k0kubun	2018-08-08 01:27:45 +0900 (Wed, 08 Aug 2018)

  New Revision: 64221

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=64221

  Log:
    mjit.c: initial support for mswin MJIT
    
    By this commit's changes in other files, now MJIT started to work on VC++.
    Unfortunately some features are still broken and they'll be fixed later.
    
    This also suppresses cl.exe's default output to stdout because there
    seems to be no option to do it. Tweaking some log messages as well.
    
    vm_core.h: declare `__declspec(dllimport)` to export them correctly on mswin.
    vm_insnhelper.h: ditto
    mjit.h: ditto
    
    test_jit.rb: skipped some pending tests.

  Modified files:
    trunk/mjit.c
    trunk/mjit.h
    trunk/test/ruby/test_jit.rb
    trunk/vm_core.h
    trunk/vm_insnhelper.h
Index: vm_core.h
===================================================================
--- vm_core.h	(revision 64220)
+++ vm_core.h	(revision 64221)
@@ -1650,10 +1650,10 @@ VALUE rb_catch_protect(VALUE t, rb_block https://github.com/ruby/ruby/blob/trunk/vm_core.h#L1650
 #if RUBY_VM_THREAD_MODEL == 2
 RUBY_SYMBOL_EXPORT_BEGIN
 
-extern rb_vm_t *ruby_current_vm_ptr;
-extern rb_execution_context_t *ruby_current_execution_context_ptr;
-extern rb_event_flag_t ruby_vm_event_flags;
-extern rb_event_flag_t ruby_vm_event_enabled_flags;
+RUBY_EXTERN rb_vm_t *ruby_current_vm_ptr;
+RUBY_EXTERN rb_execution_context_t *ruby_current_execution_context_ptr;
+RUBY_EXTERN rb_event_flag_t ruby_vm_event_flags;
+RUBY_EXTERN rb_event_flag_t ruby_vm_event_enabled_flags;
 
 RUBY_SYMBOL_EXPORT_END
 
Index: mjit.c
===================================================================
--- mjit.c	(revision 64220)
+++ mjit.c	(revision 64221)
@@ -765,7 +765,22 @@ compile_c_to_so(const char *c_file, cons https://github.com/ruby/ruby/blob/trunk/mjit.c#L765
     if (args == NULL)
         return FALSE;
 
-    exit_code = exec_process(cc_path, args);
+    {
+        int stdout_fileno = _fileno(stdout);
+        int orig_fd = dup(stdout_fileno);
+        int dev_null = rb_cloexec_open(ruby_null_device, O_WRONLY, 0);
+
+        /* Discard cl.exe's outputs like:
+             _ruby_mjit_p12u3.c
+               Creating library C:.../_ruby_mjit_p12u3.lib and object C:.../_ruby_mjit_p12u3.exp
+           TODO: Don't discard them on --jit-verbose=2+ */
+        dup2(dev_null, stdout_fileno);
+        exit_code = exec_process(cc_path, args);
+        dup2(orig_fd, stdout_fileno);
+
+        close(orig_fd);
+        close(dev_null);
+    }
     free(args);
 
     if (exit_code != 0)
@@ -1113,7 +1128,7 @@ convert_unit_to_func(struct rb_mjit_unit https://github.com/ruby/ruby/blob/trunk/mjit.c#L1128
         const char *label = RSTRING_PTR(unit->iseq->body->location.label);
         const char *path = RSTRING_PTR(s);
         int lineno = FIX2INT(unit->iseq->body->location.first_lineno);
-        verbose(2, "start compile: %s@%s:%d -> %s", label, path, lineno, c_file);
+        verbose(2, "start compilation: %s@%s:%d -> %s", label, path, lineno, c_file);
         fprintf(f, "/* %s@%s:%d */\n\n", label, path, lineno);
     }
     success = mjit_compile(f, unit->iseq->body, funcname);
@@ -1812,7 +1827,7 @@ mjit_finish(void) https://github.com/ruby/ruby/blob/trunk/mjit.c#L1827
         return;
 
     /* Wait for pch finish */
-    verbose(2, "Canceling worker thread");
+    verbose(2, "Stopping worker thread");
     CRITICAL_SECTION_START(3, "in mjit_finish to wakeup from pch");
     /* As our threads are detached, we could just cancel them.  But it
        is a bad idea because OS processes (C compiler) started by
Index: mjit.h
===================================================================
--- mjit.h	(revision 64220)
+++ mjit.h	(revision 64221)
@@ -56,8 +56,8 @@ typedef VALUE (*mjit_func_t)(rb_executio https://github.com/ruby/ruby/blob/trunk/mjit.h#L56
 
 extern int mjit_enabled;
 RUBY_SYMBOL_EXPORT_BEGIN
-extern struct mjit_options mjit_opts;
-extern int mjit_call_p;
+RUBY_EXTERN struct mjit_options mjit_opts;
+RUBY_EXTERN int mjit_call_p;
 
 extern void mjit_add_iseq_to_process(const rb_iseq_t *iseq);
 extern mjit_func_t mjit_get_iseq_func(struct rb_iseq_constant_body *body);
Index: vm_insnhelper.h
===================================================================
--- vm_insnhelper.h	(revision 64220)
+++ vm_insnhelper.h	(revision 64221)
@@ -14,10 +14,10 @@ https://github.com/ruby/ruby/blob/trunk/vm_insnhelper.h#L14
 
 RUBY_SYMBOL_EXPORT_BEGIN
 
-extern VALUE ruby_vm_const_missing_count;
-extern rb_serial_t ruby_vm_global_method_state;
-extern rb_serial_t ruby_vm_global_constant_state;
-extern rb_serial_t ruby_vm_class_serial;
+RUBY_EXTERN VALUE ruby_vm_const_missing_count;
+RUBY_EXTERN rb_serial_t ruby_vm_global_method_state;
+RUBY_EXTERN rb_serial_t ruby_vm_global_constant_state;
+RUBY_EXTERN rb_serial_t ruby_vm_class_serial;
 
 RUBY_SYMBOL_EXPORT_END
 
Index: test/ruby/test_jit.rb
===================================================================
--- test/ruby/test_jit.rb	(revision 64220)
+++ test/ruby/test_jit.rb	(revision 64221)
@@ -52,6 +52,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L52
   end
 
   def test_compile_insn_local
+    skip_on_mswin
     assert_compile_once("#{<<~"begin;"}\n#{<<~"end;"}", result_inspect: '1', insns: %i[setlocal_WC_0 getlocal_WC_0])
     begin;
       foo = 1
@@ -77,6 +78,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L78
   end
 
   def test_compile_insn_blockparam
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: '3', success_count: 2, insns: %i[getblockparam setblockparam])
     begin;
       def foo(&b)
@@ -99,6 +101,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L101
 
   def test_compile_insn_setspecial
     verbose_bak, $VERBOSE = $VERBOSE, nil
+    skip_on_mswin
     assert_compile_once("#{<<~"begin;"}\n#{<<~"end;"}", result_inspect: 'true', insns: %i[setspecial])
     begin;
       true if nil.nil?..nil.nil?
@@ -150,6 +153,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L153
   end
 
   def test_compile_insn_putself
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: 'hello', success_count: 1, insns: %i[putself])
     begin;
       proc { print "hello" }.call
@@ -163,6 +167,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L167
   end
 
   def test_compile_insn_putspecialobject_putiseq
+    skip_on_mswin
     if /mingw/ =~ RUBY_PLATFORM
       skip "this is currently failing on MinGW [Bug #14948]"
     end
@@ -179,10 +184,12 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L184
   end
 
   def test_compile_insn_putstring_concatstrings_tostring
+    skip_on_mswin
     assert_compile_once('"a#{}b" + "c"', result_inspect: '"abc"', insns: %i[putstring concatstrings tostring])
   end
 
   def test_compile_insn_freezestring
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~'end;'}", stdout: 'true', success_count: 1, insns: %i[freezestring])
     begin;
       # frozen_string_literal: true
@@ -191,6 +198,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L198
   end
 
   def test_compile_insn_toregexp
+    skip_on_mswin
     assert_compile_once('/#{true}/ =~ "true"', result_inspect: '0', insns: %i[toregexp])
   end
 
@@ -203,6 +211,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L211
   end
 
   def test_compile_insn_intern_duparray
+    skip_on_mswin
     assert_compile_once('[:"#{0}"] + [1,2,3]', result_inspect: '[:"0", 1, 2, 3]', insns: %i[intern duparray])
   end
 
@@ -211,6 +220,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L220
   end
 
   def test_compile_insn_concatarray
+    skip_on_mswin
     assert_compile_once('["t", "r", *x = "u", "e"].join', result_inspect: '"true"', insns: %i[concatarray])
   end
 
@@ -244,6 +254,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L254
   end
 
   def test_compile_insn_dupn
+    skip_on_mswin
     assert_compile_once("#{<<~"begin;"}\n#{<<~"end;"}", result_inspect: 'true', insns: %i[dupn])
     begin;
       klass = Class.new
@@ -277,10 +288,12 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L288
   end
 
   def test_compile_insn_defined
+    skip_on_mswin
     assert_compile_once('defined?(a)', result_inspect: 'nil', insns: %i[defined])
   end
 
   def test_compile_insn_checkkeyword
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: 'true', success_count: 1, insns: %i[checkkeyword])
     begin;
       def test(x: rand)
@@ -299,6 +312,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L312
   end
 
   def test_compile_insn_send
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: '1', success_count: 2, insns: %i[send])
     begin;
       print proc { yield_self { 1 } }.call
@@ -338,10 +352,12 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L352
   end
 
   def test_compile_insn_opt_send_without_block
+    skip_on_mswin
     assert_compile_once('print', result_inspect: 'nil', insns: %i[opt_send_without_block])
   end
 
   def test_compile_insn_invokesuper
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: '3', success_count: 4, insns: %i[invokesuper])
     begin;
       mod = Module.new {
@@ -360,6 +376,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L376
   end
 
   def test_compile_insn_invokeblock_leave
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: '2', success_count: 2, insns: %i[invokeblock leave])
     begin;
       def foo
@@ -370,6 +387,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L387
   end
 
   def test_compile_insn_throw
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: '4', success_count: 2, insns: %i[throw])
     begin;
       def test
@@ -415,6 +433,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L433
   end
 
   def test_compile_insn_checktype
+    skip_on_mswin
     assert_compile_once("#{<<~"begin;"}\n#{<<~'end;'}", result_inspect: '"42"', insns: %i[checktype])
     begin;
       a = '2'
@@ -427,6 +446,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L446
   end
 
   def test_compile_insn_once
+    skip_on_mswin
     assert_compile_once('/#{true}/o =~ "true" && $~.to_a', result_inspect: '["true"]', insns: %i[once])
   end
 
@@ -446,6 +466,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L466
   end
 
   def test_compile_insn_opt_cmp
+    skip_on_mswin
     assert_compile_once('(1 == 1) && (1 != 2)', result_inspect: 'true', insns: %i[opt_eq opt_neq])
   end
 
@@ -458,6 +479,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L479
   end
 
   def test_compile_insn_opt_aref
+    skip_on_mswin
     # optimized call (optimized JIT) -> send call
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: '21', success_count: 2, min_calls: 1, insns: %i[opt_aref])
     begin;
@@ -487,10 +509,12 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L509
   end
 
   def test_compile_insn_opt_aref_with
+    skip_on_mswin
     assert_compile_once("{ '1' => 2 }['1']", result_inspect: '2', insns: %i[opt_aref_with])
   end
 
   def test_compile_insn_opt_aset
+    skip_on_mswin
     assert_compile_once("#{<<~"begin;"}\n#{<<~"end;"}", result_inspect: '5', insns: %i[opt_aset opt_aset_with])
     begin;
       hash = { '1' => 2 }
@@ -515,6 +539,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L539
   end
 
   def test_compile_insn_opt_not
+    skip_on_mswin
     assert_compile_once('!!true', result_inspect: 'true', insns: %i[opt_not])
   end
 
@@ -531,6 +556,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L556
   end
 
   def test_jit_output
+    skip_on_mswin
     out, err = eval_with_jit('5.times { puts "MJIT" }', verbose: 1, min_calls: 5)
     assert_equal("MJIT\n" * 5, out)
     assert_match(/^#{JIT_SUCCESS_PREFIX}: block in <main>@-e:1 -> .+_ruby_mjit_p\d+u\d+\.c$/, err)
@@ -538,6 +564,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L564
   end
 
   def test_unload_units
+    skip_on_mswin
     Dir.mktmpdir("jit_test_unload_units_") do |dir|
       # MIN_CACHE_SIZE is 10
       out, err = eval_with_jit({"TMPDIR"=>dir}, "#{<<~"begin;"}\n#{<<~'end;'}", verbose: 1, min_calls: 1, max_cache: 10)
@@ -575,6 +602,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L602
   end
 
   def test_local_stack_on_exception
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: '3', success_count: 2)
     begin;
       def b
@@ -594,6 +622,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L622
   end
 
   def test_local_stack_with_sp_motion_by_blockargs
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: '1', success_count: 2)
     begin;
       def b(base)
@@ -615,6 +644,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L644
   end
 
   def test_catching_deep_exception
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: '1', success_count: 4)
     begin;
       def catch_true(paths, prefixes) # catch_except_p: TRUE
@@ -634,6 +664,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L664
   end
 
   def test_attr_reader
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: "4nil\nnil\n6", success_count: 2, min_calls: 2)
     begin;
       class A
@@ -700,6 +731,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L731
   end
 
   def test_clean_so
+    skip_on_mswin
     Dir.mktmpdir("jit_test_clean_so_") do |dir|
       code = "x = 0; 10.times {|i|x+=i}"
       eval_with_jit({"TMPDIR"=>dir}, code)
@@ -710,6 +742,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L742
   end
 
   def test_lambda_longjmp
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: '5', success_count: 1)
     begin;
       fib = lambda do |x|
@@ -721,6 +754,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L754
   end
 
   def test_stack_pointer_with_assignment
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: "nil\nnil\n", success_count: 1)
     begin;
       2.times do
@@ -731,6 +765,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L765
   end
 
   def test_program_pointer_with_regexpmatch
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: "aa", success_count: 1)
     begin;
       2.times do
@@ -741,6 +776,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L776
   end
 
   def test_pushed_values_with_opt_aset_with
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: "{}{}", success_count: 1)
     begin;
       2.times do
@@ -750,6 +786,7 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L786
   end
 
   def test_pushed_values_with_opt_aref_with
+    skip_on_mswin
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: "nil\nnil\n", success_count: 1)
     begin;
       2.times do
@@ -760,6 +797,13 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L797
 
   private
 
+  # Some tests are stil failing on VC++.
+  def skip_on_mswin
+    if RUBY_PLATFORM.match?(/mswin/)
+      skip 'This test does not succeed on mswin yet.'
+    end
+  end
+
   # The shortest way to test one proc
   def assert_compile_once(script, result_inspect:, insns: [])
     if script.match?(/\A\n.+\n\z/m)

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