[PATCH] Don't copy objects with trivial, deleted copy ctors

[Reid Kleckner]

Hm, this approach fails quickly when I try to compile some simple programs.
 This program doesn't declare any special members:
struct S { int a; };
void foo(S s) { }

On Mon, May 12, 2014 at 4:15 PM, Reid Kleckner <rnk at google.com> wrote:

>   - Review stuff and add a test case for multiple copy ctors
>
> http://reviews.llvm.org/D3660
>
> Files:
>   lib/CodeGen/CGCXXABI.cpp
>   lib/CodeGen/CGCXXABI.h
>   lib/CodeGen/ItaniumCXXABI.cpp
>   lib/CodeGen/MicrosoftCXXABI.cpp
>   test/CodeGenCXX/uncopyable-args.cpp
>
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