[glibc/azanella/clang] misc: Disable some atomic tests on clang

[Adhemerval Zanella <azanella@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b9cf19793ba75c8e70e296e42bfb3f8ed5f537dc

commit b9cf19793ba75c8e70e296e42bfb3f8ed5f537dc
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Fri Mar 25 11:22:44 2022 -0300

    misc: Disable some atomic tests on clang
    
    clang warns on some atomic macros, disable for now.

Diff:
---
 misc/tst-atomic.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/misc/tst-atomic.c b/misc/tst-atomic.c
index 6d681a7bfd..2212ef66ce 100644
--- a/misc/tst-atomic.c
+++ b/misc/tst-atomic.c
@@ -459,6 +459,7 @@ do_test (void)
       ret = 1;
     }
 
+#ifndef __clang__
   mem = 2;
   if (catomic_exchange_and_add (&mem, 11) != 2
       || mem != 13)
@@ -466,6 +467,7 @@ do_test (void)
       puts ("catomic_exchange_and_add test failed");
       ret = 1;
     }
+#endif
 
   mem = -21;
   catomic_add (&mem, 22);
@@ -483,12 +485,14 @@ do_test (void)
       ret = 1;
     }
 
+#ifndef __clang__
   mem = 2;
   if (catomic_increment_val (&mem) != 3)
     {
       puts ("catomic_increment_val test failed");
       ret = 1;
     }
+#endif
 
   mem = 17;
   catomic_decrement (&mem);
@@ -498,11 +502,13 @@ do_test (void)
       ret = 1;
     }
 
+#ifndef __clang__
   if (catomic_decrement_val (&mem) != 15)
     {
       puts ("catomic_decrement_val test failed");
       ret = 1;
     }
+#endif
 
   /* Tests for C11-like atomics.  */
   mem = 11;