[M3devel] aligned_procedures: suggest "closure_marker_size"

[Jay K]

MIPS64, SPARC64 and maybe others could probably all benefit slightly from
  the closure marker being a 4 byte -1 instead of an INTEGER.

 

 

 That is: 64bit architectures with a fixed size 4 byte instruction where alignment is checked


 

 That is, we should probably make their be a per-target variable "closure marker size"
  that is 4 for all current targets (IA64 should probably be 16 though),
  though one would have to look into the various instruction encodings.



 - Jay
 		 	   		  
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