[llvm-bugs] [Bug 27451] New: Clang doesn't add LLVM lifetime markers for temporaries created by lifetime extension

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=27451

            Bug ID: 27451
           Summary: Clang doesn't add LLVM lifetime markers for
                    temporaries created by lifetime extension
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: LLVM Codegen
          Assignee: unassignedclangbugs at nondot.org
          Reporter: timshen91 at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

// RUN: clang++ -O2 -S -emit-llvm -fno-exceptions -std=c++11 %s -o - |
FileCheck %s
// CHECK: @llvm.lifetime.start
#include <string>

extern void Bar(const std::string&);

void Foo() {
  // Both string objects should share the same stack slot, but they don't.
  {
    const std::string& v = {"asdf"};
    Bar(v);
  }
  {
    const std::string& v = {"adsf"};
    Bar(v);
  }
}

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