runtime/lib/math_patch.dart - Issue 237313004: Improve double pow performance for few simple exponents (0.0, 1.0, 2.0, 3.0).

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Unified Diff: runtime/lib/math_patch.dart

Issue 237313004: Improve double pow performance for few simple exponents (0.0, 1.0, 2.0, 3.0). (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/

Patch Set: Created 6 years, 8 months ago

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Index: runtime/lib/math_patch.dart

===================================================================

--- runtime/lib/math_patch.dart (revision 35009)

+++ runtime/lib/math_patch.dart (working copy)

@@ -20,6 +20,10 @@

return 1.0; // ECMA-262 15.8.2.13

}

if (base == 1.0) return 1.0;

+ if (exponent == 1.0) return base;

+ if (exponent == 2.0) return base * base;

+ if (exponent == 3.0) return base * base * base;

if (base.isNaN || exponent.isNaN) {

return double.NAN;

}

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