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: [email protected]
Reporter: [email protected]
CC: [email protected]
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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