date: Fri, 27 Nov 1998 09:35:06 +0100

Hi,
 
 I have been looking around to find out what SPECULATIVE optimization
 is. As far as I can see, one can ask the compiler to generate code
 that tries to "precompute" values that it thinks will be needed
 soon. This may cause FPU traps and violations which in this case
 will be ignored by the system (???) It doesn´t take extra time to
 do this because only "idle" instructions are used to "speculate"
 (???)

-- 
   Lars Bro                                        lbr_at_dksin.dk
   ABB Daimler-Benz Transportation Signal A/S      +45 36 39 01 77

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Hi,

I have been looking around to find out what SPECULATIVE optimization
is. As far as I can see, one can ask the compiler to generate code
that tries to "precompute" values that it thinks will be needed
soon. This may cause FPU traps and violations which in this case
will be ignored by the system (???) It doesn´t take extra time to
do this because only "idle" instructions are used to "speculate"
(???)

Anybody knows what it is ?

-- 
   Lars Bro                                        lbr_at_dksin.dk
   ABB Daimler-Benz Transportation Signal A/S      +45 36 39 01 77

Received on Fri Dec 04 1998 - 10:26:28 NZDT