From a5f19560fb129ed7a85a5b9b3e6a2846f2a040cd Mon Sep 17 00:00:00 2001 From: Andrew Trick Date: Wed, 7 Mar 2012 00:18:25 +0000 Subject: Added -view-misched=dags options. llvm-svn: 152178 --- llvm/lib/CodeGen/MachineScheduler.cpp | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'llvm/lib/CodeGen') diff --git a/llvm/lib/CodeGen/MachineScheduler.cpp b/llvm/lib/CodeGen/MachineScheduler.cpp index 55b931ff80f..5d7dee8e1ee 100644 --- a/llvm/lib/CodeGen/MachineScheduler.cpp +++ b/llvm/lib/CodeGen/MachineScheduler.cpp @@ -30,6 +30,13 @@ using namespace llvm; +#ifndef NDEBUG +static cl::opt ViewMISchedDAGs("view-misched-dags", cl::Hidden, + cl::desc("Pop up a window to show MISched dags after they are processed")); +#else +static bool ViewMISchedDAGs = false; +#endif // NDEBUG + //===----------------------------------------------------------------------===// // Machine Instruction Scheduling Pass and Registry //===----------------------------------------------------------------------===// @@ -205,6 +212,8 @@ void ScheduleTopDownLive::Schedule() { DEBUG(for (unsigned su = 0, e = SUnits.size(); su != e; ++su) SUnits[su].dumpAll(this)); + if (ViewMISchedDAGs) viewGraph(); + // Release any successors of the special Entry node. It is currently unused, // but we keep up appearances. releaseSuccessors(&EntrySU); -- cgit v1.2.3