LabVIEW Compiler optimizations - Revision history

Logmanoriginal: Mark as stub, add categories

2024-08-06T17:04:42Z

Mark as stub, add categories

← Older revision		Revision as of 17:04, 6 August 2024
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			{{stub}}
	=Compiler Optimization=		=Compiler Optimization=
	==Constant folding==		==Constant folding==
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	==External links==		==External links==
	*[http://zone.ni.com/devzone/cda/pub/p/id/347 Fuzzy Wires and Constant Folding in LabVIEW]		*[http://zone.ni.com/devzone/cda/pub/p/id/347 Fuzzy Wires and Constant Folding in LabVIEW]

			[[Category:LabVIEW internals]]

Logmanoriginal: Logmanoriginal moved page Compiler Optimization to LabVIEW Compiler optimizations: Clarify article subject

2024-08-06T17:02:53Z

Logmanoriginal moved page Compiler Optimization to LabVIEW Compiler optimizations: Clarify article subject

← Older revision	Revision as of 17:02, 6 August 2024
(No difference)

Michael_Aivaliotis at 15:26, 2 June 2008

2008-06-02T15:26:37Z

← Older revision		Revision as of 15:26, 2 June 2008
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	=Compiler Optimization=		=Compiler Optimization=
	==Constant folding==		==Constant folding==
	~~See [http://www.ni.com/news/inst_news_q2_08.htm this] NI news letter~~

	==Removing unused code==		==Removing unused code==
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	The upper part tries to get a caption for a control that doesn't have a caption. Normally this would through an error, but the compiler doesn't execute the property because the caption reference isn't wired.		The upper part tries to get a caption for a control that doesn't have a caption. Normally this would through an error, but the compiler doesn't execute the property because the caption reference isn't wired.
	The lower part uses the caption reference and troughs an error.		The lower part uses the caption reference and troughs an error.
			==External links==
			*[http://zone.ni.com/devzone/cda/pub/p/id/347 Fuzzy Wires and Constant Folding in LabVIEW]

Tcplomp at 07:01, 1 June 2008

2008-06-01T07:01:57Z

← Older revision		Revision as of 07:01, 1 June 2008
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	=Compiler Optimization=		=Compiler Optimization=
	==Constant folding==		==Constant folding==
	See ~~here~~		See [http://www.ni.com/news/inst_news_q2_08.htm this] NI news letter

	==Removing unused code==		==Removing unused code==
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	The same goes for property read nodes where the output is unwired.		The same goes for property read nodes where the output is unwired.
	See the following example:		See the following example:
			[[Image:CompilerOptimization.png]]

	The upper part tries to get a caption for a control that doesn't have a caption. Normally this would through an error, but the compiler doesn't execute the property because the caption reference isn't wired.		The upper part tries to get a caption for a control that doesn't have a caption. Normally this would through an error, but the compiler doesn't execute the property because the caption reference isn't wired.
	The lower part uses the caption reference and troughs an error.		The lower part uses the caption reference and troughs an error.

Tcplomp: New page: =Compiler Optimization= ==Constant folding== See here ==Removing unused code== The LabVIEW compiler removes any unused code, code that is inside a case that will never execute is excluded...

2008-06-01T06:59:09Z

New page: =Compiler Optimization= ==Constant folding== See here ==Removing unused code== The LabVIEW compiler removes any unused code, code that is inside a case that will never execute is excluded...

New page

=Compiler Optimization=
==Constant folding==
See here

==Removing unused code==
The LabVIEW compiler removes any unused code, code that is inside a case that will never execute is excluded form the compiled code. This gives the infamous warning on 8+ systems that opens a 7- VI where a case structure that is fed by a constant, the constant is replaced by a hidden control to maintain compatibility.

The same goes for property read nodes where the output is unwired.
See the following example:

The upper part tries to get a caption for a control that doesn't have a caption. Normally this would through an error, but the compiler doesn't execute the property because the caption reference isn't wired.
The lower part uses the caption reference and troughs an error.