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Arm64: Simplify TryEncodeBitMask and use for constants (#4328)

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* Arm64: Simplify TryEncodeBitMask

* CodeGenerator: Use TryEncodeBitMask in GenerateConstantCopy

* Ptc: Bump version
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merry 2023-01-22 14:15:49 +00:00 • committed by GitHub
parent 32a1cd83fd
commit 4f293f8cbe
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5 changed files with 81 additions and 107 deletions
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14
ARMeilleure/CodeGen/Arm64/CodeGenerator.cs
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@ -1303,7 +1303,15 @@ namespace ARMeilleure.CodeGen.Arm64
private static void GenerateConstantCopy(CodeGenContext context, Operand dest, ulong value)
{
if (value != 0)
if (value == 0)
{
context.Assembler.Mov(dest, Register(ZrRegister, dest.Type));
}
else if (CodeGenCommon.TryEncodeBitMask(dest.Type, value, out _, out _, out _))
{
context.Assembler.Orr(dest, Register(ZrRegister, dest.Type), Const(dest.Type, (long)value));
}
else
{
int hw = 0;
bool first = true;
@ -1328,10 +1336,6 @@ namespace ARMeilleure.CodeGen.Arm64
value >>= 16;
}
}
else
{
context.Assembler.Mov(dest, Register(ZrRegister, dest.Type));
}
}
private static void GenerateAtomicCas(