[llvm-commits] [llvm] r126319 - /llvm/trunk/lib/CodeGen/SplitKit.cpp

[Jakob Stoklund Olesen]

Author: stoklund
Date: Wed Feb 23 12:26:31 2011
New Revision: 126319

URL: http://llvm.org/viewvc/llvm-project?rev=126319&view=rev
Log:
It is safe to ignore LastSplitPoint when the variable is not live out.

No code will be inserted after the split point anyway.

Modified:
    llvm/trunk/lib/CodeGen/SplitKit.cpp

Modified: llvm/trunk/lib/CodeGen/SplitKit.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SplitKit.cpp?rev=126319&r1=126318&r2=126319&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SplitKit.cpp (original)
+++ llvm/trunk/lib/CodeGen/SplitKit.cpp Wed Feb 23 12:26:31 2011
@@ -961,10 +961,10 @@
 
     openIntv();
     SlotIndex SegStart = enterIntvBefore(BI.FirstUse);
-    if (BI.LastUse < BI.LastSplitPoint) {
+    if (!BI.LiveOut || BI.LastUse < BI.LastSplitPoint) {
       useIntv(SegStart, leaveIntvAfter(BI.LastUse));
     } else {
-      // THe last use os after tha last valid split point.
+      // The last use is after the last valid split point.
       SlotIndex SegStop = leaveIntvBefore(BI.LastSplitPoint);
       useIntv(SegStart, SegStop);
       overlapIntv(SegStop, BI.LastUse);