[llvm-commits] [llvm] r156167 - /llvm/trunk/lib/Transforms/Utils/CodeExtractor.cpp

[Chandler Carruth]

Author: chandlerc
Date: Fri May  4 06:17:06 2012
New Revision: 156167

URL: http://llvm.org/viewvc/llvm-project?rev=156167&view=rev
Log:
Rather than trying to gracefully handle input sequences with repeated
blocks, assert that this doesn't happen. We don't want to bother trying
to support this call pattern as it isn't necessary.

Modified:
    llvm/trunk/lib/Transforms/Utils/CodeExtractor.cpp

Modified: llvm/trunk/lib/Transforms/Utils/CodeExtractor.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Utils/CodeExtractor.cpp?rev=156167&r1=156166&r2=156167&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Utils/CodeExtractor.cpp (original)
+++ llvm/trunk/lib/Transforms/Utils/CodeExtractor.cpp Fri May  4 06:17:06 2012
@@ -74,7 +74,7 @@
   for (ArrayRef<BasicBlock *>::iterator I = BBs.begin(), E = BBs.end();
        I != E; ++I) {
     if (!Result.insert(*I))
-      continue;
+      llvm_unreachable("Repeated basic blocks in extraction input");
 
     if (!isBlockValidForExtraction(**I)) {
       Result.clear();