[llvm-commits] [llvm] r71991 - /llvm/trunk/lib/CodeGen/RegAllocPBQP.cpp

[Lang Hames]

Author: lhames
Date: Sun May 17 18:50:36 2009
New Revision: 71991

URL: http://llvm.org/viewvc/llvm-project?rev=71991&view=rev
Log:
Prevented reg0 from being added to MBB live-in set, which was causing issues
for PostRAScheduler. 

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

Modified: llvm/trunk/lib/CodeGen/RegAllocPBQP.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/RegAllocPBQP.cpp?rev=71991&r1=71990&r2=71991&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/RegAllocPBQP.cpp (original)
+++ llvm/trunk/lib/CodeGen/RegAllocPBQP.cpp Sun May 17 18:50:36 2009
@@ -765,6 +765,11 @@
       continue;
     }
 
+    // Ignore unallocated vregs:
+    if (reg == 0) {
+      continue;
+    }
+
     // Iterate over the ranges of the current interval...
     for (LRIterator lrItr = li->begin(), lrEnd = li->end();
          lrItr != lrEnd; ++lrItr) {