commit 657b75b9946eae763725b413841dfd01ed12a051
author Andrew Trick <atrick@apple.com> Sat Dec 01 01:22:49 2012 +0000
committer Andrew Trick <atrick@apple.com> Sat Dec 01 01:22:49 2012 +0000
tree de81df33e6e9512eaac94317366c09e0dbc883d8
parent 177d87ac8d974529b07430b2088f699ed279cd1d

misched: Fix RegisterPressureTracker handling of DebugVals.

Assertion failed: (TopRPTracker.getPos() == RegionBegin && "bad initial Top tracker").
rdar://12790302.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169072 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/MachineScheduler.cpp

diff --git a/lib/CodeGen/MachineScheduler.cpp b/lib/CodeGen/MachineScheduler.cpp
index cc7aabd..0789a74 100644
--- a/lib/CodeGen/MachineScheduler.cpp
+++ b/lib/CodeGen/MachineScheduler.cpp
@@ -603,7 +603,11 @@
 
   SchedImpl->registerRoots();
 
+  // Advance past initial DebugValues.
+  assert(TopRPTracker.getPos() == RegionBegin && "bad initial Top tracker");
   CurrentTop = nextIfDebug(RegionBegin, RegionEnd);
+  TopRPTracker.setPos(CurrentTop);
+
   CurrentBottom = RegionEnd;
 }