commit 5c482cd38f83f6fc1b95f86478e684e5f072399e
author Jakob Stoklund Olesen <stoklund@2pi.dk> Tue Apr 05 23:43:14 2011 +0000
committer Jakob Stoklund Olesen <stoklund@2pi.dk> Tue Apr 05 23:43:14 2011 +0000
tree dd5206a8a4dc2c6427c6d9ffe25cfea4b11c83a0
parent 30b5473d82125a99721e280eaba95ccd8abb741c

Don't crash when a value is defined after the last split point.

llvm-svn: 128962

llvm/lib/CodeGen/SplitKit.cpp

diff --git a/llvm/lib/CodeGen/SplitKit.cpp b/llvm/lib/CodeGen/SplitKit.cpp
index 4b64288..a3e065d 100644
--- a/llvm/lib/CodeGen/SplitKit.cpp
+++ b/llvm/lib/CodeGen/SplitKit.cpp
@@ -673,7 +673,8 @@
          "Range cannot span basic blocks");
 
   // The complement interval will be extended as needed by extendRange().
-  markComplexMapped(0, ParentVNI);
+  if (ParentVNI)
+    markComplexMapped(0, ParentVNI);
   DEBUG(dbgs() << "    overlapIntv [" << Start << ';' << End << "):");
   RegAssign.insert(Start, End, OpenIdx);
   DEBUG(dump());