5e724cf24e
* Delete DelegateTypes.cs * Delete DelegateCache.cs * Add files via upload * Update Horizon.cs * Update Program.cs * Update MainWindow.cs * Update Aot.cs * Update RelocEntry.cs * Update Translator.cs * Update MemoryManager.cs * Update InstEmitMemoryHelper.cs * Update Delegates.cs * Nit. * Nit. * Nit. * 10 fewer MSIL bytes for us * Add comment. Nits. * Update Translator.cs * Update Aot.cs * Nits. * Opt.. * Opt.. * Opt.. * Opt.. * Allow to change compression level. * Update MemoryManager.cs * Update Translator.cs * Manage corner cases during the save phase. Nits. * Update Aot.cs * Translator response tweak for Aot disabled. Nit. * Nit. * Nits. * Create DelegateHelpers.cs * Update Delegates.cs * Nit. * Nit. * Nits. * Fix due to #784. * Fixes due to #757 & #841. * Fix due to #846. * Fix due to #847. * Use MethodInfo for managed method calls. Use IR methods instead of managed methods about Max/Min (S/U). Follow-ups & Nits. * Add missing exception messages. Reintroduce slow path for Fmov_Vi. Implement slow path for Fmov_Si. * Switch to the new folder structure. Nits. * Impl. index-based relocation information. Impl. cache file version field. * Nit. * Address gdkchan comments. Mainly: - fixed cache file corruption issue on exit; - exposed a way to disable AOT on the GUI. * Address AcK77 comment. * Address Thealexbarney, jduncanator & emmauss comments. Header magic, CpuId (FI) & Aot -> Ptc. * Adaptation to the new application reloading system. Improvements to the call system of managed methods. Follow-ups. Nits. * Get the same boot times as on master when PTC is disabled. * Profiled Aot. * A32 support (#897). * #975 support (1 of 2). * #975 support (2 of 2). * Rebase fix & nits. * Some fixes and nits (still one bug left). * One fix & nits. * Tests fix (by gdk) & nits. * Support translations not only in high quality and rejit. Nits. * Added possibility to skip translations and continue execution, using `ESC` key. * Update SettingsWindow.cs * Update GLRenderer.cs * Update Ptc.cs * Disabled Profiled PTC by default as requested in the past by gdk. * Fix rejit bug. Increased number of parallel translations. Add stack unwinding stuffs support (1 of 2). Nits. * Add stack unwinding stuffs support (2 of 2). Tuned number of parallel translations. * Restored the ability to assemble jumps with 8-bit offset when Profiled PTC is disabled or during profiling. Modifications due to rebase. Nits. * Limited profiling of the functions to be translated to the addresses belonging to the range of static objects only. * Nits. * Nits. * Update Delegates.cs * Nit. * Update InstEmitSimdArithmetic.cs * Address riperiperi comments. * Fixed the issue of unjustifiably longer boot times at the second boot than at the first boot, measured at the same time or reference point and with the same number of translated functions. * Implemented a simple redundant load/save mechanism. Halved the value of Decoder.MaxInstsPerFunction more appropriate for the current performance of the Translator. Replaced by Logger.PrintError to Logger.PrintDebug in TexturePool.cs about the supposed invalid texture format to avoid the spawn of the log. Nits. * Nit. Improved Logger.PrintError in TexturePool.cs to avoid log spawn. Added missing code for FZ handling (in output) for fp max/min instructions (slow paths). * Add configuration migration for PTC Co-authored-by: Thog <me@thog.eu>
1726 lines
No EOL
63 KiB
C#
1726 lines
No EOL
63 KiB
C#
using ARMeilleure.CodeGen.Optimizations;
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using ARMeilleure.CodeGen.RegisterAllocators;
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using ARMeilleure.CodeGen.Unwinding;
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using ARMeilleure.Common;
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using ARMeilleure.Diagnostics;
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using ARMeilleure.IntermediateRepresentation;
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using ARMeilleure.Translation;
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using ARMeilleure.Translation.PTC;
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Numerics;
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using static ARMeilleure.IntermediateRepresentation.OperandHelper;
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namespace ARMeilleure.CodeGen.X86
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{
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static class CodeGenerator
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{
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private const int PageSize = 0x1000;
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private const int StackGuardSize = 0x2000;
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private static Action<CodeGenContext, Operation>[] _instTable;
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static CodeGenerator()
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{
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_instTable = new Action<CodeGenContext, Operation>[EnumUtils.GetCount(typeof(Instruction))];
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Add(Instruction.Add, GenerateAdd);
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Add(Instruction.BitwiseAnd, GenerateBitwiseAnd);
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Add(Instruction.BitwiseExclusiveOr, GenerateBitwiseExclusiveOr);
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Add(Instruction.BitwiseNot, GenerateBitwiseNot);
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Add(Instruction.BitwiseOr, GenerateBitwiseOr);
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Add(Instruction.Branch, GenerateBranch);
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Add(Instruction.BranchIfFalse, GenerateBranchIfFalse);
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Add(Instruction.BranchIfTrue, GenerateBranchIfTrue);
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Add(Instruction.ByteSwap, GenerateByteSwap);
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Add(Instruction.Call, GenerateCall);
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Add(Instruction.Clobber, GenerateClobber);
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Add(Instruction.CompareAndSwap, GenerateCompareAndSwap);
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Add(Instruction.CompareEqual, GenerateCompareEqual);
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Add(Instruction.CompareGreater, GenerateCompareGreater);
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Add(Instruction.CompareGreaterOrEqual, GenerateCompareGreaterOrEqual);
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Add(Instruction.CompareGreaterOrEqualUI, GenerateCompareGreaterOrEqualUI);
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Add(Instruction.CompareGreaterUI, GenerateCompareGreaterUI);
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Add(Instruction.CompareLess, GenerateCompareLess);
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Add(Instruction.CompareLessOrEqual, GenerateCompareLessOrEqual);
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Add(Instruction.CompareLessOrEqualUI, GenerateCompareLessOrEqualUI);
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Add(Instruction.CompareLessUI, GenerateCompareLessUI);
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Add(Instruction.CompareNotEqual, GenerateCompareNotEqual);
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Add(Instruction.ConditionalSelect, GenerateConditionalSelect);
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Add(Instruction.ConvertI64ToI32, GenerateConvertI64ToI32);
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Add(Instruction.ConvertToFP, GenerateConvertToFP);
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Add(Instruction.Copy, GenerateCopy);
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Add(Instruction.CountLeadingZeros, GenerateCountLeadingZeros);
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Add(Instruction.Divide, GenerateDivide);
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Add(Instruction.DivideUI, GenerateDivideUI);
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Add(Instruction.Fill, GenerateFill);
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Add(Instruction.Load, GenerateLoad);
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Add(Instruction.Load16, GenerateLoad16);
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Add(Instruction.Load8, GenerateLoad8);
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Add(Instruction.Multiply, GenerateMultiply);
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Add(Instruction.Multiply64HighSI, GenerateMultiply64HighSI);
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Add(Instruction.Multiply64HighUI, GenerateMultiply64HighUI);
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Add(Instruction.Negate, GenerateNegate);
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Add(Instruction.Return, GenerateReturn);
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Add(Instruction.RotateRight, GenerateRotateRight);
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Add(Instruction.ShiftLeft, GenerateShiftLeft);
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Add(Instruction.ShiftRightSI, GenerateShiftRightSI);
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Add(Instruction.ShiftRightUI, GenerateShiftRightUI);
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Add(Instruction.SignExtend16, GenerateSignExtend16);
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Add(Instruction.SignExtend32, GenerateSignExtend32);
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Add(Instruction.SignExtend8, GenerateSignExtend8);
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Add(Instruction.Spill, GenerateSpill);
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Add(Instruction.SpillArg, GenerateSpillArg);
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Add(Instruction.StackAlloc, GenerateStackAlloc);
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Add(Instruction.Store, GenerateStore);
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Add(Instruction.Store16, GenerateStore16);
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Add(Instruction.Store8, GenerateStore8);
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Add(Instruction.Subtract, GenerateSubtract);
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Add(Instruction.Tailcall, GenerateTailcall);
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Add(Instruction.VectorCreateScalar, GenerateVectorCreateScalar);
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Add(Instruction.VectorExtract, GenerateVectorExtract);
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Add(Instruction.VectorExtract16, GenerateVectorExtract16);
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Add(Instruction.VectorExtract8, GenerateVectorExtract8);
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Add(Instruction.VectorInsert, GenerateVectorInsert);
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Add(Instruction.VectorInsert16, GenerateVectorInsert16);
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Add(Instruction.VectorInsert8, GenerateVectorInsert8);
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Add(Instruction.VectorOne, GenerateVectorOne);
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Add(Instruction.VectorZero, GenerateVectorZero);
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Add(Instruction.VectorZeroUpper64, GenerateVectorZeroUpper64);
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Add(Instruction.VectorZeroUpper96, GenerateVectorZeroUpper96);
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Add(Instruction.ZeroExtend16, GenerateZeroExtend16);
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Add(Instruction.ZeroExtend32, GenerateZeroExtend32);
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Add(Instruction.ZeroExtend8, GenerateZeroExtend8);
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}
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private static void Add(Instruction inst, Action<CodeGenContext, Operation> func)
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{
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_instTable[(int)inst] = func;
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}
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public static CompiledFunction Generate(CompilerContext cctx, PtcInfo ptcInfo = null)
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{
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ControlFlowGraph cfg = cctx.Cfg;
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Logger.StartPass(PassName.Optimization);
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if ((cctx.Options & CompilerOptions.SsaForm) != 0 &&
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(cctx.Options & CompilerOptions.Optimize) != 0)
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{
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Optimizer.RunPass(cfg);
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}
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X86Optimizer.RunPass(cfg);
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Logger.EndPass(PassName.Optimization, cfg);
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Logger.StartPass(PassName.PreAllocation);
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StackAllocator stackAlloc = new StackAllocator();
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PreAllocator.RunPass(cctx, stackAlloc, out int maxCallArgs);
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Logger.EndPass(PassName.PreAllocation, cfg);
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Logger.StartPass(PassName.RegisterAllocation);
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if ((cctx.Options & CompilerOptions.SsaForm) != 0)
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{
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Ssa.Deconstruct(cfg);
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}
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IRegisterAllocator regAlloc;
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if ((cctx.Options & CompilerOptions.Lsra) != 0)
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{
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regAlloc = new LinearScanAllocator();
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}
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else
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{
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regAlloc = new HybridAllocator();
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}
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RegisterMasks regMasks = new RegisterMasks(
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CallingConvention.GetIntAvailableRegisters(),
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CallingConvention.GetVecAvailableRegisters(),
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CallingConvention.GetIntCallerSavedRegisters(),
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CallingConvention.GetVecCallerSavedRegisters(),
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CallingConvention.GetIntCalleeSavedRegisters(),
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CallingConvention.GetVecCalleeSavedRegisters());
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AllocationResult allocResult = regAlloc.RunPass(cfg, stackAlloc, regMasks);
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Logger.EndPass(PassName.RegisterAllocation, cfg);
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Logger.StartPass(PassName.CodeGeneration);
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using (MemoryStream stream = new MemoryStream())
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{
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CodeGenContext context = new CodeGenContext(stream, allocResult, maxCallArgs, cfg.Blocks.Count, ptcInfo);
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UnwindInfo unwindInfo = WritePrologue(context);
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ptcInfo?.WriteUnwindInfo(unwindInfo);
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for (BasicBlock block = cfg.Blocks.First; block != null; block = block.ListNext)
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{
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context.EnterBlock(block);
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for (Node node = block.Operations.First; node != null; node = node.ListNext)
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{
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if (node is Operation operation)
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{
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GenerateOperation(context, operation);
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}
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}
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}
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Logger.EndPass(PassName.CodeGeneration);
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return new CompiledFunction(context.GetCode(), unwindInfo);
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}
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}
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private static void GenerateOperation(CodeGenContext context, Operation operation)
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{
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if (operation.Instruction == Instruction.Extended)
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{
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IntrinsicOperation intrinOp = (IntrinsicOperation)operation;
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IntrinsicInfo info = IntrinsicTable.GetInfo(intrinOp.Intrinsic);
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switch (info.Type)
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{
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case IntrinsicType.Comis_:
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{
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Operand dest = operation.Destination;
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Operand src1 = operation.GetSource(0);
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Operand src2 = operation.GetSource(1);
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switch (intrinOp.Intrinsic)
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{
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case Intrinsic.X86Comisdeq:
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context.Assembler.Comisd(src1, src2);
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context.Assembler.Setcc(dest, X86Condition.Equal);
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break;
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case Intrinsic.X86Comisdge:
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context.Assembler.Comisd(src1, src2);
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context.Assembler.Setcc(dest, X86Condition.AboveOrEqual);
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break;
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case Intrinsic.X86Comisdlt:
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context.Assembler.Comisd(src1, src2);
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context.Assembler.Setcc(dest, X86Condition.Below);
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break;
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case Intrinsic.X86Comisseq:
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context.Assembler.Comiss(src1, src2);
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context.Assembler.Setcc(dest, X86Condition.Equal);
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break;
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case Intrinsic.X86Comissge:
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context.Assembler.Comiss(src1, src2);
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context.Assembler.Setcc(dest, X86Condition.AboveOrEqual);
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break;
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case Intrinsic.X86Comisslt:
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context.Assembler.Comiss(src1, src2);
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context.Assembler.Setcc(dest, X86Condition.Below);
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break;
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}
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context.Assembler.Movzx8(dest, dest, OperandType.I32);
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break;
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}
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case IntrinsicType.PopCount:
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{
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Operand dest = operation.Destination;
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Operand source = operation.GetSource(0);
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EnsureSameType(dest, source);
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Debug.Assert(dest.Type.IsInteger());
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context.Assembler.Popcnt(dest, source, dest.Type);
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break;
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}
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case IntrinsicType.Unary:
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{
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Operand dest = operation.Destination;
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Operand source = operation.GetSource(0);
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EnsureSameType(dest, source);
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Debug.Assert(!dest.Type.IsInteger());
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context.Assembler.WriteInstruction(info.Inst, dest, source);
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break;
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}
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case IntrinsicType.UnaryToGpr:
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{
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Operand dest = operation.Destination;
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Operand source = operation.GetSource(0);
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Debug.Assert(dest.Type.IsInteger() && !source.Type.IsInteger());
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if (intrinOp.Intrinsic == Intrinsic.X86Cvtsi2si)
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{
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if (dest.Type == OperandType.I32)
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{
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context.Assembler.Movd(dest, source); // int _mm_cvtsi128_si32(__m128i a)
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}
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else /* if (dest.Type == OperandType.I64) */
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{
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context.Assembler.Movq(dest, source); // __int64 _mm_cvtsi128_si64(__m128i a)
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}
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}
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else
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{
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context.Assembler.WriteInstruction(info.Inst, dest, source, dest.Type);
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}
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break;
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}
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case IntrinsicType.Binary:
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{
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Operand dest = operation.Destination;
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Operand src1 = operation.GetSource(0);
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Operand src2 = operation.GetSource(1);
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EnsureSameType(dest, src1);
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if (!HardwareCapabilities.SupportsVexEncoding)
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{
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EnsureSameReg(dest, src1);
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}
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Debug.Assert(!dest.Type.IsInteger());
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Debug.Assert(!src2.Type.IsInteger() || src2.Kind == OperandKind.Constant);
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context.Assembler.WriteInstruction(info.Inst, dest, src1, src2);
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break;
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}
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case IntrinsicType.BinaryGpr:
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{
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Operand dest = operation.Destination;
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Operand src1 = operation.GetSource(0);
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Operand src2 = operation.GetSource(1);
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EnsureSameType(dest, src1);
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if (!HardwareCapabilities.SupportsVexEncoding)
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{
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EnsureSameReg(dest, src1);
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}
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Debug.Assert(!dest.Type.IsInteger() && src2.Type.IsInteger());
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context.Assembler.WriteInstruction(info.Inst, dest, src1, src2, src2.Type);
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break;
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}
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case IntrinsicType.BinaryImm:
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{
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Operand dest = operation.Destination;
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Operand src1 = operation.GetSource(0);
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Operand src2 = operation.GetSource(1);
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EnsureSameType(dest, src1);
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if (!HardwareCapabilities.SupportsVexEncoding)
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{
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EnsureSameReg(dest, src1);
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}
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Debug.Assert(!dest.Type.IsInteger() && src2.Kind == OperandKind.Constant);
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context.Assembler.WriteInstruction(info.Inst, dest, src1, src2.AsByte());
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break;
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}
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case IntrinsicType.Ternary:
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{
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Operand dest = operation.Destination;
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Operand src1 = operation.GetSource(0);
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Operand src2 = operation.GetSource(1);
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Operand src3 = operation.GetSource(2);
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EnsureSameType(dest, src1, src2, src3);
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Debug.Assert(!dest.Type.IsInteger());
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if (info.Inst == X86Instruction.Blendvpd && HardwareCapabilities.SupportsVexEncoding)
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{
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context.Assembler.WriteInstruction(X86Instruction.Vblendvpd, dest, src1, src2, src3);
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}
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else if (info.Inst == X86Instruction.Blendvps && HardwareCapabilities.SupportsVexEncoding)
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{
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context.Assembler.WriteInstruction(X86Instruction.Vblendvps, dest, src1, src2, src3);
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}
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else if (info.Inst == X86Instruction.Pblendvb && HardwareCapabilities.SupportsVexEncoding)
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{
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context.Assembler.WriteInstruction(X86Instruction.Vpblendvb, dest, src1, src2, src3);
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}
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else
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{
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EnsureSameReg(dest, src1);
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Debug.Assert(src3.GetRegister().Index == 0);
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context.Assembler.WriteInstruction(info.Inst, dest, src1, src2);
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}
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break;
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}
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case IntrinsicType.TernaryImm:
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{
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Operand dest = operation.Destination;
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Operand src1 = operation.GetSource(0);
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Operand src2 = operation.GetSource(1);
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Operand src3 = operation.GetSource(2);
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EnsureSameType(dest, src1, src2);
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if (!HardwareCapabilities.SupportsVexEncoding)
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{
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EnsureSameReg(dest, src1);
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}
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Debug.Assert(!dest.Type.IsInteger() && src3.Kind == OperandKind.Constant);
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context.Assembler.WriteInstruction(info.Inst, dest, src1, src2, src3.AsByte());
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break;
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}
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}
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}
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else
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{
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Action<CodeGenContext, Operation> func = _instTable[(int)operation.Instruction];
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if (func != null)
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{
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func(context, operation);
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}
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else
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{
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throw new ArgumentException($"Invalid instruction \"{operation.Instruction}\".");
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}
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}
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}
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private static void GenerateAdd(CodeGenContext context, Operation operation)
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{
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Operand dest = operation.Destination;
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Operand src1 = operation.GetSource(0);
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Operand src2 = operation.GetSource(1);
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ValidateBinOp(dest, src1, src2);
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if (dest.Type.IsInteger())
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{
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context.Assembler.Add(dest, src2, dest.Type);
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}
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else if (dest.Type == OperandType.FP32)
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{
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context.Assembler.Addss(dest, src1, src2);
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}
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else /* if (dest.Type == OperandType.FP64) */
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{
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context.Assembler.Addsd(dest, src1, src2);
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}
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}
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private static void GenerateBitwiseAnd(CodeGenContext context, Operation operation)
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{
|
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Operand dest = operation.Destination;
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Operand src1 = operation.GetSource(0);
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Operand src2 = operation.GetSource(1);
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|
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ValidateBinOp(dest, src1, src2);
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Debug.Assert(dest.Type.IsInteger());
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context.Assembler.And(dest, src2, dest.Type);
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}
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private static void GenerateBitwiseExclusiveOr(CodeGenContext context, Operation operation)
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{
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0);
|
|
Operand src2 = operation.GetSource(1);
|
|
|
|
ValidateBinOp(dest, src1, src2);
|
|
|
|
if (dest.Type.IsInteger())
|
|
{
|
|
context.Assembler.Xor(dest, src2, dest.Type);
|
|
}
|
|
else
|
|
{
|
|
context.Assembler.Xorps(dest, src1, src2);
|
|
}
|
|
}
|
|
|
|
private static void GenerateBitwiseNot(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
ValidateUnOp(dest, source);
|
|
|
|
Debug.Assert(dest.Type.IsInteger());
|
|
|
|
context.Assembler.Not(dest);
|
|
}
|
|
|
|
private static void GenerateBitwiseOr(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0);
|
|
Operand src2 = operation.GetSource(1);
|
|
|
|
ValidateBinOp(dest, src1, src2);
|
|
|
|
Debug.Assert(dest.Type.IsInteger());
|
|
|
|
context.Assembler.Or(dest, src2, dest.Type);
|
|
}
|
|
|
|
private static void GenerateBranch(CodeGenContext context, Operation operation)
|
|
{
|
|
context.JumpTo(context.CurrBlock.Branch);
|
|
}
|
|
|
|
private static void GenerateBranchIfFalse(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand source = operation.GetSource(0);
|
|
|
|
context.Assembler.Test(source, source, source.Type);
|
|
|
|
context.JumpTo(X86Condition.Equal, context.CurrBlock.Branch);
|
|
}
|
|
|
|
private static void GenerateBranchIfTrue(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand source = operation.GetSource(0);
|
|
|
|
context.Assembler.Test(source, source, source.Type);
|
|
|
|
context.JumpTo(X86Condition.NotEqual, context.CurrBlock.Branch);
|
|
}
|
|
|
|
private static void GenerateByteSwap(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
ValidateUnOp(dest, source);
|
|
|
|
Debug.Assert(dest.Type.IsInteger());
|
|
|
|
context.Assembler.Bswap(dest);
|
|
}
|
|
|
|
private static void GenerateCall(CodeGenContext context, Operation operation)
|
|
{
|
|
context.Assembler.Call(operation.GetSource(0));
|
|
}
|
|
|
|
private static void GenerateClobber(CodeGenContext context, Operation operation)
|
|
{
|
|
// This is only used to indicate that a register is clobbered to the
|
|
// register allocator, we don't need to produce any code.
|
|
}
|
|
|
|
private static void GenerateCompareAndSwap(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand src1 = operation.GetSource(0);
|
|
|
|
if (operation.SourcesCount == 5) // CompareAndSwap128 has 5 sources, compared to CompareAndSwap64/32's 3.
|
|
{
|
|
MemoryOperand memOp = MemoryOp(OperandType.I64, src1);
|
|
|
|
context.Assembler.Cmpxchg16b(memOp);
|
|
}
|
|
else
|
|
{
|
|
Operand src2 = operation.GetSource(1);
|
|
Operand src3 = operation.GetSource(2);
|
|
|
|
EnsureSameType(src2, src3);
|
|
|
|
MemoryOperand memOp = MemoryOp(src3.Type, src1);
|
|
|
|
context.Assembler.Cmpxchg(memOp, src3);
|
|
}
|
|
}
|
|
|
|
private static void GenerateCompareEqual(CodeGenContext context, Operation operation)
|
|
{
|
|
GenerateCompare(context, operation, X86Condition.Equal);
|
|
}
|
|
|
|
private static void GenerateCompareGreater(CodeGenContext context, Operation operation)
|
|
{
|
|
GenerateCompare(context, operation, X86Condition.Greater);
|
|
}
|
|
|
|
private static void GenerateCompareGreaterOrEqual(CodeGenContext context, Operation operation)
|
|
{
|
|
GenerateCompare(context, operation, X86Condition.GreaterOrEqual);
|
|
}
|
|
|
|
private static void GenerateCompareGreaterOrEqualUI(CodeGenContext context, Operation operation)
|
|
{
|
|
GenerateCompare(context, operation, X86Condition.AboveOrEqual);
|
|
}
|
|
|
|
private static void GenerateCompareGreaterUI(CodeGenContext context, Operation operation)
|
|
{
|
|
GenerateCompare(context, operation, X86Condition.Above);
|
|
}
|
|
|
|
private static void GenerateCompareLess(CodeGenContext context, Operation operation)
|
|
{
|
|
GenerateCompare(context, operation, X86Condition.Less);
|
|
}
|
|
|
|
private static void GenerateCompareLessOrEqual(CodeGenContext context, Operation operation)
|
|
{
|
|
GenerateCompare(context, operation, X86Condition.LessOrEqual);
|
|
}
|
|
|
|
private static void GenerateCompareLessOrEqualUI(CodeGenContext context, Operation operation)
|
|
{
|
|
GenerateCompare(context, operation, X86Condition.BelowOrEqual);
|
|
}
|
|
|
|
private static void GenerateCompareLessUI(CodeGenContext context, Operation operation)
|
|
{
|
|
GenerateCompare(context, operation, X86Condition.Below);
|
|
}
|
|
|
|
private static void GenerateCompareNotEqual(CodeGenContext context, Operation operation)
|
|
{
|
|
GenerateCompare(context, operation, X86Condition.NotEqual);
|
|
}
|
|
|
|
private static void GenerateCompare(CodeGenContext context, Operation operation, X86Condition condition)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0);
|
|
Operand src2 = operation.GetSource(1);
|
|
|
|
EnsureSameType(src1, src2);
|
|
|
|
Debug.Assert(dest.Type == OperandType.I32);
|
|
|
|
context.Assembler.Cmp(src1, src2, src1.Type);
|
|
context.Assembler.Setcc(dest, condition);
|
|
context.Assembler.Movzx8(dest, dest, OperandType.I32);
|
|
}
|
|
|
|
private static void GenerateConditionalSelect(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0);
|
|
Operand src2 = operation.GetSource(1);
|
|
Operand src3 = operation.GetSource(2);
|
|
|
|
EnsureSameReg (dest, src3);
|
|
EnsureSameType(dest, src2, src3);
|
|
|
|
Debug.Assert(dest.Type.IsInteger());
|
|
Debug.Assert(src1.Type == OperandType.I32);
|
|
|
|
context.Assembler.Test (src1, src1, src1.Type);
|
|
context.Assembler.Cmovcc(dest, src2, dest.Type, X86Condition.NotEqual);
|
|
}
|
|
|
|
private static void GenerateConvertI64ToI32(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(dest.Type == OperandType.I32 && source.Type == OperandType.I64);
|
|
|
|
context.Assembler.Mov(dest, source, OperandType.I32);
|
|
}
|
|
|
|
private static void GenerateConvertToFP(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(dest.Type == OperandType.FP32 || dest.Type == OperandType.FP64);
|
|
|
|
if (dest.Type == OperandType.FP32)
|
|
{
|
|
Debug.Assert(source.Type.IsInteger() || source.Type == OperandType.FP64);
|
|
|
|
if (source.Type.IsInteger())
|
|
{
|
|
context.Assembler.Xorps (dest, dest, dest);
|
|
context.Assembler.Cvtsi2ss(dest, dest, source, source.Type);
|
|
}
|
|
else /* if (source.Type == OperandType.FP64) */
|
|
{
|
|
context.Assembler.Cvtsd2ss(dest, dest, source);
|
|
|
|
GenerateZeroUpper96(context, dest, dest);
|
|
}
|
|
}
|
|
else /* if (dest.Type == OperandType.FP64) */
|
|
{
|
|
Debug.Assert(source.Type.IsInteger() || source.Type == OperandType.FP32);
|
|
|
|
if (source.Type.IsInteger())
|
|
{
|
|
context.Assembler.Xorps (dest, dest, dest);
|
|
context.Assembler.Cvtsi2sd(dest, dest, source, source.Type);
|
|
}
|
|
else /* if (source.Type == OperandType.FP32) */
|
|
{
|
|
context.Assembler.Cvtss2sd(dest, dest, source);
|
|
|
|
GenerateZeroUpper64(context, dest, dest);
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void GenerateCopy(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
EnsureSameType(dest, source);
|
|
|
|
Debug.Assert(dest.Type.IsInteger() || source.Kind != OperandKind.Constant);
|
|
|
|
// Moves to the same register are useless.
|
|
if (dest.Kind == source.Kind && dest.Value == source.Value)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (dest.Kind == OperandKind.Register &&
|
|
source.Kind == OperandKind.Constant && source.Value == 0)
|
|
{
|
|
// Assemble "mov reg, 0" as "xor reg, reg" as the later is more efficient.
|
|
context.Assembler.Xor(dest, dest, OperandType.I32);
|
|
}
|
|
else if (dest.Type.IsInteger())
|
|
{
|
|
context.Assembler.Mov(dest, source, dest.Type);
|
|
}
|
|
else
|
|
{
|
|
context.Assembler.Movdqu(dest, source);
|
|
}
|
|
}
|
|
|
|
private static void GenerateCountLeadingZeros(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
EnsureSameType(dest, source);
|
|
|
|
Debug.Assert(dest.Type.IsInteger());
|
|
|
|
context.Assembler.Bsr(dest, source, dest.Type);
|
|
|
|
int operandSize = dest.Type == OperandType.I32 ? 32 : 64;
|
|
int operandMask = operandSize - 1;
|
|
|
|
// When the input operand is 0, the result is undefined, however the
|
|
// ZF flag is set. We are supposed to return the operand size on that
|
|
// case. So, add an additional jump to handle that case, by moving the
|
|
// operand size constant to the destination register.
|
|
context.JumpToNear(X86Condition.NotEqual);
|
|
|
|
context.Assembler.Mov(dest, Const(operandSize | operandMask), OperandType.I32);
|
|
|
|
context.JumpHere();
|
|
|
|
// BSR returns the zero based index of the last bit set on the operand,
|
|
// starting from the least significant bit. However we are supposed to
|
|
// return the number of 0 bits on the high end. So, we invert the result
|
|
// of the BSR using XOR to get the correct value.
|
|
context.Assembler.Xor(dest, Const(operandMask), OperandType.I32);
|
|
}
|
|
|
|
private static void GenerateDivide(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand dividend = operation.GetSource(0);
|
|
Operand divisor = operation.GetSource(1);
|
|
|
|
if (!dest.Type.IsInteger())
|
|
{
|
|
ValidateBinOp(dest, dividend, divisor);
|
|
}
|
|
|
|
if (dest.Type.IsInteger())
|
|
{
|
|
divisor = operation.GetSource(2);
|
|
|
|
EnsureSameType(dest, divisor);
|
|
|
|
if (divisor.Type == OperandType.I32)
|
|
{
|
|
context.Assembler.Cdq();
|
|
}
|
|
else
|
|
{
|
|
context.Assembler.Cqo();
|
|
}
|
|
|
|
context.Assembler.Idiv(divisor);
|
|
}
|
|
else if (dest.Type == OperandType.FP32)
|
|
{
|
|
context.Assembler.Divss(dest, dividend, divisor);
|
|
}
|
|
else /* if (dest.Type == OperandType.FP64) */
|
|
{
|
|
context.Assembler.Divsd(dest, dividend, divisor);
|
|
}
|
|
}
|
|
|
|
private static void GenerateDivideUI(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand divisor = operation.GetSource(2);
|
|
|
|
Operand rdx = Register(X86Register.Rdx);
|
|
|
|
Debug.Assert(divisor.Type.IsInteger());
|
|
|
|
context.Assembler.Xor(rdx, rdx, OperandType.I32);
|
|
context.Assembler.Div(divisor);
|
|
}
|
|
|
|
private static void GenerateFill(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand offset = operation.GetSource(0);
|
|
|
|
Debug.Assert(offset.Kind == OperandKind.Constant);
|
|
|
|
int offs = offset.AsInt32() + context.CallArgsRegionSize;
|
|
|
|
Operand rsp = Register(X86Register.Rsp);
|
|
|
|
MemoryOperand memOp = MemoryOp(dest.Type, rsp, null, Multiplier.x1, offs);
|
|
|
|
GenerateLoad(context, memOp, dest);
|
|
}
|
|
|
|
private static void GenerateLoad(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand value = operation.Destination;
|
|
Operand address = Memory(operation.GetSource(0), value.Type);
|
|
|
|
GenerateLoad(context, address, value);
|
|
}
|
|
|
|
private static void GenerateLoad16(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand value = operation.Destination;
|
|
Operand address = Memory(operation.GetSource(0), value.Type);
|
|
|
|
Debug.Assert(value.Type.IsInteger());
|
|
|
|
context.Assembler.Movzx16(value, address, value.Type);
|
|
}
|
|
|
|
private static void GenerateLoad8(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand value = operation.Destination;
|
|
Operand address = Memory(operation.GetSource(0), value.Type);
|
|
|
|
Debug.Assert(value.Type.IsInteger());
|
|
|
|
context.Assembler.Movzx8(value, address, value.Type);
|
|
}
|
|
|
|
private static void GenerateMultiply(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0);
|
|
Operand src2 = operation.GetSource(1);
|
|
|
|
if (src2.Kind != OperandKind.Constant)
|
|
{
|
|
EnsureSameReg(dest, src1);
|
|
}
|
|
|
|
EnsureSameType(dest, src1, src2);
|
|
|
|
if (dest.Type.IsInteger())
|
|
{
|
|
if (src2.Kind == OperandKind.Constant)
|
|
{
|
|
context.Assembler.Imul(dest, src1, src2, dest.Type);
|
|
}
|
|
else
|
|
{
|
|
context.Assembler.Imul(dest, src2, dest.Type);
|
|
}
|
|
}
|
|
else if (dest.Type == OperandType.FP32)
|
|
{
|
|
context.Assembler.Mulss(dest, src1, src2);
|
|
}
|
|
else /* if (dest.Type == OperandType.FP64) */
|
|
{
|
|
context.Assembler.Mulsd(dest, src1, src2);
|
|
}
|
|
}
|
|
|
|
private static void GenerateMultiply64HighSI(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand source = operation.GetSource(1);
|
|
|
|
Debug.Assert(source.Type == OperandType.I64);
|
|
|
|
context.Assembler.Imul(source);
|
|
}
|
|
|
|
private static void GenerateMultiply64HighUI(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand source = operation.GetSource(1);
|
|
|
|
Debug.Assert(source.Type == OperandType.I64);
|
|
|
|
context.Assembler.Mul(source);
|
|
}
|
|
|
|
private static void GenerateNegate(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
ValidateUnOp(dest, source);
|
|
|
|
Debug.Assert(dest.Type.IsInteger());
|
|
|
|
context.Assembler.Neg(dest);
|
|
}
|
|
|
|
private static void GenerateReturn(CodeGenContext context, Operation operation)
|
|
{
|
|
WriteEpilogue(context);
|
|
|
|
context.Assembler.Return();
|
|
}
|
|
|
|
private static void GenerateRotateRight(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0);
|
|
Operand src2 = operation.GetSource(1);
|
|
|
|
ValidateShift(dest, src1, src2);
|
|
|
|
context.Assembler.Ror(dest, src2, dest.Type);
|
|
}
|
|
|
|
private static void GenerateShiftLeft(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0);
|
|
Operand src2 = operation.GetSource(1);
|
|
|
|
ValidateShift(dest, src1, src2);
|
|
|
|
context.Assembler.Shl(dest, src2, dest.Type);
|
|
}
|
|
|
|
private static void GenerateShiftRightSI(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0);
|
|
Operand src2 = operation.GetSource(1);
|
|
|
|
ValidateShift(dest, src1, src2);
|
|
|
|
context.Assembler.Sar(dest, src2, dest.Type);
|
|
}
|
|
|
|
private static void GenerateShiftRightUI(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0);
|
|
Operand src2 = operation.GetSource(1);
|
|
|
|
ValidateShift(dest, src1, src2);
|
|
|
|
context.Assembler.Shr(dest, src2, dest.Type);
|
|
}
|
|
|
|
private static void GenerateSignExtend16(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(dest.Type.IsInteger() && source.Type.IsInteger());
|
|
|
|
context.Assembler.Movsx16(dest, source, dest.Type);
|
|
}
|
|
|
|
private static void GenerateSignExtend32(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(dest.Type.IsInteger() && source.Type.IsInteger());
|
|
|
|
context.Assembler.Movsx32(dest, source, dest.Type);
|
|
}
|
|
|
|
private static void GenerateSignExtend8(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(dest.Type.IsInteger() && source.Type.IsInteger());
|
|
|
|
context.Assembler.Movsx8(dest, source, dest.Type);
|
|
}
|
|
|
|
private static void GenerateSpill(CodeGenContext context, Operation operation)
|
|
{
|
|
GenerateSpill(context, operation, context.CallArgsRegionSize);
|
|
}
|
|
|
|
private static void GenerateSpillArg(CodeGenContext context, Operation operation)
|
|
{
|
|
GenerateSpill(context, operation, 0);
|
|
}
|
|
|
|
private static void GenerateSpill(CodeGenContext context, Operation operation, int baseOffset)
|
|
{
|
|
Operand offset = operation.GetSource(0);
|
|
Operand source = operation.GetSource(1);
|
|
|
|
Debug.Assert(offset.Kind == OperandKind.Constant);
|
|
|
|
int offs = offset.AsInt32() + baseOffset;
|
|
|
|
Operand rsp = Register(X86Register.Rsp);
|
|
|
|
MemoryOperand memOp = MemoryOp(source.Type, rsp, null, Multiplier.x1, offs);
|
|
|
|
GenerateStore(context, memOp, source);
|
|
}
|
|
|
|
private static void GenerateStackAlloc(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand offset = operation.GetSource(0);
|
|
|
|
Debug.Assert(offset.Kind == OperandKind.Constant);
|
|
|
|
int offs = offset.AsInt32() + context.CallArgsRegionSize;
|
|
|
|
Operand rsp = Register(X86Register.Rsp);
|
|
|
|
MemoryOperand memOp = MemoryOp(OperandType.I64, rsp, null, Multiplier.x1, offs);
|
|
|
|
context.Assembler.Lea(dest, memOp, OperandType.I64);
|
|
}
|
|
|
|
private static void GenerateStore(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand value = operation.GetSource(1);
|
|
Operand address = Memory(operation.GetSource(0), value.Type);
|
|
|
|
GenerateStore(context, address, value);
|
|
}
|
|
|
|
private static void GenerateStore16(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand value = operation.GetSource(1);
|
|
Operand address = Memory(operation.GetSource(0), value.Type);
|
|
|
|
Debug.Assert(value.Type.IsInteger());
|
|
|
|
context.Assembler.Mov16(address, value);
|
|
}
|
|
|
|
private static void GenerateStore8(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand value = operation.GetSource(1);
|
|
Operand address = Memory(operation.GetSource(0), value.Type);
|
|
|
|
Debug.Assert(value.Type.IsInteger());
|
|
|
|
context.Assembler.Mov8(address, value);
|
|
}
|
|
|
|
private static void GenerateSubtract(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0);
|
|
Operand src2 = operation.GetSource(1);
|
|
|
|
ValidateBinOp(dest, src1, src2);
|
|
|
|
if (dest.Type.IsInteger())
|
|
{
|
|
context.Assembler.Sub(dest, src2, dest.Type);
|
|
}
|
|
else if (dest.Type == OperandType.FP32)
|
|
{
|
|
context.Assembler.Subss(dest, src1, src2);
|
|
}
|
|
else /* if (dest.Type == OperandType.FP64) */
|
|
{
|
|
context.Assembler.Subsd(dest, src1, src2);
|
|
}
|
|
}
|
|
|
|
private static void GenerateTailcall(CodeGenContext context, Operation operation)
|
|
{
|
|
WriteEpilogue(context);
|
|
|
|
context.Assembler.Jmp(operation.GetSource(0));
|
|
}
|
|
|
|
private static void GenerateVectorCreateScalar(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(!dest.Type.IsInteger() && source.Type.IsInteger());
|
|
|
|
if (source.Type == OperandType.I32)
|
|
{
|
|
context.Assembler.Movd(dest, source); // (__m128i _mm_cvtsi32_si128(int a))
|
|
}
|
|
else /* if (source.Type == OperandType.I64) */
|
|
{
|
|
context.Assembler.Movq(dest, source); // (__m128i _mm_cvtsi64_si128(__int64 a))
|
|
}
|
|
}
|
|
|
|
private static void GenerateVectorExtract(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination; //Value
|
|
Operand src1 = operation.GetSource(0); //Vector
|
|
Operand src2 = operation.GetSource(1); //Index
|
|
|
|
Debug.Assert(src1.Type == OperandType.V128);
|
|
Debug.Assert(src2.Kind == OperandKind.Constant);
|
|
|
|
byte index = src2.AsByte();
|
|
|
|
if (dest.Type == OperandType.I32)
|
|
{
|
|
Debug.Assert(index < 4);
|
|
|
|
if (HardwareCapabilities.SupportsSse41)
|
|
{
|
|
context.Assembler.Pextrd(dest, src1, index);
|
|
}
|
|
else
|
|
{
|
|
if (index != 0)
|
|
{
|
|
int mask0 = 0b11_10_01_00;
|
|
int mask1 = 0b11_10_01_00;
|
|
|
|
mask0 = BitUtils.RotateRight(mask0, index * 2, 8);
|
|
mask1 = BitUtils.RotateRight(mask1, 8 - index * 2, 8);
|
|
|
|
context.Assembler.Pshufd(src1, src1, (byte)mask0);
|
|
context.Assembler.Movd (dest, src1);
|
|
context.Assembler.Pshufd(src1, src1, (byte)mask1);
|
|
}
|
|
else
|
|
{
|
|
context.Assembler.Movd(dest, src1);
|
|
}
|
|
}
|
|
}
|
|
else if (dest.Type == OperandType.I64)
|
|
{
|
|
Debug.Assert(index < 2);
|
|
|
|
if (HardwareCapabilities.SupportsSse41)
|
|
{
|
|
context.Assembler.Pextrq(dest, src1, index);
|
|
}
|
|
else
|
|
{
|
|
if (index != 0)
|
|
{
|
|
const byte mask = 0b01_00_11_10;
|
|
|
|
context.Assembler.Pshufd(src1, src1, mask);
|
|
context.Assembler.Movq (dest, src1);
|
|
context.Assembler.Pshufd(src1, src1, mask);
|
|
}
|
|
else
|
|
{
|
|
context.Assembler.Movq(dest, src1);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Debug.Assert(index < (dest.Type == OperandType.FP32 ? 4 : 2));
|
|
|
|
// Floating-point types.
|
|
if ((index >= 2 && dest.Type == OperandType.FP32) ||
|
|
(index == 1 && dest.Type == OperandType.FP64))
|
|
{
|
|
context.Assembler.Movhlps(dest, dest, src1);
|
|
context.Assembler.Movq (dest, dest);
|
|
}
|
|
else
|
|
{
|
|
context.Assembler.Movq(dest, src1);
|
|
}
|
|
|
|
if (dest.Type == OperandType.FP32)
|
|
{
|
|
context.Assembler.Pshufd(dest, dest, (byte)(0xfc | (index & 1)));
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void GenerateVectorExtract16(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination; //Value
|
|
Operand src1 = operation.GetSource(0); //Vector
|
|
Operand src2 = operation.GetSource(1); //Index
|
|
|
|
Debug.Assert(src1.Type == OperandType.V128);
|
|
Debug.Assert(src2.Kind == OperandKind.Constant);
|
|
|
|
byte index = src2.AsByte();
|
|
|
|
Debug.Assert(index < 8);
|
|
|
|
context.Assembler.Pextrw(dest, src1, index);
|
|
}
|
|
|
|
private static void GenerateVectorExtract8(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination; //Value
|
|
Operand src1 = operation.GetSource(0); //Vector
|
|
Operand src2 = operation.GetSource(1); //Index
|
|
|
|
Debug.Assert(src1.Type == OperandType.V128);
|
|
Debug.Assert(src2.Kind == OperandKind.Constant);
|
|
|
|
byte index = src2.AsByte();
|
|
|
|
Debug.Assert(index < 16);
|
|
|
|
if (HardwareCapabilities.SupportsSse41)
|
|
{
|
|
context.Assembler.Pextrb(dest, src1, index);
|
|
}
|
|
else
|
|
{
|
|
context.Assembler.Pextrw(dest, src1, (byte)(index >> 1));
|
|
|
|
if ((index & 1) != 0)
|
|
{
|
|
context.Assembler.Shr(dest, Const(8), OperandType.I32);
|
|
}
|
|
else
|
|
{
|
|
context.Assembler.Movzx8(dest, dest, OperandType.I32);
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void GenerateVectorInsert(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0); //Vector
|
|
Operand src2 = operation.GetSource(1); //Value
|
|
Operand src3 = operation.GetSource(2); //Index
|
|
|
|
if (!HardwareCapabilities.SupportsVexEncoding)
|
|
{
|
|
EnsureSameReg(dest, src1);
|
|
}
|
|
|
|
Debug.Assert(src1.Type == OperandType.V128);
|
|
Debug.Assert(src3.Kind == OperandKind.Constant);
|
|
|
|
byte index = src3.AsByte();
|
|
|
|
void InsertIntSse2(int words)
|
|
{
|
|
if (dest.GetRegister() != src1.GetRegister())
|
|
{
|
|
context.Assembler.Movdqu(dest, src1);
|
|
}
|
|
|
|
for (int word = 0; word < words; word++)
|
|
{
|
|
// Insert lower 16-bits.
|
|
context.Assembler.Pinsrw(dest, dest, src2, (byte)(index * words + word));
|
|
|
|
// Move next word down.
|
|
context.Assembler.Ror(src2, Const(16), src2.Type);
|
|
}
|
|
}
|
|
|
|
if (src2.Type == OperandType.I32)
|
|
{
|
|
Debug.Assert(index < 4);
|
|
|
|
if (HardwareCapabilities.SupportsSse41)
|
|
{
|
|
context.Assembler.Pinsrd(dest, src1, src2, index);
|
|
}
|
|
else
|
|
{
|
|
InsertIntSse2(2);
|
|
}
|
|
}
|
|
else if (src2.Type == OperandType.I64)
|
|
{
|
|
Debug.Assert(index < 2);
|
|
|
|
if (HardwareCapabilities.SupportsSse41)
|
|
{
|
|
context.Assembler.Pinsrq(dest, src1, src2, index);
|
|
}
|
|
else
|
|
{
|
|
InsertIntSse2(4);
|
|
}
|
|
}
|
|
else if (src2.Type == OperandType.FP32)
|
|
{
|
|
Debug.Assert(index < 4);
|
|
|
|
if (index != 0)
|
|
{
|
|
if (HardwareCapabilities.SupportsSse41)
|
|
{
|
|
context.Assembler.Insertps(dest, src1, src2, (byte)(index << 4));
|
|
}
|
|
else
|
|
{
|
|
if (src1.GetRegister() == src2.GetRegister())
|
|
{
|
|
int mask = 0b11_10_01_00;
|
|
|
|
mask &= ~(0b11 << index * 2);
|
|
|
|
context.Assembler.Pshufd(dest, src1, (byte)mask);
|
|
}
|
|
else
|
|
{
|
|
int mask0 = 0b11_10_01_00;
|
|
int mask1 = 0b11_10_01_00;
|
|
|
|
mask0 = BitUtils.RotateRight(mask0, index * 2, 8);
|
|
mask1 = BitUtils.RotateRight(mask1, 8 - index * 2, 8);
|
|
|
|
context.Assembler.Pshufd(src1, src1, (byte)mask0); // Lane to be inserted in position 0.
|
|
context.Assembler.Movss (dest, src1, src2); // dest[127:0] = src1[127:32] | src2[31:0]
|
|
context.Assembler.Pshufd(dest, dest, (byte)mask1); // Inserted lane in original position.
|
|
|
|
if (dest.GetRegister() != src1.GetRegister())
|
|
{
|
|
context.Assembler.Pshufd(src1, src1, (byte)mask1); // Restore src1.
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
context.Assembler.Movss(dest, src1, src2);
|
|
}
|
|
}
|
|
else /* if (src2.Type == OperandType.FP64) */
|
|
{
|
|
Debug.Assert(index < 2);
|
|
|
|
if (index != 0)
|
|
{
|
|
context.Assembler.Movlhps(dest, src1, src2);
|
|
}
|
|
else
|
|
{
|
|
context.Assembler.Movsd(dest, src1, src2);
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void GenerateVectorInsert16(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0); //Vector
|
|
Operand src2 = operation.GetSource(1); //Value
|
|
Operand src3 = operation.GetSource(2); //Index
|
|
|
|
if (!HardwareCapabilities.SupportsVexEncoding)
|
|
{
|
|
EnsureSameReg(dest, src1);
|
|
}
|
|
|
|
Debug.Assert(src1.Type == OperandType.V128);
|
|
Debug.Assert(src3.Kind == OperandKind.Constant);
|
|
|
|
byte index = src3.AsByte();
|
|
|
|
context.Assembler.Pinsrw(dest, src1, src2, index);
|
|
}
|
|
|
|
private static void GenerateVectorInsert8(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0); //Vector
|
|
Operand src2 = operation.GetSource(1); //Value
|
|
Operand src3 = operation.GetSource(2); //Index
|
|
|
|
// It's not possible to emulate this instruction without
|
|
// SSE 4.1 support without the use of a temporary register,
|
|
// so we instead handle that case on the pre-allocator when
|
|
// SSE 4.1 is not supported on the CPU.
|
|
Debug.Assert(HardwareCapabilities.SupportsSse41);
|
|
|
|
if (!HardwareCapabilities.SupportsVexEncoding)
|
|
{
|
|
EnsureSameReg(dest, src1);
|
|
}
|
|
|
|
Debug.Assert(src1.Type == OperandType.V128);
|
|
Debug.Assert(src3.Kind == OperandKind.Constant);
|
|
|
|
byte index = src3.AsByte();
|
|
|
|
context.Assembler.Pinsrb(dest, src1, src2, index);
|
|
}
|
|
|
|
private static void GenerateVectorOne(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
|
|
Debug.Assert(!dest.Type.IsInteger());
|
|
|
|
context.Assembler.Pcmpeqw(dest, dest, dest);
|
|
}
|
|
|
|
private static void GenerateVectorZero(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
|
|
Debug.Assert(!dest.Type.IsInteger());
|
|
|
|
context.Assembler.Xorps(dest, dest, dest);
|
|
}
|
|
|
|
private static void GenerateVectorZeroUpper64(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(dest.Type == OperandType.V128 && source.Type == OperandType.V128);
|
|
|
|
GenerateZeroUpper64(context, dest, source);
|
|
}
|
|
|
|
private static void GenerateVectorZeroUpper96(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(dest.Type == OperandType.V128 && source.Type == OperandType.V128);
|
|
|
|
GenerateZeroUpper96(context, dest, source);
|
|
}
|
|
|
|
private static void GenerateZeroExtend16(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(dest.Type.IsInteger() && source.Type.IsInteger());
|
|
|
|
context.Assembler.Movzx16(dest, source, OperandType.I32);
|
|
}
|
|
|
|
private static void GenerateZeroExtend32(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(dest.Type.IsInteger() && source.Type.IsInteger());
|
|
|
|
context.Assembler.Mov(dest, source, OperandType.I32);
|
|
}
|
|
|
|
private static void GenerateZeroExtend8(CodeGenContext context, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(dest.Type.IsInteger() && source.Type.IsInteger());
|
|
|
|
context.Assembler.Movzx8(dest, source, OperandType.I32);
|
|
}
|
|
|
|
private static void GenerateLoad(CodeGenContext context, Operand address, Operand value)
|
|
{
|
|
switch (value.Type)
|
|
{
|
|
case OperandType.I32: context.Assembler.Mov (value, address, OperandType.I32); break;
|
|
case OperandType.I64: context.Assembler.Mov (value, address, OperandType.I64); break;
|
|
case OperandType.FP32: context.Assembler.Movd (value, address); break;
|
|
case OperandType.FP64: context.Assembler.Movq (value, address); break;
|
|
case OperandType.V128: context.Assembler.Movdqu(value, address); break;
|
|
|
|
default: Debug.Assert(false); break;
|
|
}
|
|
}
|
|
|
|
private static void GenerateStore(CodeGenContext context, Operand address, Operand value)
|
|
{
|
|
switch (value.Type)
|
|
{
|
|
case OperandType.I32: context.Assembler.Mov (address, value, OperandType.I32); break;
|
|
case OperandType.I64: context.Assembler.Mov (address, value, OperandType.I64); break;
|
|
case OperandType.FP32: context.Assembler.Movd (address, value); break;
|
|
case OperandType.FP64: context.Assembler.Movq (address, value); break;
|
|
case OperandType.V128: context.Assembler.Movdqu(address, value); break;
|
|
|
|
default: Debug.Assert(false); break;
|
|
}
|
|
}
|
|
|
|
private static void GenerateZeroUpper64(CodeGenContext context, Operand dest, Operand source)
|
|
{
|
|
context.Assembler.Movq(dest, source);
|
|
}
|
|
|
|
private static void GenerateZeroUpper96(CodeGenContext context, Operand dest, Operand source)
|
|
{
|
|
context.Assembler.Movq(dest, source);
|
|
context.Assembler.Pshufd(dest, dest, 0xfc);
|
|
}
|
|
|
|
[Conditional("DEBUG")]
|
|
private static void ValidateUnOp(Operand dest, Operand source)
|
|
{
|
|
EnsureSameReg (dest, source);
|
|
EnsureSameType(dest, source);
|
|
}
|
|
|
|
[Conditional("DEBUG")]
|
|
private static void ValidateBinOp(Operand dest, Operand src1, Operand src2)
|
|
{
|
|
EnsureSameReg (dest, src1);
|
|
EnsureSameType(dest, src1, src2);
|
|
}
|
|
|
|
[Conditional("DEBUG")]
|
|
private static void ValidateShift(Operand dest, Operand src1, Operand src2)
|
|
{
|
|
EnsureSameReg (dest, src1);
|
|
EnsureSameType(dest, src1);
|
|
|
|
Debug.Assert(dest.Type.IsInteger() && src2.Type == OperandType.I32);
|
|
}
|
|
|
|
private static void EnsureSameReg(Operand op1, Operand op2)
|
|
{
|
|
if (!op1.Type.IsInteger() && HardwareCapabilities.SupportsVexEncoding)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Debug.Assert(op1.Kind == OperandKind.Register || op1.Kind == OperandKind.Memory);
|
|
Debug.Assert(op1.Kind == op2.Kind);
|
|
Debug.Assert(op1.Value == op2.Value);
|
|
}
|
|
|
|
private static void EnsureSameType(Operand op1, Operand op2)
|
|
{
|
|
Debug.Assert(op1.Type == op2.Type);
|
|
}
|
|
|
|
private static void EnsureSameType(Operand op1, Operand op2, Operand op3)
|
|
{
|
|
Debug.Assert(op1.Type == op2.Type);
|
|
Debug.Assert(op1.Type == op3.Type);
|
|
}
|
|
|
|
private static void EnsureSameType(Operand op1, Operand op2, Operand op3, Operand op4)
|
|
{
|
|
Debug.Assert(op1.Type == op2.Type);
|
|
Debug.Assert(op1.Type == op3.Type);
|
|
Debug.Assert(op1.Type == op4.Type);
|
|
}
|
|
|
|
private static UnwindInfo WritePrologue(CodeGenContext context)
|
|
{
|
|
List<UnwindPushEntry> pushEntries = new List<UnwindPushEntry>();
|
|
|
|
Operand rsp = Register(X86Register.Rsp);
|
|
|
|
int mask = CallingConvention.GetIntCalleeSavedRegisters() & context.AllocResult.IntUsedRegisters;
|
|
|
|
while (mask != 0)
|
|
{
|
|
int bit = BitOperations.TrailingZeroCount(mask);
|
|
|
|
context.Assembler.Push(Register((X86Register)bit));
|
|
|
|
pushEntries.Add(new UnwindPushEntry(UnwindPseudoOp.PushReg, context.StreamOffset, regIndex: bit));
|
|
|
|
mask &= ~(1 << bit);
|
|
}
|
|
|
|
int reservedStackSize = context.CallArgsRegionSize + context.AllocResult.SpillRegionSize;
|
|
|
|
reservedStackSize += context.XmmSaveRegionSize;
|
|
|
|
if (reservedStackSize >= StackGuardSize)
|
|
{
|
|
GenerateInlineStackProbe(context, reservedStackSize);
|
|
}
|
|
|
|
if (reservedStackSize != 0)
|
|
{
|
|
context.Assembler.Sub(rsp, Const(reservedStackSize), OperandType.I64);
|
|
|
|
pushEntries.Add(new UnwindPushEntry(UnwindPseudoOp.AllocStack, context.StreamOffset, stackOffsetOrAllocSize: reservedStackSize));
|
|
}
|
|
|
|
int offset = reservedStackSize;
|
|
|
|
mask = CallingConvention.GetVecCalleeSavedRegisters() & context.AllocResult.VecUsedRegisters;
|
|
|
|
while (mask != 0)
|
|
{
|
|
int bit = BitOperations.TrailingZeroCount(mask);
|
|
|
|
offset -= 16;
|
|
|
|
MemoryOperand memOp = MemoryOp(OperandType.V128, rsp, null, Multiplier.x1, offset);
|
|
|
|
context.Assembler.Movdqu(memOp, Xmm((X86Register)bit));
|
|
|
|
pushEntries.Add(new UnwindPushEntry(UnwindPseudoOp.SaveXmm128, context.StreamOffset, bit, offset));
|
|
|
|
mask &= ~(1 << bit);
|
|
}
|
|
|
|
return new UnwindInfo(pushEntries.ToArray(), context.StreamOffset);
|
|
}
|
|
|
|
private static void WriteEpilogue(CodeGenContext context)
|
|
{
|
|
Operand rsp = Register(X86Register.Rsp);
|
|
|
|
int reservedStackSize = context.CallArgsRegionSize + context.AllocResult.SpillRegionSize;
|
|
|
|
reservedStackSize += context.XmmSaveRegionSize;
|
|
|
|
int offset = reservedStackSize;
|
|
|
|
int mask = CallingConvention.GetVecCalleeSavedRegisters() & context.AllocResult.VecUsedRegisters;
|
|
|
|
while (mask != 0)
|
|
{
|
|
int bit = BitOperations.TrailingZeroCount(mask);
|
|
|
|
offset -= 16;
|
|
|
|
MemoryOperand memOp = MemoryOp(OperandType.V128, rsp, null, Multiplier.x1, offset);
|
|
|
|
context.Assembler.Movdqu(Xmm((X86Register)bit), memOp);
|
|
|
|
mask &= ~(1 << bit);
|
|
}
|
|
|
|
if (reservedStackSize != 0)
|
|
{
|
|
context.Assembler.Add(rsp, Const(reservedStackSize), OperandType.I64);
|
|
}
|
|
|
|
mask = CallingConvention.GetIntCalleeSavedRegisters() & context.AllocResult.IntUsedRegisters;
|
|
|
|
while (mask != 0)
|
|
{
|
|
int bit = BitUtils.HighestBitSet(mask);
|
|
|
|
context.Assembler.Pop(Register((X86Register)bit));
|
|
|
|
mask &= ~(1 << bit);
|
|
}
|
|
}
|
|
|
|
private static void GenerateInlineStackProbe(CodeGenContext context, int size)
|
|
{
|
|
// Windows does lazy stack allocation, and there are just 2
|
|
// guard pages on the end of the stack. So, if the allocation
|
|
// size we make is greater than this guard size, we must ensure
|
|
// that the OS will map all pages that we'll use. We do that by
|
|
// doing a dummy read on those pages, forcing a page fault and
|
|
// the OS to map them. If they are already mapped, nothing happens.
|
|
const int pageMask = PageSize - 1;
|
|
|
|
size = (size + pageMask) & ~pageMask;
|
|
|
|
Operand rsp = Register(X86Register.Rsp);
|
|
Operand temp = Register(CallingConvention.GetIntReturnRegister());
|
|
|
|
for (int offset = PageSize; offset < size; offset += PageSize)
|
|
{
|
|
Operand memOp = MemoryOp(OperandType.I32, rsp, null, Multiplier.x1, -offset);
|
|
|
|
context.Assembler.Mov(temp, memOp, OperandType.I32);
|
|
}
|
|
}
|
|
|
|
private static MemoryOperand Memory(Operand operand, OperandType type)
|
|
{
|
|
if (operand.Kind == OperandKind.Memory)
|
|
{
|
|
return operand as MemoryOperand;
|
|
}
|
|
|
|
return MemoryOp(type, operand);
|
|
}
|
|
|
|
private static Operand Register(X86Register register, OperandType type = OperandType.I64)
|
|
{
|
|
return OperandHelper.Register((int)register, RegisterType.Integer, type);
|
|
}
|
|
|
|
private static Operand Xmm(X86Register register)
|
|
{
|
|
return OperandHelper.Register((int)register, RegisterType.Vector, OperandType.V128);
|
|
}
|
|
}
|
|
} |