Quuxplusone added inline comments.
================ Comment at: clang/test/CodeGenCXX/attr-no-zero-initializer.cpp:40 +// CHECK: @unt = global %struct.nontrivial undef +nontrivial unt [[clang::no_zero_initializer]]; ---------------- Can you explain a bit about how this interacts with C++ constructors? Will this object not have its constructor called at startup; or is it that the constructor will be called but the memory simply won't have been zeroed //before// calling the constructor? For [P1144 relocation](https://wg21.link/p1144) (D50114, D61761, etc), Anton Zhilin and I have been discussing the possibility of a similar-sounding attribute that would skip the constructor of a local variable altogether, allowing someone to write e.g. ``` T relocate(T *source) { [[unconstructed]] T result; memcpy(result, source, sizeof(T)); return result; } ``` If your attribute does exactly that, then I'm interested. If your attribute doesn't do that, but is occupying real estate that //implies// that it does, then I'm also interested. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D74361/new/ https://reviews.llvm.org/D74361 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
