/// <summary cref="IValueVisitor.Visit(WarpShuffle)"/>
public void Visit(WarpShuffle shuffle)
{
if (!CLInstructions.TryGetShuffleOperation(
Backend.Vendor,
shuffle.Kind,
out string operation))
{
throw new InvalidCodeGenerationException();
}
var source = Load(shuffle.Variable);
var origin = Load(shuffle.Origin);
var target = Allocate(shuffle);
using (var statement = BeginStatement(target))
{
statement.AppendCommand(operation);
statement.BeginArguments();
statement.AppendArgument(source);
// TODO: create a generic version that does not need this switch
switch (shuffle.Kind)
{
case ShuffleKind.Down:
case ShuffleKind.Up:
statement.AppendArgument(source);
break;
}
statement.AppendArgument(origin);
statement.EndArguments();
}
}
/// <summary>
/// Lowers warp shuffles.
/// </summary>
private static void Lower(
SSARewriterContext <FieldRef> context,
LoweringData _,
WarpShuffle value) =>
LowerThreadValue <
WarpShuffle,
LowerThreadIntrinsics.WarpShuffleLowering>(
context,
value.Type as StructureType,
value);
/// <summary cref="IValueVisitor.Visit(WarpShuffle)"/> public void Visit(WarpShuffle shuffle) => CodeGenerator.GenerateCode(shuffle);
