From 669a55dfed5cc6e32afee69694b95e8b4c187f54 Mon Sep 17 00:00:00 2001 From: normal Date: Mon, 27 Mar 2017 06:12:37 +0000 Subject: fix redefinition optimization for -"literal string" (UMinus) Unfortunately this enlarges insns.def by yet another instruction. However, it is much prettier than opt_str_freeze in use, and maybe we can avoid having so many instructions in the future. [ruby-core:80368] * insns.def (DEFINE_INSN): new instruction: opt_str_uminus (maybe temporary) * compile.c (iseq_compile_each0): split instructions * test/ruby/test_optimization.rb (test_string_uminus): new test * vm.c (vm_init_redefined_flag): set redefinintion flag for uminus * vm_core.h (enum ruby_basic_operators): add BOP_UMINUS git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58144 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- test/ruby/test_optimization.rb | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'test/ruby') diff --git a/test/ruby/test_optimization.rb b/test/ruby/test_optimization.rb index 502d12389e..7c8990fde8 100644 --- a/test/ruby/test_optimization.rb +++ b/test/ruby/test_optimization.rb @@ -104,6 +104,11 @@ class TestRubyOptimization < Test::Unit::TestCase assert_redefine_method('String', 'freeze', 'assert_nil "foo".freeze') end + def test_string_uminus + assert_same "foo".freeze, -"foo" + assert_redefine_method('String', '-@', 'assert_nil(-"foo")') + end + def test_string_freeze_saves_memory n = 16384 data = '.'.freeze -- cgit v1.2.3