[LLVMbugs] [Bug 19729] New: List initialization of placement parameter produces spurious complaint regarding deleted copy/move constructors

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=19729

            Bug ID: 19729
           Summary: List initialization of placement parameter produces
                    spurious complaint regarding deleted copy/move
                    constructors
           Product: clang
           Version: 3.4
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++11
          Assignee: unassignedclangbugs at nondot.org
          Reporter: hstong at ca.ibm.com
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified

List initialization by constructor involves no copy/move operation on the
result of the constructor selected by overload resolution; however, when used
in the placement arguments of a new-expression, Clang apparently tries to
perform a copy.

GCC does not have an issue with the deleted copy and move constructors.

### SOURCE:> cat clangListInitNewPlacement.cc 
struct A {
   A(int);
   A(const A &) = delete;
   A(A &&) = delete;
   ~A();
};

struct B {
   static void *operator new(decltype(sizeof(0)), A);
   static void operator delete(void *, A);
};

void bar() {
   new ({0}) B;
}
Return:  0x00:0


### COMPILER INVOCATION AND OUTPUT:> clang++ -std=c++11
clangListInitNewPlacement.cc -c
clangListInitNewPlacement.cc:14:9: error: call to deleted constructor of 'A'
   new ({0}) B;
        ^~
clangListInitNewPlacement.cc:4:4: note: function has been explicitly marked
deleted here
   A(A &&) = delete;
   ^
clangListInitNewPlacement.cc:9:52: note: passing argument to parameter here
   static void *operator new(decltype(sizeof(0)), A);
                                                   ^
1 error generated.
Return:  0x01:1


### EXPECTED OUTPUT:
Clean compile.


### VERSION INFO:> clang++ -v
clang version 3.4 (tags/RELEASE_34/final)
Target: powerpc64-unknown-linux-gnu
Thread model: posix
Found candidate GCC installation: /usr/lib/gcc/ppc64-redhat-linux/4.4.4
Found candidate GCC installation: /usr/lib/gcc/ppc64-redhat-linux/4.4.6
Selected GCC installation: /usr/lib/gcc/ppc64-redhat-linux/4.4.6
Return:  0x00:0

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