js/src/devtools/jint/sunspider/math-spectral-norm.js@129ffea94266 (annotated)
js/src/devtools/jint/sunspider/math-spectral-norm.js
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
| michael@0 | 1 | // The Great Computer Language Shootout |
| michael@0 | 2 | // http://shootout.alioth.debian.org/ |
| michael@0 | 3 | // |
| michael@0 | 4 | // contributed by Ian Osgood |
| michael@0 | 5 | |
| michael@0 | 6 | function A(i,j) { |
| michael@0 | 7 | return 1/((i+j)*(i+j+1)/2+i+1); |
| michael@0 | 8 | } |
| michael@0 | 9 | |
| michael@0 | 10 | function Au(u,v) { |
| michael@0 | 11 | /* BEGIN LOOP */ |
| michael@0 | 12 | for (var i=0; i<u.length; ++i) { |
| michael@0 | 13 | var t = 0; |
| michael@0 | 14 | /* BEGIN LOOP */ |
| michael@0 | 15 | for (var j=0; j<u.length; ++j) |
| michael@0 | 16 | t += A(i,j) * u[j]; |
| michael@0 | 17 | /* END LOOP */ |
| michael@0 | 18 | v[i] = t; |
| michael@0 | 19 | } |
| michael@0 | 20 | /* END LOOP */ |
| michael@0 | 21 | } |
| michael@0 | 22 | |
| michael@0 | 23 | function Atu(u,v) { |
| michael@0 | 24 | /* BEGIN LOOP */ |
| michael@0 | 25 | for (var i=0; i<u.length; ++i) { |
| michael@0 | 26 | var t = 0; |
| michael@0 | 27 | /* BEGIN LOOP */ |
| michael@0 | 28 | for (var j=0; j<u.length; ++j) |
| michael@0 | 29 | t += A(j,i) * u[j]; |
| michael@0 | 30 | /* END LOOP */ |
| michael@0 | 31 | v[i] = t; |
| michael@0 | 32 | } |
| michael@0 | 33 | /* END LOOP */ |
| michael@0 | 34 | } |
| michael@0 | 35 | |
| michael@0 | 36 | function AtAu(u,v,w) { |
| michael@0 | 37 | Au(u,w); |
| michael@0 | 38 | Atu(w,v); |
| michael@0 | 39 | } |
| michael@0 | 40 | |
| michael@0 | 41 | function spectralnorm(n) { |
| michael@0 | 42 | var i, u=[], v=[], w=[], vv=0, vBv=0; |
| michael@0 | 43 | /* BEGIN LOOP */ |
| michael@0 | 44 | for (i=0; i<n; ++i) { |
| michael@0 | 45 | u[i] = 1; v[i] = w[i] = 0; |
| michael@0 | 46 | } |
| michael@0 | 47 | /* END LOOP */ |
| michael@0 | 48 | /* BEGIN LOOP */ |
| michael@0 | 49 | for (i=0; i<10; ++i) { |
| michael@0 | 50 | AtAu(u,v,w); |
| michael@0 | 51 | AtAu(v,u,w); |
| michael@0 | 52 | } |
| michael@0 | 53 | /* END LOOP */ |
| michael@0 | 54 | /* BEGIN LOOP */ |
| michael@0 | 55 | for (i=0; i<n; ++i) { |
| michael@0 | 56 | vBv += u[i]*v[i]; |
| michael@0 | 57 | vv += v[i]*v[i]; |
| michael@0 | 58 | } |
| michael@0 | 59 | /* END LOOP */ |
| michael@0 | 60 | return Math.sqrt(vBv/vv); |
| michael@0 | 61 | } |
| michael@0 | 62 | |
| michael@0 | 63 | /* BEGIN LOOP */ |
| michael@0 | 64 | for (var i = 6; i <= 48; i *= 2) { |
| michael@0 | 65 | spectralnorm(i); |
| michael@0 | 66 | } |
| michael@0 | 67 | /* END LOOP */ |
