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Optimize Integer#===

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This commit is contained in:
Takashi Kokubun 2023-03-02 22:52:32 -08:00
parent 92efd0569a
commit 2ecf77ce20
Notes: git 2023-03-06 07:29:45 +00:00
1 changed files with 30 additions and 2 deletions
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32
lib/ruby_vm/mjit/insn_compiler.rb
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@ -1686,7 +1686,7 @@ module RubyVM::MJIT
# @param asm [RubyVM::MJIT::Assembler]
def jit_rb_obj_not(jit, ctx, asm, argc)
return false if argc != 0
asm.comment('jit_rb_obj_not')
asm.comment('rb_obj_not')
recv = ctx.stack_pop
# This `test` sets ZF only for Qnil and Qfalse, which let cmovz set.
@ -1699,13 +1699,38 @@ module RubyVM::MJIT
true
end
# @param jit [RubyVM::MJIT::JITState]
# @param ctx [RubyVM::MJIT::Context]
# @param asm [RubyVM::MJIT::Assembler]
def jit_rb_int_equal(jit, ctx, asm, argc)
return false if argc != 1
return false unless two_fixnums_on_stack?(jit)
side_exit = side_exit(jit, ctx)
guard_two_fixnums(jit, ctx, asm, side_exit)
# Compare the arguments
asm.comment('rb_int_equal')
arg1 = ctx.stack_pop(1)
arg0 = ctx.stack_pop(1)
asm.mov(:rax, arg1)
asm.cmp(arg0, :rax)
asm.mov(:rax, Qfalse)
asm.mov(:rcx, Qtrue)
asm.cmove(:rax, :rcx)
stack_ret = ctx.stack_push
asm.mov(stack_ret, :rax)
true
end
# @param jit [RubyVM::MJIT::JITState]
# @param ctx [RubyVM::MJIT::Context]
# @param asm [RubyVM::MJIT::Assembler]
def jit_rb_int_mul(jit, ctx, asm, argc)
return false if argc != 1
return false unless two_fixnums_on_stack?(jit)
asm.comment('jit_rb_int_mul')
asm.comment('rb_int_mul')
side_exit = side_exit(jit, ctx)
guard_two_fixnums(jit, ctx, asm, side_exit)
@ -1730,6 +1755,9 @@ module RubyVM::MJIT
def register_cfunc_codegen_funcs
register_cfunc_method(BasicObject, :!, :jit_rb_obj_not)
register_cfunc_method(Integer, :==, :jit_rb_int_equal)
register_cfunc_method(Integer, :===, :jit_rb_int_equal)
register_cfunc_method(Integer, :*, :jit_rb_int_mul)
end