Bug 14672 – [REG2.067.0] Internal error: e2ir.c 4620 when copying array of derived class to an array of base class

To reproduce: class B {} class D : B {} void main() { D[] arr_d; B[] arr_b; arr_b[] = arr_d[]; // Internal error: e2ir.c 4620 arr_b = cast(B[])arr_d; // Requires cast, cuz of arr_b = arr_d; // "Error: cannot implicitly // convert expression (arr_d) of type D[] to B[]" D d = new D(); arr_b = [d]; // This does work as expected } Tested in DMD64 D Compiler v2.067.1 on Linux.

Regression from 2.067.0.

Commits pushed to master at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/306e7b146535c84c065c41f52b3674c2ee1ac832 fix Issue 14672 - Internal error: e2ir.c 4620 when copying array of derived class to an array of base class https://github.com/D-Programming-Language/dmd/commit/c30cddff4a884d9695cb90871835df4f4cd0b810 Merge pull request #4736 from 9rnsr/fix14672 [REG2.067.0] Issue 14672 - Internal error: e2ir.c 4620 when copying array of derived class to an array of base class

Commits pushed to stable at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/306e7b146535c84c065c41f52b3674c2ee1ac832 fix Issue 14672 - Internal error: e2ir.c 4620 when copying array of derived class to an array of base class https://github.com/D-Programming-Language/dmd/commit/c30cddff4a884d9695cb90871835df4f4cd0b810 Merge pull request #4736 from 9rnsr/fix14672