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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/jit-test/tests/sunspider/check-math-spectral-norm.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/sunspider/check-math-spectral-norm.js')
-rw-r--r-- | js/src/jit-test/tests/sunspider/check-math-spectral-norm.js | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/sunspider/check-math-spectral-norm.js b/js/src/jit-test/tests/sunspider/check-math-spectral-norm.js new file mode 100644 index 0000000000..824863c6a5 --- /dev/null +++ b/js/src/jit-test/tests/sunspider/check-math-spectral-norm.js @@ -0,0 +1,53 @@ +// The Great Computer Language Shootout +// http://shootout.alioth.debian.org/ +// +// contributed by Ian Osgood + +function A(i,j) { + return 1/((i+j)*(i+j+1)/2+i+1); +} + +function Au(u,v) { + for (var i=0; i<u.length; ++i) { + var t = 0; + for (var j=0; j<u.length; ++j) + t += A(i,j) * u[j]; + v[i] = t; + } +} + +function Atu(u,v) { + for (var i=0; i<u.length; ++i) { + var t = 0; + for (var j=0; j<u.length; ++j) + t += A(j,i) * u[j]; + v[i] = t; + } +} + +function AtAu(u,v,w) { + Au(u,w); + Atu(w,v); +} + +function spectralnorm(n) { + var i, u=[], v=[], w=[], vv=0, vBv=0; + for (i=0; i<n; ++i) { + u[i] = 1; v[i] = w[i] = 0; + } + for (i=0; i<10; ++i) { + AtAu(u,v,w); + AtAu(v,u,w); + } + for (i=0; i<n; ++i) { + vBv += u[i]*v[i]; + vv += v[i]*v[i]; + } + return Math.sqrt(vBv/vv); +} + +var actual = ''; +for (var i = 6; i <= 48; i *= 2) { + actual += spectralnorm(i) + ','; +} +assertEq(actual, "1.2657786149754053,1.2727355112619148,1.273989979775574,1.274190125290389,"); |