rb_{thread,context,fiber}_struct: trivial packing

* vm_core.h (rb_thread_struct): reorder to pack
* cont.c (rb_context_struct, rb_fiber_struct): ditto
  On x86-64, these changes reduces:
  rb_thread_struct to 1000 bytes (from 1016)
  rb_context_struct to 1288 bytes (from 1312)
  rb_fiber_struct to 2272 bytes (from 2304)

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47186 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/vm_core.h b/vm_core.h
index 970efec837..ff8bf0ef20 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -599,6 +599,7 @@ typedef struct rb_thread_struct {
     enum rb_thread_status status;
     int to_kill;
     int priority;
+    int mark_stack_len;
 
     native_thread_data_t native_thread_data;
     void *blocking_region_buffer;
@@ -616,8 +617,8 @@ typedef struct rb_thread_struct {
 
     /* async errinfo queue */
     VALUE pending_interrupt_queue;
-    int pending_interrupt_queue_checked;
     VALUE pending_interrupt_mask_stack;
+    int pending_interrupt_queue_checked;
 
     rb_atomic_t interrupt_flag;
     unsigned long interrupt_mask;
@@ -665,7 +666,6 @@ typedef struct rb_thread_struct {
 #endif
 	jmp_buf regs;
     } machine;
-    int mark_stack_len;
 
     /* statistics data for profiler */
     VALUE stat_insn_usage;