commit 5cfff2545d5c731bb236d6e5c355bcb59d7abda7
author John Criswell <criswell@uiuc.edu> Mon Aug 04 18:24:31 2003 +0000
committer John Criswell <criswell@uiuc.edu> Mon Aug 04 18:24:31 2003 +0000
tree 0a1926cc49a155714ba3983751fc4419c258661b
parent e5bb2d94d95e6be18ed74204e47d22553ec8bfbc

Added code that ensures that we don't try to reduce an empty vector of basic
blocks.
This fixes the bugpoint regressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7569 91177308-0d34-0410-b5e6-96231b3b80d8

tools/bugpoint/CrashDebugger.cpp

diff --git a/tools/bugpoint/CrashDebugger.cpp b/tools/bugpoint/CrashDebugger.cpp
index 40854aa..852359a 100644
--- a/tools/bugpoint/CrashDebugger.cpp
+++ b/tools/bugpoint/CrashDebugger.cpp
@@ -142,7 +142,7 @@
     
   virtual TestResult doTest(std::vector<BasicBlock*> &Prefix,
                             std::vector<BasicBlock*> &Kept) {
-    if (TestBlocks(Kept))
+    if (!Kept.empty() && TestBlocks(Kept))
       return KeepSuffix;
     if (!Prefix.empty() && TestBlocks(Prefix))
       return KeepPrefix;