https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86800
--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> --- Hmm, at https://nvidia.custhelp.com/app/answers/detail/a_id/4610 I read: ... NVIDIA GeForce Experience (GFE) response to CPU speculative side channel vulnerabilities - CVE-2017-5753, CVE-2017-5715, CVE-2017-5754 Bulletin Summary ... NVIDIA believes our GPU hardware is immune to the reported security issue. ... So I think we can define this, and be done with it: ... #undef TARGET_HAVE_SPECULATION_SAFE_VALUE #define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed. ...