mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-11-08 00:48:38 +00:00
8226997bc7
* Start of JIT garbage collection improvements - thread static pool for Operand, MemoryOperand, Operation - Operands and Operations are always to be constructed via their static helper classes, so they can be pooled. - removing LinkedList from Node for sources/destinations (replaced with List<>s for now, but probably could do arrays since size is bounded) - removing params constructors from Node - LinkedList<> to List<> with Clear() for Operand assignments/uses - ThreadStaticPool is very simple and basically just exists for the purpose of our specific translation allocation problem. Right now it will stay at the worst case allocation count for that thread (so far) - the pool can never shrink. - Still some cases of Operand[] that haven't been removed yet. Will need to evaluate them (eg. is there a reasonable max number of params for Calls?) * ConcurrentStack instead of ConcurrentQueue for Rejit * Optimize some parts of LSRA - BitMap now operates on 64-bit int rather than 32-bit - BitMap is now pooled in a ThreadStatic pool (within lrsa) - BitMap now is now its own iterator. Marginally speeds up iterating through the bits. - A few cases where enumerators were generated have been converted to forms that generate less garbage. - New data structure for sorting _usePositions in LiveIntervals. Much faster split, NextUseAfter, initial insertion. Random insertion is slightly slower. - That last one is WIP since you need to insert the values backwards. It would be ideal if it just flipped it for you, uncomplicating things on the caller side. * Use a static pool of thread static pools. (yes.) Prevents each execution thread creating its own lowCq pool and making me cry. * Move constant value to top, change naming convention. * Fix iteration of memory operands. * Increase max thread count. * Address Feedback
1410 lines
53 KiB
C#
1410 lines
53 KiB
C#
using ARMeilleure.CodeGen.RegisterAllocators;
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using ARMeilleure.IntermediateRepresentation;
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using ARMeilleure.Translation;
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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 static ARMeilleure.IntermediateRepresentation.OperandHelper;
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using static ARMeilleure.IntermediateRepresentation.OperationHelper;
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namespace ARMeilleure.CodeGen.X86
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{
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static class PreAllocator
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{
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public static void RunPass(CompilerContext cctx, StackAllocator stackAlloc, out int maxCallArgs)
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{
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maxCallArgs = -1;
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CallConvName callConv = CallingConvention.GetCurrentCallConv();
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Operand[] preservedArgs = new Operand[CallingConvention.GetArgumentsOnRegsCount()];
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for (BasicBlock block = cctx.Cfg.Blocks.First; block != null; block = block.ListNext)
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{
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Node nextNode;
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for (Node node = block.Operations.First; node != null; node = nextNode)
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{
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nextNode = node.ListNext;
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if (!(node is Operation operation))
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{
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continue;
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}
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HandleConstantCopy(block.Operations, node, operation);
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HandleSameDestSrc1Copy(block.Operations, node, operation);
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HandleFixedRegisterCopy(block.Operations, node, operation);
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switch (operation.Instruction)
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{
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case Instruction.Call:
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// Get the maximum number of arguments used on a call.
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// On windows, when a struct is returned from the call,
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// we also need to pass the pointer where the struct
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// should be written on the first argument.
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int argsCount = operation.SourcesCount - 1;
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if (operation.Destination != null && operation.Destination.Type == OperandType.V128)
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{
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argsCount++;
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}
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if (maxCallArgs < argsCount)
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{
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maxCallArgs = argsCount;
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}
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// Copy values to registers expected by the function
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// being called, as mandated by the ABI.
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if (callConv == CallConvName.Windows)
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{
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node = HandleCallWindowsAbi(block.Operations, stackAlloc, node, operation);
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}
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else /* if (callConv == CallConvName.SystemV) */
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{
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node = HandleCallSystemVAbi(block.Operations, node, operation);
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}
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break;
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case Instruction.ConvertToFPUI:
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HandleConvertToFPUI(block.Operations, node, operation);
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break;
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case Instruction.LoadArgument:
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if (callConv == CallConvName.Windows)
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{
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HandleLoadArgumentWindowsAbi(cctx, block.Operations, node, preservedArgs, operation);
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}
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else /* if (callConv == CallConvName.SystemV) */
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{
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HandleLoadArgumentSystemVAbi(cctx, block.Operations, node, preservedArgs, operation);
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}
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break;
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case Instruction.Negate:
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if (!operation.GetSource(0).Type.IsInteger())
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{
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node = HandleNegate(block.Operations, node, operation);
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}
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break;
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case Instruction.Return:
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if (callConv == CallConvName.Windows)
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{
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HandleReturnWindowsAbi(cctx, block.Operations, node, preservedArgs, operation);
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}
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else /* if (callConv == CallConvName.SystemV) */
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{
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HandleReturnSystemVAbi(block.Operations, node, operation);
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}
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break;
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case Instruction.Tailcall:
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if (callConv == CallConvName.Windows)
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{
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HandleTailcallWindowsAbi(block.Operations, stackAlloc, node, operation);
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}
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else
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{
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HandleTailcallSystemVAbi(block.Operations, stackAlloc, node, operation);
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}
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break;
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case Instruction.VectorInsert8:
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if (!HardwareCapabilities.SupportsSse41)
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{
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node = HandleVectorInsert8(block.Operations, node, operation);
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}
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break;
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}
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}
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}
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}
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private static void HandleConstantCopy(IntrusiveList<Node> nodes, Node node, Operation operation)
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{
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if (operation.SourcesCount == 0 || IsIntrinsic(operation.Instruction))
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{
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return;
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}
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Instruction inst = operation.Instruction;
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Operand src1 = operation.GetSource(0);
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Operand src2;
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if (src1.Kind == OperandKind.Constant)
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{
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if (!src1.Type.IsInteger())
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{
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// Handle non-integer types (FP32, FP64 and V128).
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// For instructions without an immediate operand, we do the following:
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// - Insert a copy with the constant value (as integer) to a GPR.
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// - Insert a copy from the GPR to a XMM register.
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// - Replace the constant use with the XMM register.
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src1 = AddXmmCopy(nodes, node, src1);
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operation.SetSource(0, src1);
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}
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else if (!HasConstSrc1(inst))
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{
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// Handle integer types.
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// Most ALU instructions accepts a 32-bits immediate on the second operand.
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// We need to ensure the following:
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// - If the constant is on operand 1, we need to move it.
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// -- But first, we try to swap operand 1 and 2 if the instruction is commutative.
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// -- Doing so may allow us to encode the constant as operand 2 and avoid a copy.
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// - If the constant is on operand 2, we check if the instruction supports it,
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// if not, we also add a copy. 64-bits constants are usually not supported.
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if (IsCommutative(inst))
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{
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src2 = operation.GetSource(1);
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Operand temp = src1;
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src1 = src2;
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src2 = temp;
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operation.SetSource(0, src1);
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operation.SetSource(1, src2);
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}
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if (src1.Kind == OperandKind.Constant)
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{
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src1 = AddCopy(nodes, node, src1);
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operation.SetSource(0, src1);
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}
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}
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}
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if (operation.SourcesCount < 2)
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{
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return;
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}
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src2 = operation.GetSource(1);
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if (src2.Kind == OperandKind.Constant)
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{
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if (!src2.Type.IsInteger())
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{
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src2 = AddXmmCopy(nodes, node, src2);
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operation.SetSource(1, src2);
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}
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else if (!HasConstSrc2(inst) || CodeGenCommon.IsLongConst(src2))
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{
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src2 = AddCopy(nodes, node, src2);
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operation.SetSource(1, src2);
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}
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}
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}
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private static Node HandleFixedRegisterCopy(IntrusiveList<Node> nodes, Node node, Operation operation)
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{
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Operand dest = operation.Destination;
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switch (operation.Instruction)
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{
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case Instruction.CompareAndSwap:
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{
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OperandType type = operation.GetSource(1).Type;
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if (type == OperandType.V128)
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{
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// Handle the many restrictions of the compare and exchange (16 bytes) instruction:
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// - The expected value should be in RDX:RAX.
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// - The new value to be written should be in RCX:RBX.
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// - The value at the memory location is loaded to RDX:RAX.
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void SplitOperand(Operand source, Operand lr, Operand hr)
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{
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nodes.AddBefore(node, Operation(Instruction.VectorExtract, lr, source, Const(0)));
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nodes.AddBefore(node, Operation(Instruction.VectorExtract, hr, source, Const(1)));
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}
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Operand rax = Gpr(X86Register.Rax, OperandType.I64);
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Operand rbx = Gpr(X86Register.Rbx, OperandType.I64);
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Operand rcx = Gpr(X86Register.Rcx, OperandType.I64);
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Operand rdx = Gpr(X86Register.Rdx, OperandType.I64);
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SplitOperand(operation.GetSource(1), rax, rdx);
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SplitOperand(operation.GetSource(2), rbx, rcx);
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node = nodes.AddAfter(node, Operation(Instruction.VectorCreateScalar, dest, rax));
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node = nodes.AddAfter(node, Operation(Instruction.VectorInsert, dest, dest, rdx, Const(1)));
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operation.SetDestinations(new Operand[] { rdx, rax });
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operation.SetSources(new Operand[] { operation.GetSource(0), rdx, rax, rcx, rbx });
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}
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else
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{
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// Handle the many restrictions of the compare and exchange (32/64) instruction:
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// - The expected value should be in (E/R)AX.
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// - The value at the memory location is loaded to (E/R)AX.
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Operand expected = operation.GetSource(1);
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Operand rax = Gpr(X86Register.Rax, expected.Type);
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nodes.AddBefore(node, Operation(Instruction.Copy, rax, expected));
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operation.SetSources(new Operand[] { operation.GetSource(0), rax, operation.GetSource(2) });
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node = nodes.AddAfter(node, Operation(Instruction.Copy, dest, rax));
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operation.Destination = rax;
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}
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break;
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}
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case Instruction.CpuId:
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{
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// Handle the many restrictions of the CPU Id instruction:
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// - EAX controls the information returned by this instruction.
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// - When EAX is 1, feature information is returned.
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// - The information is written to registers EAX, EBX, ECX and EDX.
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Debug.Assert(dest.Type == OperandType.I64);
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Operand eax = Gpr(X86Register.Rax, OperandType.I32);
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Operand ebx = Gpr(X86Register.Rbx, OperandType.I32);
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Operand ecx = Gpr(X86Register.Rcx, OperandType.I32);
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Operand edx = Gpr(X86Register.Rdx, OperandType.I32);
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// Value 0x01 = Version, family and feature information.
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nodes.AddBefore(node, Operation(Instruction.Copy, eax, Const(1)));
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// Copy results to the destination register.
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// The values are split into 2 32-bits registers, we merge them
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// into a single 64-bits register.
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Operand rcx = Gpr(X86Register.Rcx, OperandType.I64);
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node = nodes.AddAfter(node, Operation(Instruction.ZeroExtend32, dest, edx));
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node = nodes.AddAfter(node, Operation(Instruction.ShiftLeft, dest, dest, Const(32)));
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node = nodes.AddAfter(node, Operation(Instruction.BitwiseOr, dest, dest, rcx));
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operation.SetDestinations(new Operand[] { eax, ebx, ecx, edx });
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operation.SetSources(new Operand[] { eax });
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break;
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}
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case Instruction.Divide:
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case Instruction.DivideUI:
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{
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// Handle the many restrictions of the division instructions:
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// - The dividend is always in RDX:RAX.
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// - The result is always in RAX.
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// - Additionally it also writes the remainder in RDX.
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if (dest.Type.IsInteger())
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{
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Operand src1 = operation.GetSource(0);
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Operand rax = Gpr(X86Register.Rax, src1.Type);
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Operand rdx = Gpr(X86Register.Rdx, src1.Type);
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nodes.AddBefore(node, Operation(Instruction.Copy, rax, src1));
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nodes.AddBefore(node, Operation(Instruction.Clobber, rdx));
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node = nodes.AddAfter(node, Operation(Instruction.Copy, dest, rax));
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operation.SetDestinations(new Operand[] { rdx, rax });
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operation.SetSources(new Operand[] { rdx, rax, operation.GetSource(1) });
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operation.Destination = rax;
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}
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break;
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}
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case Instruction.Extended:
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{
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IntrinsicOperation intrinOp = (IntrinsicOperation)operation;
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// BLENDVPD, BLENDVPS, PBLENDVB last operand is always implied to be XMM0 when VEX is not supported.
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if ((intrinOp.Intrinsic == Intrinsic.X86Blendvpd ||
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intrinOp.Intrinsic == Intrinsic.X86Blendvps ||
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intrinOp.Intrinsic == Intrinsic.X86Pblendvb) &&
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!HardwareCapabilities.SupportsVexEncoding)
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{
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Operand xmm0 = Xmm(X86Register.Xmm0, OperandType.V128);
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nodes.AddBefore(node, Operation(Instruction.Copy, xmm0, operation.GetSource(2)));
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operation.SetSource(2, xmm0);
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}
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break;
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}
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case Instruction.Multiply64HighSI:
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case Instruction.Multiply64HighUI:
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{
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// Handle the many restrictions of the i64 * i64 = i128 multiply instructions:
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// - The multiplicand is always in RAX.
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// - The lower 64-bits of the result is always in RAX.
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// - The higher 64-bits of the result is always in RDX.
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Operand src1 = operation.GetSource(0);
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Operand rax = Gpr(X86Register.Rax, src1.Type);
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Operand rdx = Gpr(X86Register.Rdx, src1.Type);
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nodes.AddBefore(node, Operation(Instruction.Copy, rax, src1));
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operation.SetSource(0, rax);
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node = nodes.AddAfter(node, Operation(Instruction.Copy, dest, rdx));
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operation.SetDestinations(new Operand[] { rdx, rax });
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break;
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}
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case Instruction.RotateRight:
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case Instruction.ShiftLeft:
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case Instruction.ShiftRightSI:
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case Instruction.ShiftRightUI:
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{
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// The shift register is always implied to be CL (low 8-bits of RCX or ECX).
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if (operation.GetSource(1).Kind == OperandKind.LocalVariable)
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{
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Operand rcx = Gpr(X86Register.Rcx, OperandType.I32);
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nodes.AddBefore(node, Operation(Instruction.Copy, rcx, operation.GetSource(1)));
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operation.SetSource(1, rcx);
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}
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break;
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}
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}
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return node;
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}
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private static Node HandleSameDestSrc1Copy(IntrusiveList<Node> nodes, Node node, Operation operation)
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{
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if (operation.Destination == null || operation.SourcesCount == 0)
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{
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return node;
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}
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Instruction inst = operation.Instruction;
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Operand dest = operation.Destination;
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Operand src1 = operation.GetSource(0);
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// The multiply instruction (that maps to IMUL) is somewhat special, it has
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// a three operand form where the second source is a immediate value.
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bool threeOperandForm = inst == Instruction.Multiply && operation.GetSource(1).Kind == OperandKind.Constant;
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if (IsSameOperandDestSrc1(operation) && src1.Kind == OperandKind.LocalVariable && !threeOperandForm)
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{
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bool useNewLocal = false;
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for (int srcIndex = 1; srcIndex < operation.SourcesCount; srcIndex++)
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{
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if (operation.GetSource(srcIndex) == dest)
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{
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useNewLocal = true;
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break;
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}
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}
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if (useNewLocal)
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{
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// Dest is being used as some source already, we need to use a new
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// local to store the temporary value, otherwise the value on dest
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// local would be overwritten.
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Operand temp = Local(dest.Type);
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nodes.AddBefore(node, Operation(Instruction.Copy, temp, src1));
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operation.SetSource(0, temp);
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node = nodes.AddAfter(node, Operation(Instruction.Copy, dest, temp));
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operation.Destination = temp;
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}
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else
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{
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nodes.AddBefore(node, Operation(Instruction.Copy, dest, src1));
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operation.SetSource(0, dest);
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}
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}
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else if (inst == Instruction.ConditionalSelect)
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{
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Operand src2 = operation.GetSource(1);
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Operand src3 = operation.GetSource(2);
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if (src1 == dest || src2 == dest)
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{
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Operand temp = Local(dest.Type);
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nodes.AddBefore(node, Operation(Instruction.Copy, temp, src3));
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operation.SetSource(2, temp);
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node = nodes.AddAfter(node, Operation(Instruction.Copy, dest, temp));
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operation.Destination = temp;
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}
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else
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{
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nodes.AddBefore(node, Operation(Instruction.Copy, dest, src3));
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operation.SetSource(2, dest);
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}
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}
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return node;
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}
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private static Node HandleConvertToFPUI(IntrusiveList<Node> nodes, Node node, Operation operation)
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{
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// Unsigned integer to FP conversions are not supported on X86.
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// We need to turn them into signed integer to FP conversions, and
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// adjust the final result.
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Operand dest = operation.Destination;
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Operand source = operation.GetSource(0);
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Debug.Assert(source.Type.IsInteger(), $"Invalid source type \"{source.Type}\".");
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Node currentNode = node;
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if (source.Type == OperandType.I32)
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{
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// For 32-bits integers, we can just zero-extend to 64-bits,
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// and then use the 64-bits signed conversion instructions.
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Operand zex = Local(OperandType.I64);
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node = nodes.AddAfter(node, Operation(Instruction.ZeroExtend32, zex, source));
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node = nodes.AddAfter(node, Operation(Instruction.ConvertToFP, dest, zex));
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}
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else /* if (source.Type == OperandType.I64) */
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{
|
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// For 64-bits integers, we need to do the following:
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// - Ensure that the integer has the most significant bit clear.
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// -- This can be done by shifting the value right by 1, that is, dividing by 2.
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// -- The least significant bit is lost in this case though.
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// - We can then convert the shifted value with a signed integer instruction.
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// - The result still needs to be corrected after that.
|
|
// -- First, we need to multiply the result by 2, as we divided it by 2 before.
|
|
// --- This can be done efficiently by adding the result to itself.
|
|
// -- Then, we need to add the least significant bit that was shifted out.
|
|
// --- We can convert the least significant bit to float, and add it to the result.
|
|
Operand lsb = Local(OperandType.I64);
|
|
Operand half = Local(OperandType.I64);
|
|
|
|
Operand lsbF = Local(dest.Type);
|
|
|
|
node = nodes.AddAfter(node, Operation(Instruction.Copy, lsb, source));
|
|
node = nodes.AddAfter(node, Operation(Instruction.Copy, half, source));
|
|
|
|
node = nodes.AddAfter(node, Operation(Instruction.BitwiseAnd, lsb, lsb, Const(1L)));
|
|
node = nodes.AddAfter(node, Operation(Instruction.ShiftRightUI, half, half, Const(1)));
|
|
|
|
node = nodes.AddAfter(node, Operation(Instruction.ConvertToFP, lsbF, lsb));
|
|
node = nodes.AddAfter(node, Operation(Instruction.ConvertToFP, dest, half));
|
|
|
|
node = nodes.AddAfter(node, Operation(Instruction.Add, dest, dest, dest));
|
|
node = nodes.AddAfter(node, Operation(Instruction.Add, dest, dest, lsbF));
|
|
}
|
|
|
|
Delete(nodes, currentNode, operation);
|
|
|
|
return node;
|
|
}
|
|
|
|
private static Node HandleNegate(IntrusiveList<Node> nodes, Node node, Operation operation)
|
|
{
|
|
// There's no SSE FP negate instruction, so we need to transform that into
|
|
// a XOR of the value to be negated with a mask with the highest bit set.
|
|
// This also produces -0 for a negation of the value 0.
|
|
Operand dest = operation.Destination;
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(dest.Type == OperandType.FP32 ||
|
|
dest.Type == OperandType.FP64, $"Invalid destination type \"{dest.Type}\".");
|
|
|
|
Node currentNode = node;
|
|
|
|
Operand res = Local(dest.Type);
|
|
|
|
node = nodes.AddAfter(node, Operation(Instruction.VectorOne, res));
|
|
|
|
if (dest.Type == OperandType.FP32)
|
|
{
|
|
node = nodes.AddAfter(node, new IntrinsicOperation(Intrinsic.X86Pslld, res, res, Const(31)));
|
|
}
|
|
else /* if (dest.Type == OperandType.FP64) */
|
|
{
|
|
node = nodes.AddAfter(node, new IntrinsicOperation(Intrinsic.X86Psllq, res, res, Const(63)));
|
|
}
|
|
|
|
node = nodes.AddAfter(node, new IntrinsicOperation(Intrinsic.X86Xorps, res, res, source));
|
|
|
|
node = nodes.AddAfter(node, Operation(Instruction.Copy, dest, res));
|
|
|
|
Delete(nodes, currentNode, operation);
|
|
|
|
return node;
|
|
}
|
|
|
|
private static Node HandleVectorInsert8(IntrusiveList<Node> nodes, Node node, Operation operation)
|
|
{
|
|
// Handle vector insertion, when SSE 4.1 is not supported.
|
|
Operand dest = operation.Destination;
|
|
Operand src1 = operation.GetSource(0); // Vector
|
|
Operand src2 = operation.GetSource(1); // Value
|
|
Operand src3 = operation.GetSource(2); // Index
|
|
|
|
Debug.Assert(src3.Kind == OperandKind.Constant);
|
|
|
|
byte index = src3.AsByte();
|
|
|
|
Debug.Assert(index < 16);
|
|
|
|
Node currentNode = node;
|
|
|
|
Operand temp1 = Local(OperandType.I32);
|
|
Operand temp2 = Local(OperandType.I32);
|
|
|
|
node = nodes.AddAfter(node, Operation(Instruction.Copy, temp2, src2));
|
|
|
|
Operation vextOp = Operation(Instruction.VectorExtract16, temp1, src1, Const(index >> 1));
|
|
|
|
node = nodes.AddAfter(node, vextOp);
|
|
|
|
if ((index & 1) != 0)
|
|
{
|
|
node = nodes.AddAfter(node, Operation(Instruction.ZeroExtend8, temp1, temp1));
|
|
node = nodes.AddAfter(node, Operation(Instruction.ShiftLeft, temp2, temp2, Const(8)));
|
|
node = nodes.AddAfter(node, Operation(Instruction.BitwiseOr, temp1, temp1, temp2));
|
|
}
|
|
else
|
|
{
|
|
node = nodes.AddAfter(node, Operation(Instruction.ZeroExtend8, temp2, temp2));
|
|
node = nodes.AddAfter(node, Operation(Instruction.BitwiseAnd, temp1, temp1, Const(0xff00)));
|
|
node = nodes.AddAfter(node, Operation(Instruction.BitwiseOr, temp1, temp1, temp2));
|
|
}
|
|
|
|
Operation vinsOp = Operation(Instruction.VectorInsert16, dest, src1, temp1, Const(index >> 1));
|
|
|
|
node = nodes.AddAfter(node, vinsOp);
|
|
|
|
Delete(nodes, currentNode, operation);
|
|
|
|
return node;
|
|
}
|
|
|
|
private static Node HandleCallWindowsAbi(IntrusiveList<Node> nodes, StackAllocator stackAlloc, Node node, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
|
|
// Handle struct arguments.
|
|
int retArgs = 0;
|
|
|
|
int stackAllocOffset = 0;
|
|
|
|
int AllocateOnStack(int size)
|
|
{
|
|
// We assume that the stack allocator is initially empty (TotalSize = 0).
|
|
// Taking that into account, we can reuse the space allocated for other
|
|
// calls by keeping track of our own allocated size (stackAllocOffset).
|
|
// If the space allocated is not big enough, then we just expand it.
|
|
int offset = stackAllocOffset;
|
|
|
|
if (stackAllocOffset + size > stackAlloc.TotalSize)
|
|
{
|
|
stackAlloc.Allocate((stackAllocOffset + size) - stackAlloc.TotalSize);
|
|
}
|
|
|
|
stackAllocOffset += size;
|
|
|
|
return offset;
|
|
}
|
|
|
|
Operand arg0Reg = null;
|
|
|
|
if (dest != null && dest.Type == OperandType.V128)
|
|
{
|
|
int stackOffset = AllocateOnStack(dest.Type.GetSizeInBytes());
|
|
|
|
arg0Reg = Gpr(CallingConvention.GetIntArgumentRegister(0), OperandType.I64);
|
|
|
|
Operation allocOp = Operation(Instruction.StackAlloc, arg0Reg, Const(stackOffset));
|
|
|
|
nodes.AddBefore(node, allocOp);
|
|
|
|
retArgs = 1;
|
|
}
|
|
|
|
int argsCount = operation.SourcesCount - 1;
|
|
|
|
int maxArgs = CallingConvention.GetArgumentsOnRegsCount() - retArgs;
|
|
|
|
if (argsCount > maxArgs)
|
|
{
|
|
argsCount = maxArgs;
|
|
}
|
|
|
|
Operand[] sources = new Operand[1 + retArgs + argsCount];
|
|
|
|
sources[0] = operation.GetSource(0);
|
|
|
|
if (arg0Reg != null)
|
|
{
|
|
sources[1] = arg0Reg;
|
|
}
|
|
|
|
for (int index = 1; index < operation.SourcesCount; index++)
|
|
{
|
|
Operand source = operation.GetSource(index);
|
|
|
|
if (source.Type == OperandType.V128)
|
|
{
|
|
Operand stackAddr = Local(OperandType.I64);
|
|
|
|
int stackOffset = AllocateOnStack(source.Type.GetSizeInBytes());
|
|
|
|
nodes.AddBefore(node, Operation(Instruction.StackAlloc, stackAddr, Const(stackOffset)));
|
|
|
|
Operation storeOp = Operation(Instruction.Store, null, stackAddr, source);
|
|
|
|
HandleConstantCopy(nodes, nodes.AddBefore(node, storeOp), storeOp);
|
|
|
|
operation.SetSource(index, stackAddr);
|
|
}
|
|
}
|
|
|
|
// Handle arguments passed on registers.
|
|
for (int index = 0; index < argsCount; index++)
|
|
{
|
|
Operand source = operation.GetSource(index + 1);
|
|
|
|
Operand argReg;
|
|
|
|
int argIndex = index + retArgs;
|
|
|
|
if (source.Type.IsInteger())
|
|
{
|
|
argReg = Gpr(CallingConvention.GetIntArgumentRegister(argIndex), source.Type);
|
|
}
|
|
else
|
|
{
|
|
argReg = Xmm(CallingConvention.GetVecArgumentRegister(argIndex), source.Type);
|
|
}
|
|
|
|
Operation copyOp = Operation(Instruction.Copy, argReg, source);
|
|
|
|
HandleConstantCopy(nodes, nodes.AddBefore(node, copyOp), copyOp);
|
|
|
|
sources[1 + retArgs + index] = argReg;
|
|
}
|
|
|
|
// The remaining arguments (those that are not passed on registers)
|
|
// should be passed on the stack, we write them to the stack with "SpillArg".
|
|
for (int index = argsCount; index < operation.SourcesCount - 1; index++)
|
|
{
|
|
Operand source = operation.GetSource(index + 1);
|
|
|
|
Operand offset = Const((index + retArgs) * 8);
|
|
|
|
Operation spillOp = Operation(Instruction.SpillArg, null, offset, source);
|
|
|
|
HandleConstantCopy(nodes, nodes.AddBefore(node, spillOp), spillOp);
|
|
}
|
|
|
|
if (dest != null)
|
|
{
|
|
if (dest.Type == OperandType.V128)
|
|
{
|
|
Operand retValueAddr = Local(OperandType.I64);
|
|
|
|
nodes.AddBefore(node, Operation(Instruction.Copy, retValueAddr, arg0Reg));
|
|
|
|
Operation loadOp = Operation(Instruction.Load, dest, retValueAddr);
|
|
|
|
node = nodes.AddAfter(node, loadOp);
|
|
|
|
operation.Destination = null;
|
|
}
|
|
else
|
|
{
|
|
Operand retReg = dest.Type.IsInteger()
|
|
? Gpr(CallingConvention.GetIntReturnRegister(), dest.Type)
|
|
: Xmm(CallingConvention.GetVecReturnRegister(), dest.Type);
|
|
|
|
Operation copyOp = Operation(Instruction.Copy, dest, retReg);
|
|
|
|
node = nodes.AddAfter(node, copyOp);
|
|
|
|
operation.Destination = retReg;
|
|
}
|
|
}
|
|
|
|
operation.SetSources(sources);
|
|
|
|
return node;
|
|
}
|
|
|
|
private static Node HandleCallSystemVAbi(IntrusiveList<Node> nodes, Node node, Operation operation)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
|
|
List<Operand> sources = new List<Operand>
|
|
{
|
|
operation.GetSource(0)
|
|
};
|
|
|
|
int argsCount = operation.SourcesCount - 1;
|
|
|
|
int intMax = CallingConvention.GetIntArgumentsOnRegsCount();
|
|
int vecMax = CallingConvention.GetVecArgumentsOnRegsCount();
|
|
|
|
int intCount = 0;
|
|
int vecCount = 0;
|
|
|
|
int stackOffset = 0;
|
|
|
|
for (int index = 0; index < argsCount; index++)
|
|
{
|
|
Operand source = operation.GetSource(index + 1);
|
|
|
|
bool passOnReg;
|
|
|
|
if (source.Type.IsInteger())
|
|
{
|
|
passOnReg = intCount < intMax;
|
|
}
|
|
else if (source.Type == OperandType.V128)
|
|
{
|
|
passOnReg = intCount + 1 < intMax;
|
|
}
|
|
else
|
|
{
|
|
passOnReg = vecCount < vecMax;
|
|
}
|
|
|
|
if (source.Type == OperandType.V128 && passOnReg)
|
|
{
|
|
// V128 is a struct, we pass each half on a GPR if possible.
|
|
Operand argReg = Gpr(CallingConvention.GetIntArgumentRegister(intCount++), OperandType.I64);
|
|
Operand argReg2 = Gpr(CallingConvention.GetIntArgumentRegister(intCount++), OperandType.I64);
|
|
|
|
nodes.AddBefore(node, Operation(Instruction.VectorExtract, argReg, source, Const(0)));
|
|
nodes.AddBefore(node, Operation(Instruction.VectorExtract, argReg2, source, Const(1)));
|
|
|
|
continue;
|
|
}
|
|
|
|
if (passOnReg)
|
|
{
|
|
Operand argReg = source.Type.IsInteger()
|
|
? Gpr(CallingConvention.GetIntArgumentRegister(intCount++), source.Type)
|
|
: Xmm(CallingConvention.GetVecArgumentRegister(vecCount++), source.Type);
|
|
|
|
Operation copyOp = Operation(Instruction.Copy, argReg, source);
|
|
|
|
HandleConstantCopy(nodes, nodes.AddBefore(node, copyOp), copyOp);
|
|
|
|
sources.Add(argReg);
|
|
}
|
|
else
|
|
{
|
|
Operand offset = Const(stackOffset);
|
|
|
|
Operation spillOp = Operation(Instruction.SpillArg, null, offset, source);
|
|
|
|
HandleConstantCopy(nodes, nodes.AddBefore(node, spillOp), spillOp);
|
|
|
|
stackOffset += source.Type.GetSizeInBytes();
|
|
}
|
|
}
|
|
|
|
if (dest != null)
|
|
{
|
|
if (dest.Type == OperandType.V128)
|
|
{
|
|
Operand retLReg = Gpr(CallingConvention.GetIntReturnRegister(), OperandType.I64);
|
|
Operand retHReg = Gpr(CallingConvention.GetIntReturnRegisterHigh(), OperandType.I64);
|
|
|
|
node = nodes.AddAfter(node, Operation(Instruction.VectorCreateScalar, dest, retLReg));
|
|
node = nodes.AddAfter(node, Operation(Instruction.VectorInsert, dest, dest, retHReg, Const(1)));
|
|
|
|
operation.Destination = null;
|
|
}
|
|
else
|
|
{
|
|
Operand retReg = dest.Type.IsInteger()
|
|
? Gpr(CallingConvention.GetIntReturnRegister(), dest.Type)
|
|
: Xmm(CallingConvention.GetVecReturnRegister(), dest.Type);
|
|
|
|
Operation copyOp = Operation(Instruction.Copy, dest, retReg);
|
|
|
|
node = nodes.AddAfter(node, copyOp);
|
|
|
|
operation.Destination = retReg;
|
|
}
|
|
}
|
|
|
|
operation.SetSources(sources.ToArray());
|
|
|
|
return node;
|
|
}
|
|
|
|
private static void HandleTailcallSystemVAbi(IntrusiveList<Node> nodes, StackAllocator stackAlloc, Node node, Operation operation)
|
|
{
|
|
List<Operand> sources = new List<Operand>();
|
|
|
|
sources.Add(operation.GetSource(0));
|
|
|
|
int argsCount = operation.SourcesCount - 1;
|
|
|
|
int intMax = CallingConvention.GetIntArgumentsOnRegsCount();
|
|
int vecMax = CallingConvention.GetVecArgumentsOnRegsCount();
|
|
|
|
int intCount = 0;
|
|
int vecCount = 0;
|
|
|
|
// Handle arguments passed on registers.
|
|
for (int index = 0; index < argsCount; index++)
|
|
{
|
|
Operand source = operation.GetSource(1 + index);
|
|
|
|
bool passOnReg;
|
|
|
|
if (source.Type.IsInteger())
|
|
{
|
|
passOnReg = intCount + 1 < intMax;
|
|
}
|
|
else
|
|
{
|
|
passOnReg = vecCount < vecMax;
|
|
}
|
|
|
|
if (source.Type == OperandType.V128 && passOnReg)
|
|
{
|
|
// V128 is a struct, we pass each half on a GPR if possible.
|
|
Operand argReg = Gpr(CallingConvention.GetIntArgumentRegister(intCount++), OperandType.I64);
|
|
Operand argReg2 = Gpr(CallingConvention.GetIntArgumentRegister(intCount++), OperandType.I64);
|
|
|
|
nodes.AddBefore(node, Operation(Instruction.VectorExtract, argReg, source, Const(0)));
|
|
nodes.AddBefore(node, Operation(Instruction.VectorExtract, argReg2, source, Const(1)));
|
|
|
|
continue;
|
|
}
|
|
|
|
if (passOnReg)
|
|
{
|
|
Operand argReg = source.Type.IsInteger()
|
|
? Gpr(CallingConvention.GetIntArgumentRegister(intCount++), source.Type)
|
|
: Xmm(CallingConvention.GetVecArgumentRegister(vecCount++), source.Type);
|
|
|
|
Operation copyOp = Operation(Instruction.Copy, argReg, source);
|
|
|
|
HandleConstantCopy(nodes, nodes.AddBefore(node, copyOp), copyOp);
|
|
|
|
sources.Add(argReg);
|
|
}
|
|
else
|
|
{
|
|
throw new NotImplementedException("Spilling is not currently supported for tail calls. (too many arguments)");
|
|
}
|
|
}
|
|
|
|
// The target address must be on the return registers, since we
|
|
// don't return anything and it is guaranteed to not be a
|
|
// callee saved register (which would be trashed on the epilogue).
|
|
Operand retReg = Gpr(CallingConvention.GetIntReturnRegister(), OperandType.I64);
|
|
|
|
Operation addrCopyOp = Operation(Instruction.Copy, retReg, operation.GetSource(0));
|
|
|
|
nodes.AddBefore(node, addrCopyOp);
|
|
|
|
sources[0] = retReg;
|
|
|
|
operation.SetSources(sources.ToArray());
|
|
}
|
|
|
|
private static void HandleTailcallWindowsAbi(IntrusiveList<Node> nodes, StackAllocator stackAlloc, Node node, Operation operation)
|
|
{
|
|
int argsCount = operation.SourcesCount - 1;
|
|
|
|
int maxArgs = CallingConvention.GetArgumentsOnRegsCount();
|
|
|
|
if (argsCount > maxArgs)
|
|
{
|
|
throw new NotImplementedException("Spilling is not currently supported for tail calls. (too many arguments)");
|
|
}
|
|
|
|
Operand[] sources = new Operand[1 + argsCount];
|
|
|
|
// Handle arguments passed on registers.
|
|
for (int index = 0; index < argsCount; index++)
|
|
{
|
|
Operand source = operation.GetSource(1 + index);
|
|
|
|
Operand argReg = source.Type.IsInteger()
|
|
? Gpr(CallingConvention.GetIntArgumentRegister(index), source.Type)
|
|
: Xmm(CallingConvention.GetVecArgumentRegister(index), source.Type);
|
|
|
|
Operation copyOp = Operation(Instruction.Copy, argReg, source);
|
|
|
|
HandleConstantCopy(nodes, nodes.AddBefore(node, copyOp), copyOp);
|
|
|
|
sources[1 + index] = argReg;
|
|
}
|
|
|
|
// The target address must be on the return registers, since we
|
|
// don't return anything and it is guaranteed to not be a
|
|
// callee saved register (which would be trashed on the epilogue).
|
|
Operand retReg = Gpr(CallingConvention.GetIntReturnRegister(), OperandType.I64);
|
|
|
|
Operation addrCopyOp = Operation(Instruction.Copy, retReg, operation.GetSource(0));
|
|
|
|
nodes.AddBefore(node, addrCopyOp);
|
|
|
|
sources[0] = retReg;
|
|
|
|
operation.SetSources(sources);
|
|
}
|
|
|
|
private static void HandleLoadArgumentWindowsAbi(
|
|
CompilerContext cctx,
|
|
IntrusiveList<Node> nodes,
|
|
Node node,
|
|
Operand[] preservedArgs,
|
|
Operation operation)
|
|
{
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(source.Kind == OperandKind.Constant, "Non-constant LoadArgument source kind.");
|
|
|
|
int retArgs = cctx.FuncReturnType == OperandType.V128 ? 1 : 0;
|
|
|
|
int index = source.AsInt32() + retArgs;
|
|
|
|
if (index < CallingConvention.GetArgumentsOnRegsCount())
|
|
{
|
|
Operand dest = operation.Destination;
|
|
|
|
if (preservedArgs[index] == null)
|
|
{
|
|
Operand argReg, pArg;
|
|
|
|
if (dest.Type.IsInteger())
|
|
{
|
|
argReg = Gpr(CallingConvention.GetIntArgumentRegister(index), dest.Type);
|
|
|
|
pArg = Local(dest.Type);
|
|
}
|
|
else if (dest.Type == OperandType.V128)
|
|
{
|
|
argReg = Gpr(CallingConvention.GetIntArgumentRegister(index), OperandType.I64);
|
|
|
|
pArg = Local(OperandType.I64);
|
|
}
|
|
else
|
|
{
|
|
argReg = Xmm(CallingConvention.GetVecArgumentRegister(index), dest.Type);
|
|
|
|
pArg = Local(dest.Type);
|
|
}
|
|
|
|
Operation copyOp = Operation(Instruction.Copy, pArg, argReg);
|
|
|
|
cctx.Cfg.Entry.Operations.AddFirst(copyOp);
|
|
|
|
preservedArgs[index] = pArg;
|
|
}
|
|
|
|
Operation argCopyOp = Operation(dest.Type == OperandType.V128
|
|
? Instruction.Load
|
|
: Instruction.Copy, dest, preservedArgs[index]);
|
|
|
|
nodes.AddBefore(node, argCopyOp);
|
|
|
|
Delete(nodes, node, operation);
|
|
}
|
|
else
|
|
{
|
|
// TODO: Pass on stack.
|
|
}
|
|
}
|
|
|
|
private static void HandleLoadArgumentSystemVAbi(
|
|
CompilerContext cctx,
|
|
IntrusiveList<Node> nodes,
|
|
Node node,
|
|
Operand[] preservedArgs,
|
|
Operation operation)
|
|
{
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Debug.Assert(source.Kind == OperandKind.Constant, "Non-constant LoadArgument source kind.");
|
|
|
|
int index = source.AsInt32();
|
|
|
|
int intCount = 0;
|
|
int vecCount = 0;
|
|
|
|
for (int cIndex = 0; cIndex < index; cIndex++)
|
|
{
|
|
OperandType argType = cctx.FuncArgTypes[cIndex];
|
|
|
|
if (argType.IsInteger())
|
|
{
|
|
intCount++;
|
|
}
|
|
else if (argType == OperandType.V128)
|
|
{
|
|
intCount += 2;
|
|
}
|
|
else
|
|
{
|
|
vecCount++;
|
|
}
|
|
}
|
|
|
|
bool passOnReg;
|
|
|
|
if (source.Type.IsInteger())
|
|
{
|
|
passOnReg = intCount < CallingConvention.GetIntArgumentsOnRegsCount();
|
|
}
|
|
else if (source.Type == OperandType.V128)
|
|
{
|
|
passOnReg = intCount + 1 < CallingConvention.GetIntArgumentsOnRegsCount();
|
|
}
|
|
else
|
|
{
|
|
passOnReg = vecCount < CallingConvention.GetVecArgumentsOnRegsCount();
|
|
}
|
|
|
|
if (passOnReg)
|
|
{
|
|
Operand dest = operation.Destination;
|
|
|
|
if (preservedArgs[index] == null)
|
|
{
|
|
if (dest.Type == OperandType.V128)
|
|
{
|
|
// V128 is a struct, we pass each half on a GPR if possible.
|
|
Operand pArg = Local(OperandType.V128);
|
|
|
|
Operand argLReg = Gpr(CallingConvention.GetIntArgumentRegister(intCount), OperandType.I64);
|
|
Operand argHReg = Gpr(CallingConvention.GetIntArgumentRegister(intCount + 1), OperandType.I64);
|
|
|
|
Operation copyL = Operation(Instruction.VectorCreateScalar, pArg, argLReg);
|
|
Operation copyH = Operation(Instruction.VectorInsert, pArg, pArg, argHReg, Const(1));
|
|
|
|
cctx.Cfg.Entry.Operations.AddFirst(copyH);
|
|
cctx.Cfg.Entry.Operations.AddFirst(copyL);
|
|
|
|
preservedArgs[index] = pArg;
|
|
}
|
|
else
|
|
{
|
|
Operand pArg = Local(dest.Type);
|
|
|
|
Operand argReg = dest.Type.IsInteger()
|
|
? Gpr(CallingConvention.GetIntArgumentRegister(intCount), dest.Type)
|
|
: Xmm(CallingConvention.GetVecArgumentRegister(vecCount), dest.Type);
|
|
|
|
Operation copyOp = Operation(Instruction.Copy, pArg, argReg);
|
|
|
|
cctx.Cfg.Entry.Operations.AddFirst(copyOp);
|
|
|
|
preservedArgs[index] = pArg;
|
|
}
|
|
}
|
|
|
|
Operation argCopyOp = Operation(Instruction.Copy, dest, preservedArgs[index]);
|
|
|
|
nodes.AddBefore(node, argCopyOp);
|
|
|
|
Delete(nodes, node, operation);
|
|
}
|
|
else
|
|
{
|
|
// TODO: Pass on stack.
|
|
}
|
|
}
|
|
|
|
private static void HandleReturnWindowsAbi(
|
|
CompilerContext cctx,
|
|
IntrusiveList<Node> nodes,
|
|
Node node,
|
|
Operand[] preservedArgs,
|
|
Operation operation)
|
|
{
|
|
if (operation.SourcesCount == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Operand source = operation.GetSource(0);
|
|
|
|
Operand retReg;
|
|
|
|
if (source.Type.IsInteger())
|
|
{
|
|
retReg = Gpr(CallingConvention.GetIntReturnRegister(), source.Type);
|
|
}
|
|
else if (source.Type == OperandType.V128)
|
|
{
|
|
if (preservedArgs[0] == null)
|
|
{
|
|
Operand preservedArg = Local(OperandType.I64);
|
|
|
|
Operand arg0 = Gpr(CallingConvention.GetIntArgumentRegister(0), OperandType.I64);
|
|
|
|
Operation copyOp = Operation(Instruction.Copy, preservedArg, arg0);
|
|
|
|
cctx.Cfg.Entry.Operations.AddFirst(copyOp);
|
|
|
|
preservedArgs[0] = preservedArg;
|
|
}
|
|
|
|
retReg = preservedArgs[0];
|
|
}
|
|
else
|
|
{
|
|
retReg = Xmm(CallingConvention.GetVecReturnRegister(), source.Type);
|
|
}
|
|
|
|
if (source.Type == OperandType.V128)
|
|
{
|
|
Operation retStoreOp = Operation(Instruction.Store, null, retReg, source);
|
|
|
|
nodes.AddBefore(node, retStoreOp);
|
|
}
|
|
else
|
|
{
|
|
Operation retCopyOp = Operation(Instruction.Copy, retReg, source);
|
|
|
|
nodes.AddBefore(node, retCopyOp);
|
|
}
|
|
|
|
operation.SetSources(Array.Empty<Operand>());
|
|
}
|
|
|
|
private static void HandleReturnSystemVAbi(IntrusiveList<Node> nodes, Node node, Operation operation)
|
|
{
|
|
if (operation.SourcesCount == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
Operand source = operation.GetSource(0);
|
|
|
|
if (source.Type == OperandType.V128)
|
|
{
|
|
Operand retLReg = Gpr(CallingConvention.GetIntReturnRegister(), OperandType.I64);
|
|
Operand retHReg = Gpr(CallingConvention.GetIntReturnRegisterHigh(), OperandType.I64);
|
|
|
|
nodes.AddBefore(node, Operation(Instruction.VectorExtract, retLReg, source, Const(0)));
|
|
nodes.AddBefore(node, Operation(Instruction.VectorExtract, retHReg, source, Const(1)));
|
|
}
|
|
else
|
|
{
|
|
Operand retReg = source.Type.IsInteger()
|
|
? Gpr(CallingConvention.GetIntReturnRegister(), source.Type)
|
|
: Xmm(CallingConvention.GetVecReturnRegister(), source.Type);
|
|
|
|
Operation retCopyOp = Operation(Instruction.Copy, retReg, source);
|
|
|
|
nodes.AddBefore(node, retCopyOp);
|
|
}
|
|
}
|
|
|
|
private static Operand AddXmmCopy(IntrusiveList<Node> nodes, Node node, Operand source)
|
|
{
|
|
Operand temp = Local(source.Type);
|
|
|
|
Operand intConst = AddCopy(nodes, node, GetIntConst(source));
|
|
|
|
Operation copyOp = Operation(Instruction.VectorCreateScalar, temp, intConst);
|
|
|
|
nodes.AddBefore(node, copyOp);
|
|
|
|
return temp;
|
|
}
|
|
|
|
private static Operand AddCopy(IntrusiveList<Node> nodes, Node node, Operand source)
|
|
{
|
|
Operand temp = Local(source.Type);
|
|
|
|
Operation copyOp = Operation(Instruction.Copy, temp, source);
|
|
|
|
nodes.AddBefore(node, copyOp);
|
|
|
|
return temp;
|
|
}
|
|
|
|
private static Operand GetIntConst(Operand value)
|
|
{
|
|
if (value.Type == OperandType.FP32)
|
|
{
|
|
return Const(value.AsInt32());
|
|
}
|
|
else if (value.Type == OperandType.FP64)
|
|
{
|
|
return Const(value.AsInt64());
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
private static void Delete(IntrusiveList<Node> nodes, Node node, Operation operation)
|
|
{
|
|
operation.Destination = null;
|
|
|
|
for (int index = 0; index < operation.SourcesCount; index++)
|
|
{
|
|
operation.SetSource(index, null);
|
|
}
|
|
|
|
nodes.Remove(node);
|
|
}
|
|
|
|
private static Operand Gpr(X86Register register, OperandType type)
|
|
{
|
|
return Register((int)register, RegisterType.Integer, type);
|
|
}
|
|
|
|
private static Operand Xmm(X86Register register, OperandType type)
|
|
{
|
|
return Register((int)register, RegisterType.Vector, type);
|
|
}
|
|
|
|
private static bool IsSameOperandDestSrc1(Operation operation)
|
|
{
|
|
switch (operation.Instruction)
|
|
{
|
|
case Instruction.Add:
|
|
case Instruction.Multiply:
|
|
case Instruction.Subtract:
|
|
return !HardwareCapabilities.SupportsVexEncoding || operation.Destination.Type.IsInteger();
|
|
|
|
case Instruction.BitwiseAnd:
|
|
case Instruction.BitwiseExclusiveOr:
|
|
case Instruction.BitwiseNot:
|
|
case Instruction.BitwiseOr:
|
|
case Instruction.ByteSwap:
|
|
case Instruction.Negate:
|
|
case Instruction.RotateRight:
|
|
case Instruction.ShiftLeft:
|
|
case Instruction.ShiftRightSI:
|
|
case Instruction.ShiftRightUI:
|
|
return true;
|
|
|
|
case Instruction.Divide:
|
|
return !HardwareCapabilities.SupportsVexEncoding && !operation.Destination.Type.IsInteger();
|
|
|
|
case Instruction.VectorInsert:
|
|
case Instruction.VectorInsert16:
|
|
case Instruction.VectorInsert8:
|
|
return !HardwareCapabilities.SupportsVexEncoding;
|
|
}
|
|
|
|
return IsVexSameOperandDestSrc1(operation);
|
|
}
|
|
|
|
private static bool IsVexSameOperandDestSrc1(Operation operation)
|
|
{
|
|
if (IsIntrinsic(operation.Instruction))
|
|
{
|
|
bool isUnary = operation.SourcesCount < 2;
|
|
|
|
bool hasVecDest = operation.Destination != null && operation.Destination.Type == OperandType.V128;
|
|
|
|
return !HardwareCapabilities.SupportsVexEncoding && !isUnary && hasVecDest;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
private static bool HasConstSrc1(Instruction inst)
|
|
{
|
|
switch (inst)
|
|
{
|
|
case Instruction.Copy:
|
|
case Instruction.LoadArgument:
|
|
case Instruction.Spill:
|
|
case Instruction.SpillArg:
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
private static bool HasConstSrc2(Instruction inst)
|
|
{
|
|
switch (inst)
|
|
{
|
|
case Instruction.Add:
|
|
case Instruction.BitwiseAnd:
|
|
case Instruction.BitwiseExclusiveOr:
|
|
case Instruction.BitwiseOr:
|
|
case Instruction.CompareEqual:
|
|
case Instruction.CompareGreater:
|
|
case Instruction.CompareGreaterOrEqual:
|
|
case Instruction.CompareGreaterOrEqualUI:
|
|
case Instruction.CompareGreaterUI:
|
|
case Instruction.CompareLess:
|
|
case Instruction.CompareLessOrEqual:
|
|
case Instruction.CompareLessOrEqualUI:
|
|
case Instruction.CompareLessUI:
|
|
case Instruction.CompareNotEqual:
|
|
case Instruction.Multiply:
|
|
case Instruction.RotateRight:
|
|
case Instruction.ShiftLeft:
|
|
case Instruction.ShiftRightSI:
|
|
case Instruction.ShiftRightUI:
|
|
case Instruction.Subtract:
|
|
case Instruction.VectorExtract:
|
|
case Instruction.VectorExtract16:
|
|
case Instruction.VectorExtract8:
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
private static bool IsCommutative(Instruction inst)
|
|
{
|
|
switch (inst)
|
|
{
|
|
case Instruction.Add:
|
|
case Instruction.BitwiseAnd:
|
|
case Instruction.BitwiseExclusiveOr:
|
|
case Instruction.BitwiseOr:
|
|
case Instruction.CompareEqual:
|
|
case Instruction.CompareNotEqual:
|
|
case Instruction.Multiply:
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
private static bool IsIntrinsic(Instruction inst)
|
|
{
|
|
return inst == Instruction.Extended;
|
|
}
|
|
}
|
|
} |