On Mon, May 01, 2017 at 11:00:58PM +0200, René Scharfe wrote: > Am 01.05.2017 um 21:22 schrieb Jeff King: > > On Mon, May 01, 2017 at 01:23:28PM +0200, René Scharfe wrote: > > > I can only get gcc and clang to call memcpy instead of inlining it by > > > specifying -fno-builtin. Do you use that option? If yes, why? (Just > > > curious.) > > > > I do my normal edit-compile cycles with -O0 because it's fast, and > > because it makes debugging much easier. > > GCC and Clang still inline memcpy with -O0 alone (at least the versions > I tested).
I just checked the assembler output and confirmed that is the case for my builds, even with -O0. Which probably explains why I wasn't able to replicate Duy's valgrind error in the first place. -Peff
