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-rw-r--r--src/qml/jit/qv4isel_masm.cpp139
1 files changed, 1 insertions, 138 deletions
diff --git a/src/qml/jit/qv4isel_masm.cpp b/src/qml/jit/qv4isel_masm.cpp
index 7a051067f3..03881e6776 100644
--- a/src/qml/jit/qv4isel_masm.cpp
+++ b/src/qml/jit/qv4isel_masm.cpp
@@ -1325,144 +1325,7 @@ void InstructionSelection<JITAssembler>::visitCJump(IR::CJump *s)
template <typename JITAssembler>
void InstructionSelection<JITAssembler>::visitRet(IR::Ret *s)
{
- if (!s) {
- // this only happens if the method doesn't have a return statement and can
- // only exit through an exception
- } else if (IR::Temp *t = s->expr->asTemp()) {
-#if CPU(X86) || CPU(ARM) || CPU(MIPS)
-
-# if CPU(X86)
- RegisterID lowReg = JSC::X86Registers::eax;
- RegisterID highReg = JSC::X86Registers::edx;
-# elif CPU(MIPS)
- RegisterID lowReg = JSC::MIPSRegisters::v0;
- RegisterID highReg = JSC::MIPSRegisters::v1;
-# else // CPU(ARM)
- RegisterID lowReg = JSC::ARMRegisters::r0;
- RegisterID highReg = JSC::ARMRegisters::r1;
-# endif
-
- if (t->kind == IR::Temp::PhysicalRegister) {
- switch (t->type) {
- case IR::DoubleType:
- _as->moveDoubleToInts((FPRegisterID) t->index, lowReg, highReg);
- break;
- case IR::UInt32Type: {
- RegisterID srcReg = (RegisterID) t->index;
- Jump intRange = _as->branch32(JITAssembler::GreaterThanOrEqual, srcReg, TrustedImm32(0));
- _as->convertUInt32ToDouble(srcReg, JITTargetPlatform::FPGpr0, JITTargetPlatform::ReturnValueRegister);
- _as->moveDoubleToInts(JITTargetPlatform::FPGpr0, lowReg, highReg);
- Jump done = _as->jump();
- intRange.link(_as);
- _as->move(srcReg, lowReg);
- _as->move(TrustedImm32(QV4::Value::Integer_Type_Internal), highReg);
- done.link(_as);
- } break;
- case IR::SInt32Type:
- _as->move((RegisterID) t->index, lowReg);
- _as->move(TrustedImm32(QV4::Value::Integer_Type_Internal), highReg);
- break;
- case IR::BoolType:
- _as->move((RegisterID) t->index, lowReg);
- _as->move(TrustedImm32(QV4::Value::Boolean_Type_Internal), highReg);
- break;
- default:
- Q_UNREACHABLE();
- }
- } else {
- Pointer addr = _as->loadAddress(JITTargetPlatform::ScratchRegister, t);
- _as->load32(addr, lowReg);
- addr.offset += 4;
- _as->load32(addr, highReg);
- }
-#else
- if (t->kind == IR::Temp::PhysicalRegister) {
- if (t->type == IR::DoubleType) {
- _as->moveDoubleTo64((FPRegisterID) t->index,
- JITTargetPlatform::ReturnValueRegister);
- _as->move(TrustedImm64(QV4::Value::NaNEncodeMask),
- JITTargetPlatform::ScratchRegister);
- _as->xor64(JITTargetPlatform::ScratchRegister, JITTargetPlatform::ReturnValueRegister);
- } else if (t->type == IR::UInt32Type) {
- RegisterID srcReg = (RegisterID) t->index;
- Jump intRange = _as->branch32(RelationalCondition::GreaterThanOrEqual, srcReg, TrustedImm32(0));
- _as->convertUInt32ToDouble(srcReg, JITTargetPlatform::FPGpr0, JITTargetPlatform::ReturnValueRegister);
- _as->moveDoubleTo64(JITTargetPlatform::FPGpr0, JITTargetPlatform::ReturnValueRegister);
- _as->move(TrustedImm64(QV4::Value::NaNEncodeMask), JITTargetPlatform::ScratchRegister);
- _as->xor64(JITTargetPlatform::ScratchRegister, JITTargetPlatform::ReturnValueRegister);
- Jump done = _as->jump();
- intRange.link(_as);
- _as->zeroExtend32ToPtr(srcReg, JITTargetPlatform::ReturnValueRegister);
- quint64 tag = QV4::Value::Integer_Type_Internal;
- _as->or64(TrustedImm64(tag << 32),
- JITTargetPlatform::ReturnValueRegister);
- done.link(_as);
- } else {
- _as->zeroExtend32ToPtr((RegisterID) t->index, JITTargetPlatform::ReturnValueRegister);
- quint64 tag;
- switch (t->type) {
- case IR::SInt32Type:
- tag = QV4::Value::Integer_Type_Internal;
- break;
- case IR::BoolType:
- tag = QV4::Value::Boolean_Type_Internal;
- break;
- default:
- tag = 31337; // bogus value
- Q_UNREACHABLE();
- }
- _as->or64(TrustedImm64(tag << 32),
- JITTargetPlatform::ReturnValueRegister);
- }
- } else {
- _as->copyValue(JITTargetPlatform::ReturnValueRegister, t);
- }
-#endif
- } else if (IR::Const *c = s->expr->asConst()) {
- QV4::Primitive retVal = convertToValue(c);
-#if CPU(X86)
- _as->move(TrustedImm32(retVal.int_32()), JSC::X86Registers::eax);
- _as->move(TrustedImm32(retVal.tag()), JSC::X86Registers::edx);
-#elif CPU(ARM)
- _as->move(TrustedImm32(retVal.int_32()), JSC::ARMRegisters::r0);
- _as->move(TrustedImm32(retVal.tag()), JSC::ARMRegisters::r1);
-#elif CPU(MIPS)
- _as->move(TrustedImm32(retVal.int_32()), JSC::MIPSRegisters::v0);
- _as->move(TrustedImm32(retVal.tag()), JSC::MIPSRegisters::v1);
-#else
- _as->move(TrustedImm64(retVal.rawValue()), JITTargetPlatform::ReturnValueRegister);
-#endif
- } else {
- Q_UNREACHABLE();
- Q_UNUSED(s);
- }
-
- Label leaveStackFrame = _as->label();
-
- const int locals = _as->stackLayout().calculateJSStackFrameSize();
- _as->subPtr(TrustedImm32(sizeof(QV4::Value)*locals), JITTargetPlatform::LocalsRegister);
- _as->loadPtr(Address(JITTargetPlatform::EngineRegister, qOffsetOf(QV4::ExecutionEngine, current)), JITTargetPlatform::ScratchRegister);
- _as->loadPtr(Address(JITTargetPlatform::ScratchRegister, qOffsetOf(ExecutionContext::Data, engine)), JITTargetPlatform::ScratchRegister);
- _as->storePtr(JITTargetPlatform::LocalsRegister, Address(JITTargetPlatform::ScratchRegister, qOffsetOf(ExecutionEngine, jsStackTop)));
-
- _as->leaveStandardStackFrame(regularRegistersToSave, fpRegistersToSave);
- _as->ret();
-
- _as->exceptionReturnLabel = _as->label();
- QV4::Primitive retVal = Primitive::undefinedValue();
-#if CPU(X86)
- _as->move(TrustedImm32(retVal.int_32()), JSC::X86Registers::eax);
- _as->move(TrustedImm32(retVal.tag()), JSC::X86Registers::edx);
-#elif CPU(ARM)
- _as->move(TrustedImm32(retVal.int_32()), JSC::ARMRegisters::r0);
- _as->move(TrustedImm32(retVal.tag()), JSC::ARMRegisters::r1);
-#elif CPU(MIPS)
- _as->move(TrustedImm32(retVal.int_32()), JSC::MIPSRegisters::v0);
- _as->move(TrustedImm32(retVal.tag()), JSC::MIPSRegisters::v1);
-#else
- _as->move(TrustedImm64(retVal.rawValue()), JITTargetPlatform::ReturnValueRegister);
-#endif
- _as->jump(leaveStackFrame);
+ _as->returnFromFunction(s, regularRegistersToSave, fpRegistersToSave);
}
template <typename JITAssembler>
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-10 14:48:46 +0000