review request (M): 7090968 Allow adlc register class to depend on runtime conditions

Tom Rodriguez tom.rodriguez at
Fri Sep 16 12:03:55 PDT 2011

Looks good to me.


On Sep 15, 2011, at 7:21 AM, Roland Westrelin wrote:

> This adds the ability to define reg_class'es in the ad file that, rather than being static, depend on runtime conditions. For the current XXX reg_class, the generated XXX_mask const RegMask declarations are renamed _XXX_mask. XXX_mask inline function definitions are introduced that return _XXX_mask. A new form of reg_class definitions such as:
> reg_class some_reg_class %{
> 	// some C code
> %}
> is introduced. In this case, the body of the generated inline SOME_REG_CLASS_mask function is defined with the C code present between %{ and %} above.
> Tom suggested I used this opportunity to get rid of inline_cache_reg_mask(), interpreter_method_oop_reg_mask(), interpreter_frame_pointer_reg_mask() that are unused. 
> Roland.

More information about the hotspot-compiler-dev mailing list