Ryujinx/ARMeilleure/Instructions/InstEmitAlu.cs

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Add a new JIT compiler for CPU code (#693) * Start of the ARMeilleure project * Refactoring around the old IRAdapter, now renamed to PreAllocator * Optimize the LowestBitSet method * Add CLZ support and fix CLS implementation * Add missing Equals and GetHashCode overrides on some structs, misc small tweaks * Implement the ByteSwap IR instruction, and some refactoring on the assembler * Implement the DivideUI IR instruction and fix 64-bits IDIV * Correct constant operand type on CSINC * Move division instructions implementation to InstEmitDiv * Fix destination type for the ConditionalSelect IR instruction * Implement UMULH and SMULH, with new IR instructions * Fix some issues with shift instructions * Fix constant types for BFM instructions * Fix up new tests using the new V128 struct * Update tests * Move DIV tests to a separate file * Add support for calls, and some instructions that depends on them * Start adding support for SIMD & FP types, along with some of the related ARM instructions * Fix some typos and the divide instruction with FP operands * Fix wrong method call on Clz_V * Implement ARM FP & SIMD move instructions, Saddlv_V, and misc. fixes * Implement SIMD logical instructions and more misc. fixes * Fix PSRAD x86 instruction encoding, TRN, UABD and UABDL implementations * Implement float conversion instruction, merge in LDj3SNuD fixes, and some other misc. fixes * Implement SIMD shift instruction and fix Dup_V * Add SCVTF and UCVTF (vector, fixed-point) variants to the opcode table * Fix check with tolerance on tester * Implement FP & SIMD comparison instructions, and some fixes * Update FCVT (Scalar) encoding on the table to support the Half-float variants * Support passing V128 structs, some cleanup on the register allocator, merge LDj3SNuD fixes * Use old memory access methods, made a start on SIMD memory insts support, some fixes * Fix float constant passed to functions, save and restore non-volatile XMM registers, other fixes * Fix arguments count with struct return values, other fixes * More instructions * Misc. fixes and integrate LDj3SNuD fixes * Update tests * Add a faster linear scan allocator, unwinding support on windows, and other changes * Update Ryujinx.HLE * Update Ryujinx.Graphics * Fix V128 return pointer passing, RCX is clobbered * Update Ryujinx.Tests * Update ITimeZoneService * Stop using GetFunctionPointer as that can't be called from native code, misc. fixes and tweaks * Use generic GetFunctionPointerForDelegate method and other tweaks * Some refactoring on the code generator, assert on invalid operations and use a separate enum for intrinsics * Remove some unused code on the assembler * Fix REX.W prefix regression on float conversion instructions, add some sort of profiler * Add hardware capability detection * Fix regression on Sha1h and revert Fcm** changes * Add SSE2-only paths on vector extract and insert, some refactoring on the pre-allocator * Fix silly mistake introduced on last commit on CpuId * Generate inline stack probes when the stack allocation is too large * Initial support for the System-V ABI * Support multiple destination operands * Fix SSE2 VectorInsert8 path, and other fixes * Change placement of XMM callee save and restore code to match other compilers * Rename Dest to Destination and Inst to Instruction * Fix a regression related to calls and the V128 type * Add an extra space on comments to match code style * Some refactoring * Fix vector insert FP32 SSE2 path * Port over the ARM32 instructions * Avoid memory protection races on JIT Cache * Another fix on VectorInsert FP32 (thanks to LDj3SNuD * Float operands don't need to use the same register when VEX is supported * Add a new register allocator, higher quality code for hot code (tier up), and other tweaks * Some nits, small improvements on the pre allocator * CpuThreadState is gone * Allow changing CPU emulators with a config entry * Add runtime identifiers on the ARMeilleure project * Allow switching between CPUs through a config entry (pt. 2) * Change win10-x64 to win-x64 on projects * Update the Ryujinx project to use ARMeilleure * Ensure that the selected register is valid on the hybrid allocator * Allow exiting on returns to 0 (should fix test regression) * Remove register assignments for most used variables on the hybrid allocator * Do not use fixed registers as spill temp * Add missing namespace and remove unneeded using * Address PR feedback * Fix types, etc * Enable AssumeStrictAbiCompliance by default * Ensure that Spill and Fill don't load or store any more than necessary
2019-08-08 18:56:22 +00:00
using ARMeilleure.Decoders;
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.State;
using ARMeilleure.Translation;
using static ARMeilleure.Instructions.InstEmitAluHelper;
using static ARMeilleure.Instructions.InstEmitHelper;
using static ARMeilleure.IntermediateRepresentation.OperandHelper;
namespace ARMeilleure.Instructions
{
static partial class InstEmit
{
public static void Adc(ArmEmitterContext context) => EmitAdc(context, setFlags: false);
public static void Adcs(ArmEmitterContext context) => EmitAdc(context, setFlags: true);
private static void EmitAdc(ArmEmitterContext context, bool setFlags)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
Operand d = context.Add(n, m);
Operand carry = GetFlag(PState.CFlag);
if (context.CurrOp.RegisterSize == RegisterSize.Int64)
{
carry = context.ZeroExtend32(OperandType.I64, carry);
}
d = context.Add(d, carry);
if (setFlags)
{
EmitNZFlagsCheck(context, d);
EmitAdcsCCheck(context, n, d);
EmitAddsVCheck(context, n, m, d);
}
SetAluDOrZR(context, d);
}
public static void Add(ArmEmitterContext context)
{
SetAluD(context, context.Add(GetAluN(context), GetAluM(context)));
}
public static void Adds(ArmEmitterContext context)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
context.MarkComparison(n, m);
Operand d = context.Add(n, m);
EmitNZFlagsCheck(context, d);
EmitAddsCCheck(context, n, d);
EmitAddsVCheck(context, n, m, d);
SetAluDOrZR(context, d);
}
public static void And(ArmEmitterContext context)
{
SetAluD(context, context.BitwiseAnd(GetAluN(context), GetAluM(context)));
}
public static void Ands(ArmEmitterContext context)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
Operand d = context.BitwiseAnd(n, m);
EmitNZFlagsCheck(context, d);
EmitCVFlagsClear(context);
SetAluDOrZR(context, d);
}
public static void Asrv(ArmEmitterContext context)
{
SetAluDOrZR(context, context.ShiftRightSI(GetAluN(context), GetAluMShift(context)));
}
public static void Bic(ArmEmitterContext context) => EmitBic(context, setFlags: false);
public static void Bics(ArmEmitterContext context) => EmitBic(context, setFlags: true);
private static void EmitBic(ArmEmitterContext context, bool setFlags)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
Operand d = context.BitwiseAnd(n, context.BitwiseNot(m));
if (setFlags)
{
EmitNZFlagsCheck(context, d);
EmitCVFlagsClear(context);
}
SetAluD(context, d, setFlags);
}
public static void Cls(ArmEmitterContext context)
{
OpCodeAlu op = (OpCodeAlu)context.CurrOp;
Operand n = GetIntOrZR(context, op.Rn);
Operand nHigh = context.ShiftRightUI(n, Const(1));
bool is32Bits = op.RegisterSize == RegisterSize.Int32;
Operand mask = is32Bits ? Const(int.MaxValue) : Const(long.MaxValue);
Operand nLow = context.BitwiseAnd(n, mask);
Operand res = context.CountLeadingZeros(context.BitwiseExclusiveOr(nHigh, nLow));
res = context.Subtract(res, Const(res.Type, 1));
SetAluDOrZR(context, res);
}
public static void Clz(ArmEmitterContext context)
{
OpCodeAlu op = (OpCodeAlu)context.CurrOp;
Operand n = GetIntOrZR(context, op.Rn);
Operand d = context.CountLeadingZeros(n);
SetAluDOrZR(context, d);
}
public static void Eon(ArmEmitterContext context)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
Operand d = context.BitwiseExclusiveOr(n, context.BitwiseNot(m));
SetAluD(context, d);
}
public static void Eor(ArmEmitterContext context)
{
SetAluD(context, context.BitwiseExclusiveOr(GetAluN(context), GetAluM(context)));
}
public static void Extr(ArmEmitterContext context)
{
OpCodeAluRs op = (OpCodeAluRs)context.CurrOp;
Operand res = GetIntOrZR(context, op.Rm);
if (op.Shift != 0)
{
if (op.Rn == op.Rm)
{
res = context.RotateRight(res, Const(op.Shift));
}
else
{
res = context.ShiftRightUI(res, Const(op.Shift));
Operand n = GetIntOrZR(context, op.Rn);
int invShift = op.GetBitsCount() - op.Shift;
res = context.BitwiseOr(res, context.ShiftLeft(n, Const(invShift)));
}
}
SetAluDOrZR(context, res);
}
public static void Lslv(ArmEmitterContext context)
{
SetAluDOrZR(context, context.ShiftLeft(GetAluN(context), GetAluMShift(context)));
}
public static void Lsrv(ArmEmitterContext context)
{
SetAluDOrZR(context, context.ShiftRightUI(GetAluN(context), GetAluMShift(context)));
}
public static void Sbc(ArmEmitterContext context) => EmitSbc(context, setFlags: false);
public static void Sbcs(ArmEmitterContext context) => EmitSbc(context, setFlags: true);
private static void EmitSbc(ArmEmitterContext context, bool setFlags)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
Operand d = context.Subtract(n, m);
Operand borrow = context.BitwiseExclusiveOr(GetFlag(PState.CFlag), Const(1));
if (context.CurrOp.RegisterSize == RegisterSize.Int64)
{
borrow = context.ZeroExtend32(OperandType.I64, borrow);
}
d = context.Subtract(d, borrow);
if (setFlags)
{
EmitNZFlagsCheck(context, d);
EmitSbcsCCheck(context, n, m);
EmitSubsVCheck(context, n, m, d);
}
SetAluDOrZR(context, d);
}
public static void Sub(ArmEmitterContext context)
{
SetAluD(context, context.Subtract(GetAluN(context), GetAluM(context)));
}
public static void Subs(ArmEmitterContext context)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
context.MarkComparison(n, m);
Operand d = context.Subtract(n, m);
EmitNZFlagsCheck(context, d);
EmitSubsCCheck(context, n, m);
EmitSubsVCheck(context, n, m, d);
SetAluDOrZR(context, d);
}
public static void Orn(ArmEmitterContext context)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
Operand d = context.BitwiseOr(n, context.BitwiseNot(m));
SetAluD(context, d);
}
public static void Orr(ArmEmitterContext context)
{
SetAluD(context, context.BitwiseOr(GetAluN(context), GetAluM(context)));
}
public static void Rbit(ArmEmitterContext context)
{
OpCodeAlu op = (OpCodeAlu)context.CurrOp;
Operand n = GetIntOrZR(context, op.Rn);
Operand d;
if (op.RegisterSize == RegisterSize.Int32)
{
d = context.Call(new _U32_U32(SoftFallback.ReverseBits32), n);
}
else
{
d = context.Call(new _U64_U64(SoftFallback.ReverseBits64), n);
}
SetAluDOrZR(context, d);
}
public static void Rev16(ArmEmitterContext context)
{
OpCodeAlu op = (OpCodeAlu)context.CurrOp;
Operand n = GetIntOrZR(context, op.Rn);
Operand d;
if (op.RegisterSize == RegisterSize.Int32)
{
d = context.Call(new _U32_U32(SoftFallback.ReverseBytes16_32), n);
}
else
{
d = context.Call(new _U64_U64(SoftFallback.ReverseBytes16_64), n);
}
SetAluDOrZR(context, d);
}
public static void Rev32(ArmEmitterContext context)
{
OpCodeAlu op = (OpCodeAlu)context.CurrOp;
Operand n = GetIntOrZR(context, op.Rn);
if (op.RegisterSize == RegisterSize.Int32)
{
SetAluDOrZR(context, context.ByteSwap(n));
}
else
{
Operand d = context.Call(new _U64_U64(SoftFallback.ReverseBytes32_64), n);
SetAluDOrZR(context, d);
}
}
public static void Rev64(ArmEmitterContext context)
{
OpCodeAlu op = (OpCodeAlu)context.CurrOp;
SetAluDOrZR(context, context.ByteSwap(GetIntOrZR(context, op.Rn)));
}
public static void Rorv(ArmEmitterContext context)
{
SetAluDOrZR(context, context.RotateRight(GetAluN(context), GetAluMShift(context)));
}
private static Operand GetAluMShift(ArmEmitterContext context)
{
IOpCodeAluRs op = (IOpCodeAluRs)context.CurrOp;
Operand m = GetIntOrZR(context, op.Rm);
if (op.RegisterSize == RegisterSize.Int64)
{
m = context.ConvertI64ToI32(m);
}
return context.BitwiseAnd(m, Const(context.CurrOp.GetBitsCount() - 1));
}
private static void EmitCVFlagsClear(ArmEmitterContext context)
{
SetFlag(context, PState.CFlag, Const(0));
SetFlag(context, PState.VFlag, Const(0));
}
public static void SetAluD(ArmEmitterContext context, Operand d)
{
SetAluD(context, d, x31IsZR: false);
}
public static void SetAluDOrZR(ArmEmitterContext context, Operand d)
{
SetAluD(context, d, x31IsZR: true);
}
public static void SetAluD(ArmEmitterContext context, Operand d, bool x31IsZR)
{
IOpCodeAlu op = (IOpCodeAlu)context.CurrOp;
if ((x31IsZR || op is IOpCodeAluRs) && op.Rd == RegisterConsts.ZeroIndex)
{
return;
}
SetIntOrSP(context, op.Rd, d);
}
}
}