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7077312: Provide a CALL effect for instruct declaration in the ad file

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Abstracted way to declare that the MachNode has the effect of a call (kills caller save registers, preserves callee save registers)

Reviewed-by: twisti, never
This commit is contained in:
Roland Westrelin 2011-09-14 09:22:51 +02:00
parent 89d4179a4b
commit 9d8e44db59
11 changed files with 93 additions and 36 deletions
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3
hotspot/src/share/vm/opto/node.hpp
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@ -641,7 +641,8 @@ public:
Flag_is_dead_loop_safe = Flag_is_cisc_alternate << 1,
Flag_may_be_short_branch = Flag_is_dead_loop_safe << 1,
Flag_avoid_back_to_back = Flag_may_be_short_branch << 1,
_max_flags = (Flag_avoid_back_to_back << 1) - 1 // allow flags combination
Flag_has_call = Flag_avoid_back_to_back << 1,
_max_flags = (Flag_has_call << 1) - 1 // allow flags combination
};
private: