SV: [PATCH] jit: Add support for global rvalue initialization and ctors

[Petter Tomner]

Hi! I verified that it works with forward struct declares and circular pointers for globals and locals.

I added it as tests last in:
gcc/testsuite/jit.dg/test-global-init-rvalue.c
gcc/testsuite/jit.dg/test-local-init-rvalue.c

Regards,