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authorTSR Berry <20988865+TSRBerry@users.noreply.github.com>2023-04-08 01:22:00 +0200
committerMary <thog@protonmail.com>2023-04-27 23:51:14 +0200
commitcee712105850ac3385cd0091a923438167433f9f (patch)
tree4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /ARMeilleure/CodeGen/X86/PreAllocatorWindows.cs
parentcd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff)
Move solution and projects to src
Diffstat (limited to 'ARMeilleure/CodeGen/X86/PreAllocatorWindows.cs')
-rw-r--r--ARMeilleure/CodeGen/X86/PreAllocatorWindows.cs327
1 files changed, 0 insertions, 327 deletions
diff --git a/ARMeilleure/CodeGen/X86/PreAllocatorWindows.cs b/ARMeilleure/CodeGen/X86/PreAllocatorWindows.cs
deleted file mode 100644
index 45319e6a..00000000
--- a/ARMeilleure/CodeGen/X86/PreAllocatorWindows.cs
+++ /dev/null
@@ -1,327 +0,0 @@
-using ARMeilleure.CodeGen.RegisterAllocators;
-using ARMeilleure.IntermediateRepresentation;
-using ARMeilleure.Translation;
-using System;
-using System.Diagnostics;
-using static ARMeilleure.IntermediateRepresentation.Operand.Factory;
-using static ARMeilleure.IntermediateRepresentation.Operation.Factory;
-
-namespace ARMeilleure.CodeGen.X86
-{
- class PreAllocatorWindows : PreAllocator
- {
- public static void InsertCallCopies(IntrusiveList<Operation> nodes, StackAllocator stackAlloc, Operation node)
- {
- Operand dest = node.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 = default;
-
- if (dest != default && 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 = node.SourcesCount - 1;
- int maxArgs = CallingConvention.GetArgumentsOnRegsCount() - retArgs;
-
- if (argsCount > maxArgs)
- {
- argsCount = maxArgs;
- }
-
- Operand[] sources = new Operand[1 + retArgs + argsCount];
-
- sources[0] = node.GetSource(0);
-
- if (arg0Reg != default)
- {
- sources[1] = arg0Reg;
- }
-
- for (int index = 1; index < node.SourcesCount; index++)
- {
- Operand source = node.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, default, stackAddr, source);
-
- InsertConstantRegCopies(nodes, nodes.AddBefore(node, storeOp));
-
- node.SetSource(index, stackAddr);
- }
- }
-
- // Handle arguments passed on registers.
- for (int index = 0; index < argsCount; index++)
- {
- Operand source = node.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);
-
- InsertConstantRegCopies(nodes, nodes.AddBefore(node, 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 < node.SourcesCount - 1; index++)
- {
- Operand source = node.GetSource(index + 1);
- Operand offset = Const((index + retArgs) * 8);
-
- Operation spillOp = Operation(Instruction.SpillArg, default, offset, source);
-
- InsertConstantRegCopies(nodes, nodes.AddBefore(node, spillOp));
- }
-
- if (dest != default)
- {
- 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);
-
- nodes.AddAfter(node, loadOp);
-
- node.Destination = default;
- }
- else
- {
- Operand retReg = dest.Type.IsInteger()
- ? Gpr(CallingConvention.GetIntReturnRegister(), dest.Type)
- : Xmm(CallingConvention.GetVecReturnRegister(), dest.Type);
-
- Operation copyOp = Operation(Instruction.Copy, dest, retReg);
-
- nodes.AddAfter(node, copyOp);
-
- node.Destination = retReg;
- }
- }
-
- node.SetSources(sources);
- }
-
- public static void InsertTailcallCopies(IntrusiveList<Operation> nodes, StackAllocator stackAlloc, Operation node)
- {
- int argsCount = node.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 = node.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);
-
- InsertConstantRegCopies(nodes, nodes.AddBefore(node, 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, node.GetSource(0));
-
- nodes.AddBefore(node, addrCopyOp);
-
- sources[0] = retReg;
-
- node.SetSources(sources);
- }
-
- public static Operation InsertLoadArgumentCopy(
- CompilerContext cctx,
- ref Span<Operation> buffer,
- IntrusiveList<Operation> nodes,
- Operand[] preservedArgs,
- Operation node)
- {
- Operand source = node.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 = node.Destination;
-
- if (preservedArgs[index] == default)
- {
- 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 nextNode;
-
- if (dest.Type != OperandType.V128 && dest.AssignmentsCount == 1)
- {
- // Let's propagate the argument if we can to avoid copies.
- PreAllocatorCommon.Propagate(ref buffer, dest, preservedArgs[index]);
- nextNode = node.ListNext;
- }
- else
- {
- Operation argCopyOp = Operation(dest.Type == OperandType.V128
- ? Instruction.Load
- : Instruction.Copy, dest, preservedArgs[index]);
-
- nextNode = nodes.AddBefore(node, argCopyOp);
- }
-
- Delete(nodes, node);
- return nextNode;
- }
- else
- {
- // TODO: Pass on stack.
- return node;
- }
- }
-
- public static void InsertReturnCopy(
- CompilerContext cctx,
- IntrusiveList<Operation> nodes,
- Operand[] preservedArgs,
- Operation node)
- {
- if (node.SourcesCount == 0)
- {
- return;
- }
-
- Operand source = node.GetSource(0);
- Operand retReg;
-
- if (source.Type.IsInteger())
- {
- retReg = Gpr(CallingConvention.GetIntReturnRegister(), source.Type);
- }
- else if (source.Type == OperandType.V128)
- {
- if (preservedArgs[0] == default)
- {
- 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, default, retReg, source);
-
- nodes.AddBefore(node, retStoreOp);
- }
- else
- {
- Operation retCopyOp = Operation(Instruction.Copy, retReg, source);
-
- nodes.AddBefore(node, retCopyOp);
- }
-
- node.SetSources(Array.Empty<Operand>());
- }
- }
-} \ No newline at end of file