gcc/jit/ChangeLog:
	* libgccjit.c (gcc_jit_block_add_assignment_op): Check that the
	lvalue and the rvalue are of compatible type.

gcc/testsuite/ChangeLog:
	* jit.dg/test-error-mismatching-types-in-assignment-op.c: New
	test case.

From-SVN: r219681