[dev.power64] code review 160200044: build: merge default into dev.power64

src/pkg/runtime/msize.c

 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 // Malloc small size classes.
 //
 // See malloc.h for overview.
 //
 // The size classes are chosen so that rounding an allocation
 // request up to the next size class wastes at most 12.5% (1.125x).
@@ skipping 164 matching lines @@
         if(size < MaxSmallSize) {
                 if(size <= 1024-8)
                         return runtime·class_to_size[runtime·size_to_class8[(size+7)>>3]];
                 else
                         return runtime·class_to_size[runtime·size_to_class128[(size-1024+127) >> 7]];
         }
         if(size + PageSize < size)
                 return size;
         return ROUND(size, PageSize);
 }