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authornormal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-12-08 01:46:45 (GMT)
committernormal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-12-08 01:46:45 (GMT)
commit4ebab10bf5ac061bd71df8db2fd7fea61be658c0 (patch)
tree2fe415b36c663360e268acde49590f34280e1ecd /vm_core.h
parentc84e62cd32af5a8407f07bdb0fa8a737492acffb (diff)
compile optimized case dispatch for nil/true/false
nil/true/false are special literals just like floats, integers, literal strings, and symbols. Optimize when statements with them by using a jump table, too. target 0: a (ruby 2.3.0dev (2015-12-08 trunk 52928) [x86_64-linux]) at "/home/ew/rrrr/b/ruby" target 1: b (ruby 2.3.0dev (2015-12-08 master 52928) [x86_64-linux]) at "/home/ew/ruby/b/ruby" benchmark results: minimum results in each 5 measurements. Execution time (sec) name a b loop_whileloop2 0.102 0.103 vm2_case_lit* 1.657 0.549 Speedup ratio: compare with the result of `a' (greater is better) name b loop_whileloop2 0.988 vm2_case_lit* 3.017 * benchmark/bm_vm2_case_lit.rb: new benchmark * compile.c (case_when_optimizable_literal): add nil/true/false * insns.def (opt_case_dispatch): ditto * vm.c (vm_redefinition_check_flag): ditto * vm.c (vm_init_redefined_flag): ditto * vm_core.h: ditto * object.c (InitVM_Object): define === explicitly for nil/true/false * test/ruby/test_case.rb (test_deoptimize_nil): new test * test/ruby/test_optimization.rb (test_opt_case_dispatch): update (test_eqq): new test [ruby-core:71923] [Feature #11769] Original patch by Aaron Patterson <tenderlove@ruby-lang.org> git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52931 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'vm_core.h')
-rw-r--r--vm_core.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/vm_core.h b/vm_core.h
index 2343e11..aecbe61 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -545,6 +545,9 @@ typedef struct rb_vm_struct {
#define SYMBOL_REDEFINED_OP_FLAG (1 << 6)
#define TIME_REDEFINED_OP_FLAG (1 << 7)
#define REGEXP_REDEFINED_OP_FLAG (1 << 8)
+#define NIL_REDEFINED_OP_FLAG (1 << 9)
+#define TRUE_REDEFINED_OP_FLAG (1 << 10)
+#define FALSE_REDEFINED_OP_FLAG (1 << 11)
#define BASIC_OP_UNREDEFINED_P(op, klass) (LIKELY((GET_VM()->redefined_flag[(op)]&(klass)) == 0))