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Bug 658968 - Don't clobber Registers::ReturnReg in emitStubCmpOp and jsop_relational_double. r=dvander

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This commit is contained in:
Jan de Mooij 2011-05-25 16:59:32 +02:00
parent ec235df94c
commit 34004d56cb
3 changed files with 16 additions and 3 deletions
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13
js/src/jit-test/tests/jaeger/bug658968.js Normal file
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@ -0,0 +1,13 @@
function f(){
var tarr = [];
var elemArray = [
{name: "C0", checked: true},
{name: "C1", checked: false},
];
for (var i = 0; i < elemArray.length; i++) {
var element = elemArray[i];
tarr[i] = (element.checked == true) ? 1 : 2;
}
assertEq(tarr.join(""), "12");
}
f();

5
js/src/methodjit/Compiler.cpp
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@ -2941,11 +2941,10 @@ mjit::Compiler::emitStubCmpOp(BoolStub stub, jsbytecode *target, JSOp fused)
{
prepareStubCall(Uses(2));
INLINE_STUBCALL(stub);
frame.pop();
frame.pop();
frame.popn(2);
frame.takeReg(Registers::ReturnReg);
if (!target) {
frame.takeReg(Registers::ReturnReg);
frame.pushTypedPayload(JSVAL_TYPE_BOOLEAN, Registers::ReturnReg);
return true;
}

1
js/src/methodjit/FastArithmetic.cpp
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@ -1298,6 +1298,7 @@ mjit::Compiler::jsop_relational_double(JSOp op, BoolStub stub, jsbytecode *targe
OOL_STUBCALL(stub);
frame.popn(2);
frame.takeReg(Registers::ReturnReg);
frame.syncAndForgetEverything();
Jump j = masm.branchDouble(dblCond, fpLeft, fpRight);