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Issue #2308 & #1240 Follow-up - Replace JSOP_POS in ++/-- with JSOP_TONUMERIC. https://bugzilla.mozilla.org/show_bug.cgi?id=1519135

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Brian Smith 2023-09-17 12:39:03 -05:00 • committed by roytam1
commit 209d714434
28 changed files with 251 additions and 77 deletions
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42
js/src/jit/CodeGenerator.cpp
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@ -3415,6 +3415,48 @@ CodeGenerator::visitLoadUnboxedExpando(LLoadUnboxedExpando* lir)
masm.loadPtr(Address(obj, UnboxedPlainObject::offsetOfExpando()), result);
}
void
CodeGenerator::visitToNumeric(LToNumeric* lir)
{
ValueOperand operand = ToValue(lir, LToNumeric::Input);
ValueOperand output = ToOutValue(lir);
bool maybeInt32 = lir->mir()->mightBeType(MIRType::Int32);
bool maybeDouble = lir->mir()->mightBeType(MIRType::Double);
bool maybeNumber = maybeInt32 || maybeDouble;
bool maybeBigInt = lir->mir()->mightBeType(MIRType::BigInt);
int checks = int(maybeNumber) + int(maybeBigInt);
OutOfLineCode* ool = oolCallVM(ToNumericInfo, lir, ArgList(operand), StoreValueTo(output));
if (checks == 0) {
masm.jump(ool->entry());
} else {
Label done;
using Condition = Assembler::Condition;
constexpr Condition Equal = Assembler::Equal;
constexpr Condition NotEqual = Assembler::NotEqual;
if (maybeNumber) {
checks--;
Condition cond = checks ? Equal : NotEqual;
Label* target = checks ? &done : ool->entry();
masm.branchTestNumber(cond, operand, target);
}
if (maybeBigInt) {
checks--;
Condition cond = checks ? Equal : NotEqual;
Label* target = checks ? &done : ool->entry();
masm.branchTestBigInt(cond, operand, target);
}
MOZ_ASSERT(checks == 0);
masm.bind(&done);
masm.moveValue(operand, output);
}
masm.bind(ool->rejoin());
}
void
CodeGenerator::visitTypeBarrierV(LTypeBarrierV* lir)
{