CodeGen-level implementation. Instead of adding an attribute to clang's
FunctionDecl, add the IR attribute directly. This means a module built with
this flag is now compatible with code built without it and vice versa.
This change also results in the 'noalias' attribute no longer being added to
calls to operator new in the IR; it's now only added to the declaration. It
also fixes a bug where we failed to add the attribute to the 'nothrow' versions
(because we didn't implicitly declare them, there was no good time to inject a
fake attribute).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@265728 91177308-0d34-0410-b5e6-96231b3b80d8
trailing elements as a single loop, rather than sometimes emitting a nest of
several loops. This fixes a bug where CodeGen would sometimes try to emit an
expression with the wrong type for the element being initialized. Plus various
other minor cleanups to the IR produced for array new initialization.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@210079 91177308-0d34-0410-b5e6-96231b3b80d8
Richard Smith