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Issue #1240 - Part 10 - Implement minimal Ion support for BigInt. https://bugzilla.mozilla.org/show_bug.cgi?id=1507484 Implement IC support for BigInt. https://bugzilla.mozilla.org/show_bug.cgi?id=1522431

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This commit is contained in:
Brian Smith 2023-07-21 20:25:52 -05:00 • committed by roytam1
commit 2d5ee3c457
39 changed files with 448 additions and 43 deletions
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38
js/src/jit/MIR.cpp
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@ -935,6 +935,9 @@ MConstant::MConstant(const js::Value& vp, CompilerConstraintList* constraints)
case MIRType::Symbol:
payload_.sym = vp.toSymbol();
break;
case MIRType::BigInt:
payload_.bi = vp.toBigInt();
break;
case MIRType::Object:
payload_.obj = &vp.toObject();
// Create a singleton type set for the object. This isn't necessary for
@ -1014,7 +1017,12 @@ MConstant::assertInitializedPayload() const
case MIRType::String:
case MIRType::Object:
case MIRType::Symbol:
case MIRType::BigInt:
#if MOZ_LITTLE_ENDIAN
MOZ_ASSERT_IF(JS_BITS_PER_WORD == 32, (payload_.asBits >> 32) == 0);
#else
MOZ_ASSERT_IF(JS_BITS_PER_WORD == 32, (payload_.asBits << 32) == 0);
#endif
break;
default:
MOZ_ASSERT(IsNullOrUndefined(type()) || IsMagicType(type()));
@ -1103,6 +1111,9 @@ MConstant::printOpcode(GenericPrinter& out) const
case MIRType::Symbol:
out.printf("symbol at %p", (void*)toSymbol());
break;
case MIRType::BigInt:
out.printf("BigInt at %p", (void*)toBigInt());
break;
case MIRType::String:
out.printf("string %p", (void*)toString());
break;
@ -1164,6 +1175,8 @@ MConstant::toJSValue() const
return StringValue(toString());
case MIRType::Symbol:
return SymbolValue(toSymbol());
case MIRType::BigInt:
return BigIntValue(toBigInt());
case MIRType::Object:
return ObjectValue(toObject());
case MIRType::MagicOptimizedArguments:
@ -1207,6 +1220,9 @@ MConstant::valueToBoolean(bool* res) const
case MIRType::Symbol:
*res = true;
return true;
case MIRType::BigInt:
*res = !toBigInt()->isZero();
return true;
case MIRType::String:
*res = toString()->length() != 0;
return true;
@ -2199,6 +2215,7 @@ MUnbox::printOpcode(GenericPrinter& out) const
case MIRType::Boolean: out.printf("to Boolean"); break;
case MIRType::String: out.printf("to String"); break;
case MIRType::Symbol: out.printf("to Symbol"); break;
case MIRType::BigInt: out.printf("to BigInt"); break;
case MIRType::Object: out.printf("to Object"); break;
default: break;
}
@ -2591,6 +2608,7 @@ jit::TypeSetIncludes(TypeSet* types, MIRType input, TypeSet* inputTypes)
case MIRType::Float32:
case MIRType::String:
case MIRType::Symbol:
case MIRType::BigInt:
case MIRType::MagicOptimizedArguments:
return types->hasType(TypeSet::PrimitiveType(ValueTypeFromMIRType(input)));
@ -2846,7 +2864,8 @@ void
MBinaryBitwiseInstruction::infer(BaselineInspector*, jsbytecode*)
{
if (getOperand(0)->mightBeType(MIRType::Object) || getOperand(0)->mightBeType(MIRType::Symbol) ||
getOperand(1)->mightBeType(MIRType::Object) || getOperand(1)->mightBeType(MIRType::Symbol))
getOperand(1)->mightBeType(MIRType::Object) || getOperand(1)->mightBeType(MIRType::Symbol) ||
getOperand(1)->mightBeType(MIRType::BigInt))
{
specialization_ = MIRType::None;
setResultType(MIRType::Value);
@ -2872,7 +2891,8 @@ void
MShiftInstruction::infer(BaselineInspector*, jsbytecode*)
{
if (getOperand(0)->mightBeType(MIRType::Object) || getOperand(1)->mightBeType(MIRType::Object) ||
getOperand(0)->mightBeType(MIRType::Symbol) || getOperand(1)->mightBeType(MIRType::Symbol))
getOperand(0)->mightBeType(MIRType::Symbol) || getOperand(1)->mightBeType(MIRType::Symbol) ||
getOperand(0)->mightBeType(MIRType::BigInt) || getOperand(1)->mightBeType(MIRType::BigInt))
{
specialization_ = MIRType::None;
setResultType(MIRType::Value);
@ -2886,7 +2906,8 @@ void
MUrsh::infer(BaselineInspector* inspector, jsbytecode* pc)
{
if (getOperand(0)->mightBeType(MIRType::Object) || getOperand(1)->mightBeType(MIRType::Object) ||
getOperand(0)->mightBeType(MIRType::Symbol) || getOperand(1)->mightBeType(MIRType::Symbol))
getOperand(0)->mightBeType(MIRType::Symbol) || getOperand(1)->mightBeType(MIRType::Symbol) ||
getOperand(0)->mightBeType(MIRType::BigInt) || getOperand(1)->mightBeType(MIRType::BigInt))
{
specialization_ = MIRType::None;
setResultType(MIRType::Value);
@ -3880,6 +3901,9 @@ MTypeOf::foldsTo(TempAllocator& alloc)
case MIRType::Symbol:
type = JSTYPE_SYMBOL;
break;
case MIRType::BigInt:
type = JSTYPE_BIGINT;
break;
case MIRType::Null:
type = JSTYPE_OBJECT;
break;
@ -4459,6 +4483,12 @@ MCompare::tryFoldTypeOf(bool* result)
*result = (jsop() == JSOP_STRICTNE || jsop() == JSOP_NE);
return true;
}
}
else if (constant->toString() == TypeName(JSTYPE_BIGINT, names)) {
if (!typeOf->input()->mightBeType(MIRType::BigInt)) {
*result = (jsop() == JSOP_STRICTNE || jsop() == JSOP_NE);
return true;
}
} else if (constant->toString() == TypeName(JSTYPE_OBJECT, names)) {
if (!typeOf->input()->mightBeType(MIRType::Object) &&
!typeOf->input()->mightBeType(MIRType::Null))
@ -5612,6 +5642,8 @@ MConstant::appendRoots(MRootList& roots) const
return roots.append(toString());
case MIRType::Symbol:
return roots.append(toSymbol());
case MIRType::BigInt:
return roots.append(toBigInt());
case MIRType::Object:
return roots.append(&toObject());
case MIRType::Undefined: