Added debugging options: -misched-only-func/block
llvm-svn: 198124
diff --git a/llvm/lib/CodeGen/MachineScheduler.cpp b/llvm/lib/CodeGen/MachineScheduler.cpp
index 3b6c88b..eab0eb1 100644
--- a/llvm/lib/CodeGen/MachineScheduler.cpp
+++ b/llvm/lib/CodeGen/MachineScheduler.cpp
@@ -49,6 +49,11 @@
static cl::opt<unsigned> MISchedCutoff("misched-cutoff", cl::Hidden,
cl::desc("Stop scheduling after N instructions"), cl::init(~0U));
+
+static cl::opt<std::string> SchedOnlyFunc("misched-only-func", cl::Hidden,
+ cl::desc("Only schedule this function"));
+static cl::opt<unsigned> SchedOnlyBlock("misched-only-block", cl::Hidden,
+ cl::desc("Only schedule this MBB#"));
#else
static bool ViewMISchedDAGs = false;
#endif // NDEBUG
@@ -377,6 +382,14 @@
Scheduler.startBlock(MBB);
+#ifndef NDEBUG
+ if (SchedOnlyFunc.getNumOccurrences() && SchedOnlyFunc != MF->getName())
+ continue;
+ if (SchedOnlyBlock.getNumOccurrences()
+ && (int)SchedOnlyBlock != MBB->getNumber())
+ continue;
+#endif
+
// Break the block into scheduling regions [I, RegionEnd), and schedule each
// region as soon as it is discovered. RegionEnd points the scheduling
// boundary at the bottom of the region. The DAG does not include RegionEnd,