07.06.2014 21:08, Peter Maydell wrote:
> The tcg_out* and tcg_patch* functions are utility routines that may or
> may not be used by a particular backend; mark them with the 'unused'
> attribute to suppress spurious warnings if they aren't used.
>
> Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
> ---
> Do we want to define a QEMU_UNUSED macro in compiler.h? We don't
> seem to have done for the existing uses of this attribute in tree.
>
> tcg/tcg.c | 20 ++++++++++++--------
> 1 file changed, 12 insertions(+), 8 deletions(-)
>
> diff --git a/tcg/tcg.c b/tcg/tcg.c
> index 2c5732d..fe55d05 100644
> --- a/tcg/tcg.c
> +++ b/tcg/tcg.c
> @@ -125,19 +125,20 @@ static TCGRegSet tcg_target_available_regs[2];
> static TCGRegSet tcg_target_call_clobber_regs;
>
> #if TCG_TARGET_INSN_UNIT_SIZE == 1
> -static inline void tcg_out8(TCGContext *s, uint8_t v)
Hm. Those are already #ifdef'ed, is it not enough? Which architectures
do not use functions which _are_ declared/defined?
But I wonder, why to bother at all? This "static inline foo() {..}" idiom
is very common in header files, to define a function which may or may not
be used, and no compiler warns about these.
Thanks,
/mjt
