* expand tabs.

cont.c

@@ -493,10 +493,10 @@ void
 rb_fiber_update_self(rb_fiber_t *fib)
 {
     if (fib->cont.self) {
-	fib->cont.self = rb_gc_location(fib->cont.self);
+        fib->cont.self = rb_gc_location(fib->cont.self);
     }
     else {
-	rb_execution_context_update(&fib->cont.saved_ec);
+        rb_execution_context_update(&fib->cont.saved_ec);
     }
 }
 
@@ -504,7 +504,7 @@ void
 rb_fiber_mark_self(const rb_fiber_t *fib)
 {
     if (fib->cont.self) {
-	rb_gc_mark_no_pin(fib->cont.self);
+        rb_gc_mark_no_pin(fib->cont.self);
     }
     else {
 	rb_execution_context_mark(&fib->cont.saved_ec);

proc.c

@@ -64,7 +64,7 @@ block_mark(const struct rb_block *block)
 	    RUBY_MARK_NO_PIN_UNLESS_NULL(captured->self);
 	    RUBY_MARK_NO_PIN_UNLESS_NULL((VALUE)captured->code.val);
 	    if (captured->ep && captured->ep[VM_ENV_DATA_INDEX_ENV] != Qundef /* cfunc_proc_t */) {
-		RUBY_MARK_NO_PIN_UNLESS_NULL(VM_ENV_ENVVAL(captured->ep));
+                RUBY_MARK_NO_PIN_UNLESS_NULL(VM_ENV_ENVVAL(captured->ep));
 	    }
 	}
 	break;
@@ -87,9 +87,9 @@ block_compact(struct rb_block *block)
 	    struct rb_captured_block *captured = &block->as.captured;
             captured->self = rb_gc_location(captured->self);
             captured->code.val = rb_gc_location(captured->code.val);
-	    if (captured->ep && captured->ep[VM_ENV_DATA_INDEX_ENV] != Qundef /* cfunc_proc_t */) {
+            if (captured->ep && captured->ep[VM_ENV_DATA_INDEX_ENV] != Qundef /* cfunc_proc_t */) {
                 UPDATE_REFERENCE(captured->ep[VM_ENV_DATA_INDEX_ENV]);
-	    }
+            }
 	}
 	break;
       case block_type_symbol:

vm.c

@@ -2480,24 +2480,24 @@ rb_execution_context_update(const rb_execution_context_t *ec)
 {
     /* update VM stack */
     if (ec->vm_stack) {
-	rb_control_frame_t *cfp = ec->cfp;
-	rb_control_frame_t *limit_cfp = (void *)(ec->vm_stack + ec->vm_stack_size);
+        rb_control_frame_t *cfp = ec->cfp;
+        rb_control_frame_t *limit_cfp = (void *)(ec->vm_stack + ec->vm_stack_size);
 
-	while (cfp != limit_cfp) {
-	    const VALUE *ep = cfp->ep;
+        while (cfp != limit_cfp) {
+            const VALUE *ep = cfp->ep;
             cfp->self = rb_gc_location(cfp->self);
             cfp->iseq = (rb_iseq_t *)rb_gc_location((VALUE)cfp->iseq);
             cfp->block_code = (void *)rb_gc_location((VALUE)cfp->block_code);
 
-	    if (!VM_ENV_LOCAL_P(ep)) {
-		VALUE *prev_ep = (VALUE *)VM_ENV_PREV_EP(ep);
-		if (VM_ENV_FLAGS(prev_ep, VM_ENV_FLAG_ESCAPED)) {
+            if (!VM_ENV_LOCAL_P(ep)) {
+                VALUE *prev_ep = (VALUE *)VM_ENV_PREV_EP(ep);
+                if (VM_ENV_FLAGS(prev_ep, VM_ENV_FLAG_ESCAPED)) {
                     prev_ep[VM_ENV_DATA_INDEX_ENV] = rb_gc_location(prev_ep[VM_ENV_DATA_INDEX_ENV]);
-		}
-	    }
+                }
+            }
 
-	    cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp);
-	}
+            cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp);
+        }
     }
 #if VM_CHECK_MODE > 0
     void rb_ec_verify(const rb_execution_context_t *ec); /* cont.c */
@@ -2525,14 +2525,14 @@ rb_execution_context_mark(const rb_execution_context_t *ec)
 	while (cfp != limit_cfp) {
 	    const VALUE *ep = cfp->ep;
 	    VM_ASSERT(!!VM_ENV_FLAGS(ep, VM_ENV_FLAG_ESCAPED) == vm_ep_in_heap_p_(ec, ep));
-	    rb_gc_mark_no_pin(cfp->self);
-	    rb_gc_mark_no_pin((VALUE)cfp->iseq);
-	    rb_gc_mark_no_pin((VALUE)cfp->block_code);
+            rb_gc_mark_no_pin(cfp->self);
+            rb_gc_mark_no_pin((VALUE)cfp->iseq);
+            rb_gc_mark_no_pin((VALUE)cfp->block_code);
 
 	    if (!VM_ENV_LOCAL_P(ep)) {
 		const VALUE *prev_ep = VM_ENV_PREV_EP(ep);
 		if (VM_ENV_FLAGS(prev_ep, VM_ENV_FLAG_ESCAPED)) {
-		    rb_gc_mark_no_pin(prev_ep[VM_ENV_DATA_INDEX_ENV]);
+                    rb_gc_mark_no_pin(prev_ep[VM_ENV_DATA_INDEX_ENV]);
 		}
 	    }
 
@@ -2659,7 +2659,7 @@ const rb_data_type_t ruby_threadptr_data_type = {
 	thread_mark,
 	thread_free,
 	thread_memsize,
-	thread_compact,
+        thread_compact,
     },
     0, 0, RUBY_TYPED_FREE_IMMEDIATELY
 };