Wait, are you saying that Apple is hostile towards the GPL because it contributed developer resources towards GPLv2 projects and shipped hardware with preinstal

Wait, are you saying that Apple is hostile towards the GPL because it contributed developer resources towards GPLv2 projects and shipped hardware with preinstalled GPLv2 binaries, and refuses to spend developer resources on contributing to GPLv3 projects? And are you blaming Apple for not devoting resources to Valgrind? From my perspective, GCC was becoming a tangled mess of code due to politically-motivated sabotage by the FSF. Nothing like LLVM bitcode would ever have made it into GCC because it would make GCC too modular, and because the FSF not only supports open-source software but opposes closed-source software, it is against modularity (since someone could potentially distribute closed-source frontend to GCC, if it were modular). This is not mere speculation, people have tried to fix architectural issues in GCC in the past and been shot down for explicitly this reason. You could even say this behavior is hostile. But this is nothing special. This is just another iteration of the conflict between BSD and GPL.