In line with the previous patch, do not assert out if analyzing a dead basic block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14475 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 7569875ad0..4fc08ec6b9 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -368,8 +368,11 @@ void LiveIntervals::handlePhysicalRegisterDef(MachineBasicBlock* mbb,
         }
     }
 
+    // LiveVariables does not compute information for dead basic blocks.
+    DEBUG(std::cerr << "Didn't find the end of the interval.  Must be in a "
+          "dead block.");
+    end = getDefIndex(start)+1;
 exit:
-    assert(start < end && "did not find end of interval?");
     interval.addRange(start, end);
     DEBUG(std::cerr << '\n');
 }