[PATCH-for-10.2 2/2] tcg/tci: Disable Int128 support

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

Disable Int128 on TCI, otherwise build fails:

  In file included from ../../tcg/optimize.c:29:
  In file included from include/tcg/tcg-op-common.h:12:
  In file included from include/exec/helper-proto-common.h:10:
  In file included from include/qemu/atomic128.h:62:
  In file included from host/include/aarch64/host/atomic128-cas.h.inc:16:
  host/include/generic/host/atomic128-cas.h.inc:37:12: error: initializing 'Int128' (aka 'struct Int128') with an expression of incompatible type '__int128_t' (aka '__int128')
     37 |     Int128 old = *ptr_align;
        |            ^     ~~~~~~~~~~
  host/include/generic/host/atomic128-cas.h.inc:39:52: warning: incompatible pointer types passing 'Int128 *' (aka 'struct Int128 *') to parameter of type '__int128_t *' (aka '__int128 *') [-Wincompatible-pointer-types]
     39 |     while (!__atomic_compare_exchange_n(ptr_align, &old, new, true,
        |                                                    ^~~~
  host/include/generic/host/atomic128-cas.h.inc:39:58: error: passing 'Int128' (aka 'struct Int128') to parameter of incompatible type '__int128_t' (aka '__int128')
     39 |     while (!__atomic_compare_exchange_n(ptr_align, &old, new, true,
        |                                                          ^~~
  host/include/generic/host/atomic128-cas.h.inc:50:12: error: initializing 'Int128' (aka 'struct Int128') with an expression of incompatible type '__int128_t' (aka '__int128')
     50 |     Int128 old = *ptr_align;
        |            ^     ~~~~~~~~~~
  host/include/generic/host/atomic128-cas.h.inc:52:62: error: invalid operands to binary expression ('Int128' (aka 'struct Int128') and 'Int128')
     52 |     while (!__atomic_compare_exchange_n(ptr_align, &old, old & val, true,
        |                                                          ~~~ ^ ~~~
  host/include/generic/host/atomic128-cas.h.inc:63:12: error: initializing 'Int128' (aka 'struct Int128') with an expression of incompatible type '__int128_t' (aka '__int128')
     63 |     Int128 old = *ptr_align;
        |            ^     ~~~~~~~~~~
  host/include/generic/host/atomic128-cas.h.inc:65:62: error: invalid operands to binary expression ('Int128' (aka 'struct Int128') and 'Int128')
     65 |     while (!__atomic_compare_exchange_n(ptr_align, &old, old | val, true,
        |                                                          ~~~ ^ ~~~
  1 warning and 6 errors generated.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index d9293294d8e..692a62e6c18 100644
--- a/meson.build
+++ b/meson.build
@@ -2996,7 +2996,7 @@ config_host_data.set('CONFIG_ATOMIC64', cc.links('''
 
 # has_int128_type is set to false on Emscripten to avoid errors by libffi
 # during runtime.
-has_int128_type = host_os != 'emscripten' and cc.compiles('''
+has_int128_type = host_os != 'emscripten' and tcg_arch != 'tci' and cc.compiles('''
   __int128_t a;
   __uint128_t b;
   int main(void) { b = a; }''')
-- 
2.51.0