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RJIT: Eliminate known-result guards for blockarg

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This commit is contained in:
Takashi Kokubun 2023-04-04 23:36:24 -07:00
parent 4f77d1cdb8
commit 4e9c3b4518
1 changed files with 4 additions and 10 deletions
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14
lib/ruby_vm/rjit/insn_compiler.rb
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@ -4157,17 +4157,11 @@ module RubyVM::RJIT
# @param asm [RubyVM::RJIT::Assembler]
def guard_block_arg(jit, ctx, asm, calling)
if calling.flags & C::VM_CALL_ARGS_BLOCKARG != 0
# TODO: Skip cmp + jne using Context
block_code = jit.peek_at_stack(0)
block_opnd = ctx.stack_opnd(0) # to be popped after eliminating side exit possibility
if block_code.nil?
asm.cmp(block_opnd, Qnil)
jit_chain_guard(:jne, jit, ctx, asm, counted_exit(side_exit(jit, ctx), :send_block_not_nil))
block_arg_type = ctx.get_opnd_type(StackOpnd[0])
case block_arg_type
in Type::Nil
calling.block_handler = C::VM_BLOCK_HANDLER_NONE
elsif C.to_value(block_code) == C.rb_block_param_proxy
asm.mov(:rax, C.rb_block_param_proxy)
asm.cmp(block_opnd, :rax)
jit_chain_guard(:jne, jit, ctx, asm, counted_exit(side_exit(jit, ctx), :send_block_not_proxy))
in Type::BlockParamProxy
calling.block_handler = C.rb_block_param_proxy
else
asm.incr_counter(:send_block_arg)