protected internal override void VisitLdObj(LdObj inst)
{
if (inst.Target.MatchLdLoca(thisVariable))
{
inst.ReplaceWith(target.Clone());
return;
}
base.VisitLdObj(inst);
}
internal static bool LdObjToLdLoc(LdObj inst, ILTransformContext context)
{
if (inst.Target.MatchLdLoca(out ILVariable v) &&
TypeUtils.IsCompatibleTypeForMemoryAccess(v.Type, inst.Type) &&
inst.UnalignedPrefix == 0 &&
!inst.IsVolatile)
{
context.Step($"ldobj(ldloca {v.Name}) => ldloc {v.Name}", inst);
inst.ReplaceWith(new LdLoc(v).WithILRange(inst));
return(true);
}
return(false);
}
protected internal override void VisitLdObj(LdObj inst)
{
base.VisitLdObj(inst);
EarlyExpressionTransforms.AddressOfLdLocToLdLoca(inst, context);
if (EarlyExpressionTransforms.LdObjToLdLoc(inst, context))
{
return;
}
if (TransformDecimalFieldToConstant(inst, out LdcDecimal decimalConstant))
{
context.Step("TransformDecimalFieldToConstant", inst);
inst.ReplaceWith(decimalConstant);
return;
}
}
internal static bool LdObjToLdLoc(LdObj inst, ILTransformContext context)
{
if (inst.Target.MatchLdLoca(out ILVariable v) &&
TypeUtils.IsCompatibleTypeForMemoryAccess(v.Type, inst.Type) &&
inst.UnalignedPrefix == 0 &&
!inst.IsVolatile)
{
context.Step($"ldobj(ldloca {v.Name}) => ldloc {v.Name}", inst);
ILInstruction replacement = new LdLoc(v).WithILRange(inst);
if (v.StackType == StackType.Unknown && inst.Type.Kind != TypeKind.Unknown)
{
replacement = new Conv(replacement, inst.Type.ToPrimitiveType(),
checkForOverflow: false, Sign.None);
}
inst.ReplaceWith(replacement);
return(true);
}
return(false);
}