* vm_core.h (struct rb_iseq_struct): stack_max is changed to int

because all calculations related to stack_max in compile.c
  (iseq_set_sequence) and vm_insnhelper.c (vm_push_frame) are
  conducted by using int. This partly reverts r23945.
* vm_insnhelper.c (vm_push_frame): ditto. This reverts r42401.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46839 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,11 @@
+Wed Jul 16 20:21:49 2014  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* vm_core.h (struct rb_iseq_struct): stack_max is changed to int
+	  because all calculations related to stack_max in compile.c
+	  (iseq_set_sequence) and vm_insnhelper.c (vm_push_frame) are
+	  conducted by using int. This partly reverts r23945.
+	* vm_insnhelper.c (vm_push_frame): ditto. This reverts r42401.
+
 Wed Jul 16 19:55:32 2014  Naohisa Goto  <ngotogenome@gmail.com>
 
 	* vm_core.h (struct rb_iseq_struct): temporal workaround of [Bug 10037].

vm_core.h

@@ -208,7 +208,7 @@ struct rb_iseq_struct {
 #if defined(WORDS_BIGENDIAN) && (SIZEOF_VALUE > SIZEOF_INT)
     char dummy[SIZEOF_VALUE - SIZEOF_INT]; /* [Bug #10037][ruby-core:63721] */
 #endif
-    uint32_t stack_max; /* for stack overflow check */
+    int stack_max; /* for stack overflow check */
 
     rb_iseq_location_t location;
 

vm_insnhelper.c

@@ -49,13 +49,13 @@ vm_push_frame(rb_thread_t *th,
 	      VALUE *sp,
 	      int local_size,
 	      const rb_method_entry_t *me,
-	      size_t stack_max)
+	      int stack_max)
 {
     rb_control_frame_t *const cfp = th->cfp - 1;
     int i;
 
     /* check stack overflow */
-    CHECK_VM_STACK_OVERFLOW0(cfp, sp, local_size + (int)stack_max);
+    CHECK_VM_STACK_OVERFLOW0(cfp, sp, local_size + stack_max);
 
     th->cfp = cfp;