diff options
| -rw-r--r-- | llvm/tools/bugpoint/CrashDebugger.cpp | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/llvm/tools/bugpoint/CrashDebugger.cpp b/llvm/tools/bugpoint/CrashDebugger.cpp index aab9debf9b5..de86fc27f22 100644 --- a/llvm/tools/bugpoint/CrashDebugger.cpp +++ b/llvm/tools/bugpoint/CrashDebugger.cpp @@ -1289,7 +1289,21 @@ Error BugDriver::debugOptimizerCrash(const std::string &ID) { EmitProgressBitcode(*Program, ID); - return DebugACrash(*this, TestForOptimizerCrash); + auto Res = DebugACrash(*this, TestForOptimizerCrash); + if (Res || DontReducePassList) + return Res; + // Try to reduce the pass list again. This covers additional cases + // we failed to reduce earlier, because of more complex pass dependencies + // triggering the crash. + auto SecondRes = ReducePassList(*this).reduceList(PassesToRun); + if (Error E = SecondRes.takeError()) + return E; + outs() << "\n*** Found crashing pass" + << (PassesToRun.size() == 1 ? ": " : "es: ") + << getPassesString(PassesToRun) << '\n'; + + EmitProgressBitcode(getProgram(), "reduced-simplified"); + return Res; } static bool TestForCodeGenCrash(const BugDriver &BD, Module *M) { |
