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Compile putnil properly

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This commit is contained in:
Takashi Kokubun 2022-12-20 21:54:54 -08:00
parent 8deb0438c4
commit 145c937f3f
3 changed files with 65 additions and 37 deletions
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61
lib/ruby_vm/mjit/compiler.rb
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@ -9,9 +9,6 @@ module RubyVM::MJIT
EndBlock = :end_block
class Compiler
# Ruby constants
Qundef = Fiddle::Qundef
attr_accessor :write_pos
# @param mem_block [Integer] JIT buffer address
@ -24,7 +21,11 @@ module RubyVM::MJIT
# @param iseq [RubyVM::MJIT::CPointer::Struct]
def call(iseq)
return if iseq.body.location.label == '<main>'
iseq.body.jit_func = compile_block(iseq)
asm = X86Assembler.new
compile_prologue(asm)
compile_block(asm, iseq)
iseq.body.jit_func = compile(asm)
rescue Exception => e
$stderr.puts e.full_message # TODO: check verbose
end
@ -35,6 +36,32 @@ module RubyVM::MJIT
private
# ec: rdi
# cfp: rsi
def compile_prologue(asm)
asm.mov(:rbx, [:rsi, C.rb_control_frame_t.offsetof(:sp)]) # rbx = cfp->sp
end
def compile_block(asm, iseq)
index = 0
while index < iseq.body.iseq_size
insn = decode_insn(iseq.body.iseq_encoded[index])
status = compile_insn(asm, insn)
if status == EndBlock
break
end
index += insn.len
end
end
def compile_insn(asm, insn)
case insn.name
when :putnil then @insn_compiler.putnil(asm)
when :leave then @insn_compiler.leave(asm)
else raise NotImplementedError, "insn '#{insn.name}' is not supported yet"
end
end
def compile(asm)
start_addr = write_addr
@ -49,32 +76,6 @@ module RubyVM::MJIT
start_addr
end
# ec -> RDI, cfp -> RSI
def compile_block(iseq)
addr = write_addr
asm = X86Assembler.new
index = 0
while index < iseq.body.iseq_size
insn = decode_insn(iseq.body.iseq_encoded[index])
status = compile_insn(asm, insn)
if status == EndBlock
break
end
index += insn.len
end
compile(asm)
end
def compile_insn(asm, insn)
case insn.name
when :putnil then @insn_compiler.putnil(asm)
when :leave then @insn_compiler.leave(asm)
else raise NotImplementedError, "insn '#{insn.name}' is not supported yet"
end
end
def decode_insn(encoded)
INSNS.fetch(C.rb_vm_insn_decode(encoded))
end