js/src/jit-test/tests/sunspider/check-bitops-bits-in-byte.js@6474c204b198 (annotated)
js/src/jit-test/tests/sunspider/check-bitops-bits-in-byte.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| 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) |
