Eigen Compiler Suite

During the migration of the standard library, I encountered a problem that I can't solve.

I had only used the "copy" instruction in one of the ~200 test cases so far, and there the result of the instruction had no influence on the reported result. Only now have I come across a case where a struct is returned as a function result, for which two copy operations are required. I had to finish implementing and debugging the feature first anyway, but it's still not working properly.

Enclosed is the code example "struct_return.c" (together with the code and the other files required for reproduction), which presents the problem in a minimal context.

The expected output is

compiling struct_return.c
quot=33 rem=44
quot=33 rem=44
0

but I still get

compiling struct_return.c
quot=33 rem=44
quot=0 rem=0
1

and don't know what I should change to make it work. I also verified in the documentation that the third op is indeed the number of "octets" (not the number of "values" as in fill).

I didn't look at the generated machine code yet.