id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
4973	Equations with Complex numbers should always be flattened to scalar components by the NF	Francesco Casella	Per Östlund	"Please consider the attached test case. If I run TestComplex.Basic with the old FE and -d=dumpdaelow, I get 
{{{
1/1 (1): q.re = time   [binding |0|0|0|0|] 
2/2 (1): q.im = 2.0   [binding |0|0|0|0|] 
3/3 (1): x = 2.0 * time   [dynamic |0|0|0|0|] 
4/4 (1): z.im = 0.0   [dynamic |0|0|0|0|] 
5/5 (1): z.re = time   [dynamic |0|0|0|0|] 
6/6 (1): w.re = time   [dynamic |0|0|0|0|] 
7/7 (1): w.im = 1.0   [dynamic |0|0|0|0|] 
8/8 (1): v.im = z.re * w.im + z.im * w.re   [dynamic |0|0|0|0|] 
9/9 (1): v.re = z.re * w.re - z.im * w.im   [dynamic |0|0|0|0|] 
10/10 (1): y.im = time * w.im   [dynamic |0|0|0|0|] 
11/11 (1): y.re = time * w.re   [dynamic |0|0|0|0|] 
12/12 (1): p.im = 1.732050807568877 * w.im   [dynamic |0|0|0|0|] 
13/13 (1): p.re = 1.732050807568877 * w.re   [dynamic |0|0|0|0|] 
14/14 (1): r.re = q.re   [dynamic |0|0|0|0|] 
15/15 (1): r.im = q.im   [dynamic |0|0|0|0|] 
16/16 (1): s.im = x * w.im   [dynamic |0|0|0|0|] 
17/17 (1): s.re = x * w.re   [dynamic |0|0|0|0|] 
}}}
With the NF, I currently get an error because of #4971; if I run TestComplex.Reduced, which doesn't have the offending equation, the output of dumpdaelow is
{{{
1/1 (1): x = 2.0 * time   [dynamic |0|0|0|0|] 
2/2 (1): z.im = 0.0   [dynamic |0|0|0|0|] 
3/3 (1): z.re = time   [dynamic |0|0|0|0|] 
4/4 (1): w.im = 1.0   [dynamic |0|0|0|0|] 
5/5 (1): w.re = time   [dynamic |0|0|0|0|] 
6/6 (1): v.im = z.re * w.im + z.im * w.re   [dynamic |0|0|0|0|] 
7/7 (1): v.re = z.re * w.re - z.im * w.im   [dynamic |0|0|0|0|] 
8/8 (2): y = Complex.'*'.multiply(Complex(time, 0.0), w)   [dynamic |0|0|0|0|] 
9/10 (1): r.im = q.im   [dynamic |0|0|0|0|] 
10/11 (1): r.re = q.re   [dynamic |0|0|0|0|] 
11/12 (2): s = Complex.'*'.multiply(Complex(x, 0.0), w)   [dynamic |0|0|0|0|] 
12/14 (1): q.re = time   [binding |0|0|0|0|] 
13/15 (1): q.im = 2.0   [binding |0|0|0|0|] 
}}}
where it shows that the equations for {{{y}}} and {{{s}}} have not been flattened down to their scalar components. This is not acceptable, as it hampers futher optimizations by the backend.

Please make sure TestComplex.Basic and TesComplex.Test are fully transformed into scalar equations also when processed by the NF.
"	defect	closed	high	2.0.0	New Instantiation		fixed		Vitalij Ruge