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module RubyVM::MJIT
class Context < Struct.new(
:stack_size, # @param [Integer] The number of values on the stack
:sp_offset, # @param [Integer] JIT sp offset relative to the interpreter's sp
:chain_depth, # @param [Integer] jit_chain_guard depth
)
def initialize(stack_size: 0, sp_offset: 0, chain_depth: 0) = super
def stack_push(size = 1)
self.stack_size += size
self.sp_offset += size
stack_opnd(0)
end
def stack_pop(size = 1)
opnd = stack_opnd(0)
self.stack_size -= size
self.sp_offset -= size
opnd
end
def stack_opnd(depth_from_top)
[SP, C.VALUE.size * (self.sp_offset - 1 - depth_from_top)]
end
def sp_opnd(offset_bytes = 0)
[SP, (C.VALUE.size * self.sp_offset) + offset_bytes]
end
end
end
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