Emilio G. Cota <c...@braap.org> writes: > Signed-off-by: Emilio G. Cota <c...@braap.org> > --- > tcg/tcg-op.h | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/tcg/tcg-op.h b/tcg/tcg-op.h > index 52482c0..3ec9f13 100644 > --- a/tcg/tcg-op.h > +++ b/tcg/tcg-op.h > @@ -716,6 +716,16 @@ static inline void tcg_gen_fence_full(void) > tcg_gen_op0(&tcg_ctx, INDEX_op_fence_full); > } > > +#if defined(__i386__) || defined(__x86_64__) || defined(__s390x__) > +static inline void tcg_gen_smp_rmb(void) > +{ } > +#else > +static inline void tcg_gen_smp_rmb(void) > +{ > + tcg_gen_fence_load(); > +} > +#endif
This seems a little pointless wrapping up tcg_gen_fence_load. Could the magic dealing with the backend not be done with something like TCG_TARGET_HAS_fence_load. On the x86/x86_64 backends this could then NOP away. > + > /* QEMU specific operations. */ > > #ifndef TARGET_LONG_BITS -- Alex Bennée