[llvm-commits] [llvm] r124842 - /llvm/trunk/lib/CodeGen/SplitKit.cpp

[Jakob Stoklund Olesen]

Author: stoklund
Date: Thu Feb  3 18:59:23 2011
New Revision: 124842

URL: http://llvm.org/viewvc/llvm-project?rev=124842&view=rev
Log:
Skip unused values.

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=124842&r1=124841&r2=124842&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SplitKit.cpp (original)
+++ llvm/trunk/lib/CodeGen/SplitKit.cpp Thu Feb  3 18:59:23 2011
@@ -948,6 +948,8 @@
   for (LiveInterval::const_vni_iterator I = Edit.getParent().vni_begin(),
          E = Edit.getParent().vni_end(); I != E; ++I) {
     const VNInfo *ParentVNI = *I;
+    if (ParentVNI->isUnused())
+      continue;
     LiveIntervalMap &LIM = LIMappers[RegAssign.lookup(ParentVNI->def)];
     VNInfo *VNI = LIM.defValue(ParentVNI, ParentVNI->def);
     LIM.getLI()->addRange(LiveRange(ParentVNI->def,
@@ -976,7 +978,7 @@
   for (LiveInterval::const_vni_iterator I = Edit.getParent().vni_begin(),
        E = Edit.getParent().vni_end(); I != E; ++I) {
     const VNInfo *PHIVNI = *I;
-    if (!PHIVNI->isPHIDef())
+    if (PHIVNI->isUnused() || !PHIVNI->isPHIDef())
       continue;
     unsigned RegIdx = RegAssign.lookup(PHIVNI->def);
     LiveIntervalMap &LIM = LIMappers[RegIdx];