https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95964
ktkachov at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2021-02-10 Ever confirmed|0 |1 CC| |ktkachov at gcc dot gnu.org Status|UNCONFIRMED |NEW --- Comment #3 from ktkachov at gcc dot gnu.org --- In GCC 11 these builtins have do get a fnspec attribute and the start pointer is hoisted. But this happens only with -fno-trapping-math (part of -Ofast) because the operation can raise FP exceptions and therefore is considered to modify global state unless -fnop-trapping-math. Is that good enough for this PR or do we want more something more fine-grained?