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RJIT: Update type information on setlocal

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This commit is contained in:
Takashi Kokubun 2023-04-03 22:07:52 -07:00
parent 6ab86e4626
commit 6a4087702b
1 changed files with 23 additions and 6 deletions
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29
lib/ruby_vm/rjit/insn_compiler.rb
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@ -21,7 +21,16 @@ module RubyVM::RJIT
# @param insn `RubyVM::RJIT::Instruction`
def compile(jit, ctx, asm, insn)
asm.incr_counter(:rjit_insns_count)
asm.comment("Insn: #{insn.name}")
insn_idx = format('%04d', (jit.pc.to_i - jit.iseq.body.iseq_encoded.to_i) / C.VALUE.size)
asm.comment("Insn: #{insn_idx} #{insn.name}")
# stack = ctx.stack_size.times.map do |stack_idx|
# ctx.get_opnd_type(StackOpnd[ctx.stack_size - stack_idx - 1]).type
# end
# locals = jit.iseq.body.local_table_size.times.map do |local_idx|
# (ctx.local_types[local_idx] || Type::Unknown).type
# end
# asm.comment("Insn: #{insn_idx} #{insn.name} (stack: [#{stack.join(', ')}], locals: [#{locals.join(', ')}])")
# 83/102
case insn.name
@ -3372,6 +3381,8 @@ module RubyVM::RJIT
end
def jit_setlocal_generic(jit, ctx, asm, idx:, level:)
value_type = ctx.get_opnd_type(StackOpnd[0])
# Load environment pointer EP at level
ep_reg = :rax
jit_get_ep(asm, level, reg: ep_reg)
@ -3379,13 +3390,19 @@ module RubyVM::RJIT
# Write barriers may be required when VM_ENV_FLAG_WB_REQUIRED is set, however write barriers
# only affect heap objects being written. If we know an immediate value is being written we
# can skip this check.
unless value_type.imm?
# flags & VM_ENV_FLAG_WB_REQUIRED
flags_opnd = [ep_reg, C.VALUE.size * C::VM_ENV_DATA_INDEX_FLAGS]
asm.test(flags_opnd, C::VM_ENV_FLAG_WB_REQUIRED)
# flags & VM_ENV_FLAG_WB_REQUIRED
flags_opnd = [ep_reg, C.VALUE.size * C::VM_ENV_DATA_INDEX_FLAGS]
asm.test(flags_opnd, C::VM_ENV_FLAG_WB_REQUIRED)
# if (flags & VM_ENV_FLAG_WB_REQUIRED) != 0
asm.jnz(side_exit(jit, ctx))
end
# if (flags & VM_ENV_FLAG_WB_REQUIRED) != 0
asm.jnz(side_exit(jit, ctx))
if level == 0
local_idx = ep_offset_to_local_idx(jit.iseq, idx)
ctx.set_local_type(local_idx, value_type)
end
# Pop the value to write from the stack
stack_top = ctx.stack_pop(1)