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Optimize x64 loads and stores using complex addressing modes (#972)

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* Optimize x64 loads and stores using complex addressing modes

* This was meant to be used for testing
This commit is contained in:
gdkchan 2020-03-09 19:29:34 -03:00 • committed by GitHub
parent e2bb5e8091
commit 61d79facd1
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GPG key ID: 4AEE18F83AFDEB23
10 changed files with 538 additions and 86 deletions
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83
ARMeilleure/CodeGen/RegisterAllocators/HybridAllocator.cs
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@ -110,6 +110,20 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
{
locInfo[source.AsInt32() - 1].SetBlockIndex(block.Index);
}
else if (source.Kind == OperandKind.Memory)
{
MemoryOperand memOp = (MemoryOperand)source;
if (memOp.BaseAddress != null)
{
locInfo[memOp.BaseAddress.AsInt32() - 1].SetBlockIndex(block.Index);
}
if (memOp.Index != null)
{
locInfo[memOp.Index.AsInt32() - 1].SetBlockIndex(block.Index);
}
}
}
for (int dstIndex = 0; dstIndex < node.DestinationsCount; dstIndex++)
@ -181,15 +195,8 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
int intLocalUse = 0;
int vecLocalUse = 0;
for (int srcIndex = 0; srcIndex < node.SourcesCount; srcIndex++)
void AllocateRegister(Operand source, MemoryOperand memOp, int srcIndex)
{
Operand source = node.GetSource(srcIndex);
if (source.Kind != OperandKind.LocalVariable)
{
continue;
}
LocalInfo info = locInfo[source.AsInt32() - 1];
info.UseCount++;
@ -198,7 +205,23 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
if (info.Register != -1)
{
node.SetSource(srcIndex, Register(info.Register, source.Type.ToRegisterType(), source.Type));
Operand reg = Register(info.Register, source.Type.ToRegisterType(), source.Type);
if (memOp != null)
{
if (srcIndex == 0)
{
memOp.BaseAddress = reg;
}
else /* if (srcIndex == 1) */
{
memOp.Index = reg;
}
}
else
{
node.SetSource(srcIndex, reg);
}
if (info.UseCount == info.Uses && !info.PreAllocated)
{
@ -223,10 +246,24 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
: GetSpillTemp(source, vecSpillTempRegisters, ref vecLocalUse);
info.Sequence = sequence;
info.Temp = temp;
info.Temp = temp;
}
node.SetSource(srcIndex, temp);
if (memOp != null)
{
if (srcIndex == 0)
{
memOp.BaseAddress = temp;
}
else /* if (srcIndex == 1) */
{
memOp.Index = temp;
}
}
else
{
node.SetSource(srcIndex, temp);
}
Operation fillOp = new Operation(Instruction.Fill, temp, Const(info.SpillOffset));
@ -234,6 +271,30 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
}
}
for (int srcIndex = 0; srcIndex < node.SourcesCount; srcIndex++)
{
Operand source = node.GetSource(srcIndex);
if (source.Kind == OperandKind.LocalVariable)
{
AllocateRegister(source, null, srcIndex);
}
else if (source.Kind == OperandKind.Memory)
{
MemoryOperand memOp = (MemoryOperand)source;
if (memOp.BaseAddress != null)
{
AllocateRegister(memOp.BaseAddress, memOp, 0);
}
if (memOp.Index != null)
{
AllocateRegister(memOp.Index, memOp, 1);
}
}
}
int intLocalAsg = 0;
int vecLocalAsg = 0;