Hello!
> Here is a patch to add size relocation and instruction to obtain object's
> size in i386 target.
+(define_insn "move_size_reloc_<mode>"
+ [(set (match_operand:SWI48 0 "register_operand" "=r")
+ (match_operand:<MODE> 1 "size_relocation" "Z"))]
+ ""
+{
+ return "mov{<imodesuffix>}\t{%1, %0|%0, %1}";
Please don't change x86_64_immediate_operand just to use "Z"
constraint The predicate is used in a couple of other places that for
sure don't accept your change.
Better write this insn in an explicit way (see for example
tls_initial_exec_64_sun). Something like:
(define_insn "move_size_reloc_<mode>"
[(set (match_operand:SWI48 0 "register_operand" "=r")
(unspec:SWI48
[(match_operand 1 "symbolic_operand" "..." )]
UNSPEC_SIZEOF))]
""
"mov{<imodesuffix>}\t{%a1@SIZE, %0|%0, %a1@SIZE}")
You will probably need to define new operand 1 predicate and constraint.
Uros.
