Fix the check for an empty basic block to check for an empty SUnits
array instead, since this is what the scheduler actually cares about.
And remove a check that is unnecessary, since it can assume that
SUnits isn't empty.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62362 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/PostRASchedulerList.cpp b/lib/CodeGen/PostRASchedulerList.cpp
index b7bfe3f..12d9efa 100644
--- a/lib/CodeGen/PostRASchedulerList.cpp
+++ b/lib/CodeGen/PostRASchedulerList.cpp
@@ -264,7 +264,7 @@
bool SchedulePostRATDList::BreakAntiDependencies() {
// The code below assumes that there is at least one instruction,
// so just duck out immediately if the block is empty.
- if (BB->empty()) return false;
+ if (SUnits.empty()) return false;
// Find the node at the bottom of the critical path.
SUnit *Max = 0;
@@ -275,7 +275,7 @@
}
DOUT << "Critical path has total latency "
- << (Max ? Max->getDepth() + Max->Latency : 0) << "\n";
+ << (Max->getDepth() + Max->Latency) << "\n";
// Track progress along the critical path through the SUnit graph as we walk
// the instructions.