AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity

Add fast check for NaN in NumberCompare slow case.

Browse Source 
Review URL: http://codereview.chromium.org/344010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3158 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
ager@chromium.org 2009-10-28 10:19:56 +00:00
parent a84ba0e15c
commit aea684ede4
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/runtime.js
View File

@ -128,7 +128,10 @@ function COMPARE(x, ncr) {
if (IS_STRING(a) && IS_STRING(b)) {
return %StringCompare(a, b);
} else {
return %NumberCompare(%ToNumber(a), %ToNumber(b), ncr);
var a_number = %ToNumber(a);
var b_number = %ToNumber(b);
if (NUMBER_IS_NAN(a_number) || NUMBER_IS_NAN(b_number)) return ncr;
return %NumberCompare(a_number, b_number, ncr);
}
}