Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-10-16 23:05:42 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Bug 789300 - Properly detect NaN truthiness. r=dvander

Browse Source
This commit is contained in:
Sean Stangl 2012-09-18 14:18:38 -07:00
parent b6f4fdb364
commit 142a8f21e6
2 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
js/src/ion/Lowering.cpp
View File

@ -330,8 +330,8 @@ LIRGenerator::visitTest(MTest *test)
// Constant Double operand.
if (opd->type() == MIRType_Double && opd->isConstant()) {
double dbl = opd->toConstant()->value().toDouble();
return add(new LGoto(dbl ? ifTrue : ifFalse));
bool result = ToBoolean(opd->toConstant()->value());
return add(new LGoto(result ? ifTrue : ifFalse));
}
// Constant Int32 operand.

4
js/src/jit-test/tests/ion/bug789300.js Normal file
View File

@ -0,0 +1,4 @@
function f() {
return (NaN ? 4 : 5);
}
assertEq(f(), 5);