LabVIEW
Constant Folding in 2009 vs. 8.2
Solved!
Has constant folding, or the displaying thereof, changed since 8.2? I have constant folding on for structures as well as wires. Notice I have a structure and a wire that do not match...
The same comparison holds true for 8.5 and 8.6.
As Guenter expressed, I can't get a structure to show folding no matter what combination of saving, running, disabling debugging I try. I guess, unless we hear further, that as of 2009, structures don't get folded?
There have been some changes made between 8.6 and 2009 regarding constant folding and I wanted to clear everything up.
First of all, in LabVIEW 2009 structures no longer get constantly folded if debugging is on. Go to VI properties on the execution page, turn off debugging and recompile your code you will see the appropriate structure folding.
That being said you will still not see constant folding on the example you posted in 2009. Because the code you wrote does not have any outputs, it will be removed in optimization, and therefore will not be constant folded. Take a look at the example below. This is in LabVIEW 2009 with debugging turned off. The top structures show the folding because they are connected to an indicator but the bottom two do not show folding since they are removed at compile.
First of all, in LabVIEW 2009 structures no longer get constantly folded if debugging is on. Go to VI properties on the execution page, turn off debugging and recompile your code you will see the appropriate structure folding.
That being said you will still not see constant folding on the example you posted in 2009. Because the code you wrote does not have any outputs, it will be removed in optimization, and therefore will not be constant folded. Take a look at the example below. This is in LabVIEW 2009 with debugging turned off. The top structures show the folding because they are connected to an indicator but the bottom two do not show folding since they are removed at compile.
