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Diffstat (limited to 'libgo/go/runtime/msize.go')
| -rw-r--r-- | libgo/go/runtime/msize.go | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/libgo/go/runtime/msize.go b/libgo/go/runtime/msize.go index 438c9875135..0accb83eb89 100644 --- a/libgo/go/runtime/msize.go +++ b/libgo/go/runtime/msize.go @@ -9,28 +9,6 @@ package runtime -// sizeToClass(0 <= n <= MaxSmallSize) returns the size class, -// 1 <= sizeclass < NumSizeClasses, for n. -// Size class 0 is reserved to mean "not small". -// -// The sizeToClass lookup is implemented using two arrays, -// one mapping sizes <= 1024 to their class and one mapping -// sizes >= 1024 and <= MaxSmallSize to their class. -// All objects are 8-aligned, so the first array is indexed by -// the size divided by 8 (rounded up). Objects >= 1024 bytes -// are 128-aligned, so the second array is indexed by the -// size divided by 128 (rounded up). The arrays are constants -// in sizeclass.go generated by mksizeclass.go. -func sizeToClass(size uint32) uint32 { - if size > _MaxSmallSize { - throw("invalid size") - } - if size > smallSizeMax-8 { - return uint32(size_to_class128[(size-smallSizeMax+largeSizeDiv-1)/largeSizeDiv]) - } - return uint32(size_to_class8[(size+smallSizeDiv-1)/smallSizeDiv]) -} - // Returns size of the memory block that mallocgc will allocate if you ask for the size. func roundupsize(size uintptr) uintptr { if size < _MaxSmallSize { |