On 1/10/21 6:27 AM, Philippe Mathieu-Daudé wrote:
> The tcg_out* functions are utility routines that may or
> may not be used by a particular backend. Similarly to commit
> 4196dca63b8, mark them with the 'unused' attribute to suppress
> spurious warnings if they aren't used.
> 
> This fixes the build with --enable-tcg-interpreter:
> 
>   [98/151] Compiling C object libqemu-arm-softmmu.fa.p/tcg_tcg.c.o
>   FAILED: libqemu-arm-softmmu.fa.p/tcg_tcg.c.o
>   clang [...] -o libqemu-arm-softmmu.fa.p/tcg_tcg.c.o -c ../tcg/tcg.c
>   ../tcg/tcg.c:136:20: error: unused function 'tcg_out_dupi_vec' 
> [-Werror,-Wunused-function]
> 
> Reported-by: Wataru Ashihara <wata...@wataash.com>
> Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
> ---
>  tcg/tcg.c | 30 +++++++++++++++++++++---------
>  1 file changed, 21 insertions(+), 9 deletions(-)


This does too much to fix that Werror, as all of the other functions are
unconditionally used.

Alternately, I'll re-test and merge my tcg constant branch, which will make
tcg_out_dupi_vec also unconditionally used.  Then we don't need
__attribute__((unused)) at all.


r~

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