id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
3997	Missing replacement of identifiers when inlining functions	Rüdiger Franke	somebody	"OpenModelica generated unnecessarily large and non-linear equation systems for the PowerSystems library so far. The reason was missing `annotation(Inline=true)` for small one-liner functions.

Commit
https://github.com/modelica/PowerSystems/commit/61ba3296af8b2ebdcb86adff0c222291a6a820d7
introduces these annotations.

In some models the compilation fails due to missing identifier `xx` now. This comes from inlining:
{{{#!mo
within PhaseSystems.ThreePhase_dq0;
    redeclare function jj ""Vectorized version of j""
      input Real[:,:] xx ""array of voltage or current vectors"";
      output Real[size(xx,1),size(xx,2)] yy ""array of rotated vectors"";
    algorithm
      yy := cat(1, {-xx[2,:], xx[1,:]}, zeros(size(xx,1)-2, size(xx,2)));
      annotation(Inline=true);
    end jj;
}}}
See e.g.:
    PowerSystems.Examples.Spot.AC3ph.Line
    PowerSystems.Examples.Spot.TransmissionAC3ph.FaultTline
    PowerSystems.Examples.Spot.TransmissionAC3ph.Tline

Unfortunately the nightly tests don't report `backenddaeinfo`. Shouldn't the nightly tests use the same options for MSL and for other libraries, like PowerSystems?
"	defect	new	high	Future	*unknown*				Willi Braun