js/src/jit-test/tests/sunspider/check-bitops-bits-in-byte.js@b8a032363ba2 (annotated)
js/src/jit-test/tests/sunspider/check-bitops-bits-in-byte.js
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | // Copyright (c) 2004 by Arthur Langereis (arthur_ext at domain xfinitegames, tld com) |
| michael@0 | 2 | |
| michael@0 | 3 | |
| michael@0 | 4 | // 1 op = 2 assigns, 16 compare/branches, 8 ANDs, (0-8) ADDs, 8 SHLs |
| michael@0 | 5 | // O(n) |
| michael@0 | 6 | function bitsinbyte(b) { |
| michael@0 | 7 | var m = 1, c = 0; |
| michael@0 | 8 | while(m<0x100) { |
| michael@0 | 9 | if(b & m) c++; |
| michael@0 | 10 | m <<= 1; |
| michael@0 | 11 | } |
| michael@0 | 12 | return c; |
| michael@0 | 13 | } |
| michael@0 | 14 | |
| michael@0 | 15 | var ret = 0; |
| michael@0 | 16 | function TimeFunc(func) { |
| michael@0 | 17 | var x, y, t; |
| michael@0 | 18 | for(var x=0; x<350; x++) |
| michael@0 | 19 | for(var y=0; y<256; y++) |
| michael@0 | 20 | ret += func(y); |
| michael@0 | 21 | } |
| michael@0 | 22 | |
| michael@0 | 23 | TimeFunc(bitsinbyte); |
| michael@0 | 24 | assertEq(ret, 358400) |
