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Improve parseInt.

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Review URL: http://codereview.chromium.org/6546055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6888 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
sandholm@chromium.org 2011-02-22 11:21:15 +00:00
parent 3c02d036a8
commit 9d4b0fa932
1 changed files with 2 additions and 2 deletions
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4
src/v8natives.js
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@ -92,7 +92,7 @@ function GlobalIsFinite(number) {
// ECMA-262 - 15.1.2.2
function GlobalParseInt(string, radix) {
if (IS_UNDEFINED(radix)) {
if (IS_UNDEFINED(radix) || radix === 10 || radix === 0) {
// Some people use parseInt instead of Math.floor. This
// optimization makes parseInt on a Smi 12 times faster (60ns
// vs 800ns). The following optimization makes parseInt on a
@ -105,7 +105,7 @@ function GlobalParseInt(string, radix) {
// Truncate number.
return string | 0;
}
radix = 0;
if (IS_UNDEFINED(radix)) radix = 0;
} else {
radix = TO_INT32(radix);
if (!(radix == 0 || (2 <= radix && radix <= 36)))