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math: faster Gamma

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Having the compiler count the number of array elements speeds up Gamma from 63.7 to 56.6 ns/op.

R=rsc, golang-dev, r
CC=golang-dev
https://golang.org/cl/5362043
This commit is contained in:
Charles L. Dorian 2011-11-05 12:25:36 -07:00 committed by Rob Pike
parent c29cd8abb9
commit c171633780
1 changed files with 3 additions and 3 deletions
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6
src/pkg/math/gamma.go
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@ -63,7 +63,7 @@ package math
// Stephen L. Moshier // Stephen L. Moshier
// moshier@na-net.ornl.gov // moshier@na-net.ornl.gov
var _P = []float64{ var _P = [...]float64{
1.60119522476751861407e-04, 1.60119522476751861407e-04,
1.19135147006586384913e-03, 1.19135147006586384913e-03,
1.04213797561761569935e-02, 1.04213797561761569935e-02,
@ -72,7 +72,7 @@ var _P = []float64{
4.94214826801497100753e-01, 4.94214826801497100753e-01,
9.99999999999999996796e-01, 9.99999999999999996796e-01,
} }
var _Q = []float64{ var _Q = [...]float64{
-2.31581873324120129819e-05, -2.31581873324120129819e-05,
5.39605580493303397842e-04, 5.39605580493303397842e-04,
-4.45641913851797240494e-03, -4.45641913851797240494e-03,
@ -82,7 +82,7 @@ var _Q = []float64{
7.14304917030273074085e-02, 7.14304917030273074085e-02,
1.00000000000000000320e+00, 1.00000000000000000320e+00,
} }
var _S = []float64{ var _S = [...]float64{
7.87311395793093628397e-04, 7.87311395793093628397e-04,
-2.29549961613378126380e-04, -2.29549961613378126380e-04,
-2.68132617805781232825e-03, -2.68132617805781232825e-03,