private void RewriteVectorUnaryOp(string fnNameFormat, ArmVectorData elemType)
{
var src1 = this.Operand(Src1());
var dst = this.Operand(Dst(), PrimitiveType.Word32, true);
var dstType = Dst().Width;
var srcType = Src1().Width;
var srcElemSize = Arm32Architecture.VectorElementDataType(elemType);
var celemSrc = srcType.BitSize / srcElemSize.BitSize;
var arrSrc = new ArrayType(srcType, celemSrc);
var arrDst = new ArrayType(dstType, celemSrc);
var fnName = string.Format(fnNameFormat, VectorElementTypeName(elemType));
var intrinsic = host.Intrinsic(fnName, true, arrDst, src1);
m.Assign(dst, intrinsic);
}
private void RewriteVmul()
{
var src1 = this.Operand(Src1());
var src2 = this.Operand(Src2());
var dst = this.Operand(Dst(), PrimitiveType.Word32, true);
var dstType = Dst().Width;
var srcType = Src1().Width;
var srcElemSize = Arm32Architecture.VectorElementDataType(instr.vector_data);
var celemSrc = srcType.BitSize / srcElemSize.BitSize;
var arrSrc = new ArrayType(srcType, celemSrc);
var arrDst = new ArrayType(dstType, celemSrc);
var fnName = $"__vmul_{VectorElementTypeName(instr.vector_data)}";
var intrinsic = host.Intrinsic(fnName, true, arrDst, src1, src2);
m.Assign(dst, m.Fn(intrinsic));
}
private void RewriteVectorBinOp(string fnNameFormat, ArmVectorData elemType)
{
var src1 = this.Operand(Src1());
var src2 = this.Operand(Src2());
var dst = this.Operand(Dst(), PrimitiveType.Word32, true);
var dstType = Dst().Width;
var srcType = Src1().Width;
var srcElemSize = Arm32Architecture.VectorElementDataType(elemType);
//$BUG: some instructions are returned with srcElemnSize == 0!
var celemSrc = srcType.BitSize / (srcElemSize.BitSize != 0 ? srcElemSize.BitSize : 8);
var arrSrc = new ArrayType(srcType, celemSrc);
var arrDst = new ArrayType(dstType, celemSrc);
var fnName = string.Format(fnNameFormat, VectorElementType(elemType));
var intrinsic = host.PseudoProcedure(fnName, arrDst, src1, src2);
m.Assign(dst, intrinsic);
}
private void RewriteVmov()
{
//if (instr.ops.Length > 2) throw new NotImplementedException();
var dst = this.Operand(Dst(), PrimitiveType.Word32, true);
var src = this.Operand(Src1());
if (instr.vector_data != ArmVectorData.INVALID && !(src is ArrayAccess))
{
var dt = Arm32Architecture.VectorElementDataType(instr.vector_data);
var dstType = Dst().Width;
var srcType = Src1().Width;
var srcElemSize = Arm32Architecture.VectorElementDataType(instr.vector_data);
var celemSrc = dstType.BitSize / srcElemSize.BitSize;
var arrDst = new ArrayType(dstType, celemSrc);
if (Src1() is ImmediateOperand imm)
{
if (dst.DataType.BitSize == 128)
{
src = m.Seq(src, src);
}
m.Assign(dst, src);
return;
}
var fname = $"__vmov_{VectorElementTypeName(instr.vector_data)}";
var intrinsic = host.Intrinsic(fname, true, Dst().Width, src);
m.Assign(dst, m.Fn(intrinsic));
}
else
{
if (dst.DataType.BitSize != src.DataType.BitSize)
{
src = m.Convert(src, src.DataType, dst.DataType);
}
m.Assign(dst, src);
}
}