/// <summary>
/// Resolves branch instructions.
/// </summary>
public static void Resolve(IList <Branch> branches, ICodeProvider provider)
{
#if DEBUG
DebugHooks.LogInfo("ResolveBranches started");
#endif
for (int i = 0; i < branches.Count; ++i)
{
var br = branches[i].Source;
var bb = branches[i].TargetBlock;
if (br.IsSwitch)
{
var e = bb.FirstOut;
int deftarget = e.To.TranslatedEntryIndex;
var targets = new List <int>();
for (e = e.NextOut; e != null; e = e.NextOut)
{
targets.Add(e.To.TranslatedEntryIndex);
}
provider.SetCaseTargets(br, targets.ToArray(), deftarget);
}
else if (br.IsConditionalBranch)
{
var e = bb.TrueEdge;
provider.SetBranchTarget(br, e.To.TranslatedEntryIndex);
}
else //unconditional branch
{
#if DEBUG
if (!br.IsUnconditionalBranch) //sanity check
{
throw new ILTranslatorException("Invalid branch instruction");
}
#endif
var e = bb.FirstOut;
if (e.To != bb) //avoid cycle!
{
provider.SetBranchTarget(br, e.To.TranslatedEntryIndex);
}
else
{
provider.SetBranchTarget(br, bb.TranslatedExitIndex - 1);
}
}
}
#if DEBUG
DebugHooks.LogInfo("ResolveBranches succeeded");
#endif
}
