[llvm-bugs] [Bug 34261] New: Clang does not output local variable information with /O0 /Od for NRVO'ed variables.

via llvm-bugs llvm-bugs at lists.llvm.org
Mon Aug 21 12:17:30 PDT 2017


https://bugs.llvm.org/show_bug.cgi?id=34261

            Bug ID: 34261
           Summary: Clang does not output local variable information with
                    /O0 /Od for NRVO'ed variables.
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: DebugInfo
          Assignee: llvm at inglorion.net
          Reporter: zturner at google.com
                CC: llvm-bugs at lists.llvm.org

std::string func() {
  std::string S = "foo";
  S += " bar";
  return S;
}

if you build with clang-cl at O0 and /Od and set a breakpoint, MSVC and WinDbg
will say that variable information for S is not present.

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