Bad parameter indexing with Evaluate=true

[crupp@…]

The following model gives two different answers depending on whether Evaluate=true or false is used for the parameter. This only happens when the parameter is a two-dimensional array and when the variable R_rel_A is used in the equation (although it is a null rotation). Further investigation shows that phi_B[:,4:6] does not get correctly substituted in the reduction of tmpB because it substitutes from the wrong index of phi_B.

This issue may be related to #3386.

loadString("
model indexbug
  import Modelica.Mechanics.MultiBody.Frames;
  parameter Real[2, 6] phi_A = {{1, 2, 3, 4, 5, 6}, {21, 22, 23, 24, 25, 26}} annotation(Evaluate = false);
  parameter Real[2, 6] phi_B = {{1, 2, 3, 4, 5, 6}, {21, 22, 23, 24, 25, 26}} annotation(Evaluate = true);
  Real[2] tmpA, tmpB;
  Frames.Orientation R_rel_A;
equation
  R_rel_A = Frames.nullRotation();
  tmpA = phi_A[:, 1:3] * Frames.resolve1(R_rel_A, {0, 1, 0}) + phi_A[:, 4:6] * Frames.resolve1(R_rel_A, {0, 0, -1});
  tmpB = phi_B[:, 1:3] * Frames.resolve1(R_rel_A, {0, 1, 0}) + phi_B[:, 4:6] * Frames.resolve1(R_rel_A, {0, 0, -1});
end indexbug;
");

simulate(indexbug);
val(tmpA[1],1);
val(tmpB[1],1);

Tested in v1.9.3-dev-1158-g32bc683.

[crupp@…]

Seems to be working now. Not sure when it was fixed.