[LLVMbugs] [Bug 21951] New: [fuzz] UNREACHABLE executed at tools/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp:2660!

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Dec 18 04:16:32 PST 2014


            Bug ID: 21951
           Summary: [fuzz] UNREACHABLE executed at
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: sami.liedes at iki.fi
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Fuzzing discovered that the test case given below, when given as input to

  clang -fno-crash-diagnostics -std=c++11 -xc++ -c -emit-llvm

causes UNREACHABLE to be executed:

template <typename=void>
struct A {
  void C() {
    A<> I;

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