[LLVMbugs] [Bug 17476] New: Crashes building lld

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=17476

            Bug ID: 17476
           Summary: Crashes building lld
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: LLVM Codegen
          Assignee: unassignedclangbugs at nondot.org
          Reporter: rafael.espindola at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Reduced testcase:

struct string {
  string(const char *__s);
  string &operator+=(const string &__str);
};

template <class ELFT> void finalizeDefaultAtomValues() {
  auto startEnd = [&](const char * sym)->void {
    string start("__");
    start += sym;
  }
  ;
  startEnd("preinit_array");
}

void f() { finalizeDefaultAtomValues<int>(); }


$ clang -cc1 -std=c++11 Writer.ii -emit-llvm
clang: /home/espindola/llvm/llvm/tools/clang/lib/CodeGen/CGExpr.cpp:1784:
clang::CodeGen::LValue clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(const
clang::DeclRefExpr*): Assertion `isa<BlockDecl>(CurCodeDecl) &&
E->refersToEnclosingLocal()' failed.
0  clang           0x0000000001da88f4 llvm::sys::PrintStackTrace(_IO_FILE*) +
38
1  clang           0x0000000001da8b71
2  clang           0x0000000001da852e
3  libpthread.so.0 0x00000032ef80efa0
4  libc.so.6       0x00000032ef435a19 gsignal + 57
5  libc.so.6       0x00000032ef437128 abort + 328
6  libc.so.6       0x00000032ef42e986
7  libc.so.6       0x00000032ef42ea32
8  clang           0x0000000001f3c215
clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(clang::DeclRefExpr const*) +
1433
9  clang           0x0000000001f37345
clang::CodeGen::CodeGenFunction::EmitLValue(clang::Expr const*) + 481
10 clang           0x0000000001f37054
clang::CodeGen::CodeGenFunction::EmitCheckedLValue(clang::Expr const*,
clang::CodeGen::CodeGenFunction::TypeCheckKind) + 278

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