[PATCH] PR78465 Remove runtime tests for <atomic> macros

[Jonathan Wakely]

Andrew MacLeod did some digging and foudn that this test was changed
from using #if to using a runtime if and abort() because the LOCK_FREE
macros resolved to runtime calls at one point. However, they later got
changed to predefined macros, and so can be changed back to using #if.

This should fix the regression on Solaris, where the mismatched
abort() declaration causes it to FAIL.

	PR libstdc++/78465
	* testsuite/29_atomics/headers/atomic/macros.cc: Replace runtime tests
	with preprocessor conditions.

Tested x86_64-linux, committed to trunk.

-------------- next part --------------
commit e6dcd511c9d9641e15f637cf1337149abf97c1e4
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Nov 22 16:17:52 2016 +0000

    PR78465 Remove runtime tests for <atomic> macros
    
    	PR libstdc++/78465
    	* testsuite/29_atomics/headers/atomic/macros.cc: Replace runtime tests
    	with preprocessor conditions.

diff --git a/libstdc++-v3/testsuite/29_atomics/headers/atomic/macros.cc b/libstdc++-v3/testsuite/29_atomics/headers/atomic/macros.cc
index 9ef8c78..4cb3e1a 100644
--- a/libstdc++-v3/testsuite/29_atomics/headers/atomic/macros.cc
+++ b/libstdc++-v3/testsuite/29_atomics/headers/atomic/macros.cc
@@ -1,4 +1,4 @@
-// { dg-do compile { target c++11 } }
+// { dg-do preprocess { target c++11 } }
 
 // Copyright (C) 2008-2016 Free Software Foundation, Inc.
 //
@@ -21,42 +21,61 @@
 
 #ifndef ATOMIC_BOOL_LOCK_FREE 
 # error "ATOMIC_BOOL_LOCK_FREE must be a macro"
+#elif ATOMIC_BOOL_LOCK_FREE != 1 && ATOMIC_BOOL_LOCK_FREE != 2
+# error "ATOMIC_BOOL_LOCK_FREE must be 1 or 2"
 #endif
 
 #ifndef ATOMIC_CHAR_LOCK_FREE 
 # error "ATOMIC_CHAR_LOCK_FREE must be a macro"
+#elif ATOMIC_CHAR_LOCK_FREE != 1 && ATOMIC_CHAR_LOCK_FREE != 2
+# error "ATOMIC_CHAR_LOCK_FREE must be 1 or 2"
 #endif
 
 #ifndef ATOMIC_CHAR16_T_LOCK_FREE 
 # error "ATOMIC_CHAR16_T_LOCK_FREE must be a macro"
+#elif ATOMIC_CHAR16_T_LOCK_FREE != 1 && ATOMIC_CHAR16_T_LOCK_FREE != 2
 #endif
 
 #ifndef ATOMIC_CHAR32_T_LOCK_FREE 
 # error "ATOMIC_CHAR32_T_LOCK_FREE must be a macro"
+#elif ATOMIC_CHAR32_T_LOCK_FREE != 1 && ATOMIC_CHAR32_T_LOCK_FREE != 2
+# error "ATOMIC_CHAR32_T_LOCK_FREE must be 1 or 2"
 #endif
 
 #ifndef ATOMIC_WCHAR_T_LOCK_FREE 
 # error "ATOMIC_WCHAR_T_LOCK_FREE must be a macro"
+#elif ATOMIC_WCHAR_T_LOCK_FREE != 1 && ATOMIC_WCHAR_T_LOCK_FREE != 2
+# error "ATOMIC_WCHAR_T_LOCK_FREE must be 1 or 2"
 #endif
 
 #ifndef ATOMIC_SHORT_LOCK_FREE 
 # error "ATOMIC_SHORT_LOCK_FREE must be a macro"
+#elif ATOMIC_SHORT_LOCK_FREE != 1 && ATOMIC_SHORT_LOCK_FREE != 2
+# error "ATOMIC_SHORT_LOCK_FREE must be 1 or 2"
 #endif
 
 #ifndef ATOMIC_INT_LOCK_FREE 
 # error "ATOMIC_INT_LOCK_FREE must be a macro"
+#elif ATOMIC_INT_LOCK_FREE != 1 && ATOMIC_INT_LOCK_FREE != 2
+# error "ATOMIC_INT_LOCK_FREE must be 1 or 2"
 #endif
 
 #ifndef ATOMIC_LONG_LOCK_FREE 
 # error "ATOMIC_LONG_LOCK_FREE must be a macro"
+#elif ATOMIC_LONG_LOCK_FREE != 1 && ATOMIC_LONG_LOCK_FREE != 2
+# error "ATOMIC_LONG_LOCK_FREE must be 1 or 2"
 #endif
 
 #ifndef ATOMIC_LLONG_LOCK_FREE 
 # error "ATOMIC_LLONG_LOCK_FREE must be a macro"
+#elif ATOMIC_LLONG_LOCK_FREE != 1 && ATOMIC_LLONG_LOCK_FREE != 2
+# error "ATOMIC_LLONG_LOCK_FREE must be 1 or 2"
 #endif
 
 #ifndef ATOMIC_POINTER_LOCK_FREE 
 # error "ATOMIC_POINTER_LOCK_FREE must be a macro"
+#elif ATOMIC_POINTER_LOCK_FREE != 1 && ATOMIC_POINTER_LOCK_FREE != 2
+# error "ATOMIC_POINTER_LOCK_FREE must be 1 or 2"
 #endif
 
 #ifndef ATOMIC_FLAG_INIT
@@ -66,49 +85,3 @@
 #ifndef ATOMIC_VAR_INIT
     #error "ATOMIC_VAR_INIT_must_be_a_macro"
 #endif
-
-
-extern void abort(void);
-
-int main ()
-{
-#if (ATOMIC_BOOL_LOCK_FREE != 1 && ATOMIC_BOOL_LOCK_FREE != 2)
-   abort ();
-#endif
-
-#if (ATOMIC_CHAR_LOCK_FREE != 1 && ATOMIC_CHAR_LOCK_FREE != 2)
-   abort ();
-#endif
-
-#if (ATOMIC_CHAR16_T_LOCK_FREE != 1 && ATOMIC_CHAR16_T_LOCK_FREE != 2)
-   abort ();
-#endif
-
-#if (ATOMIC_CHAR32_T_LOCK_FREE != 1 && ATOMIC_CHAR32_T_LOCK_FREE != 2)
-   abort ();
-#endif
-
-#if (ATOMIC_WCHAR_T_LOCK_FREE != 1 && ATOMIC_WCHAR_T_LOCK_FREE != 2)
-   abort ();
-#endif
-
-#if (ATOMIC_SHORT_LOCK_FREE != 1 && ATOMIC_SHORT_LOCK_FREE != 2)
-   abort ();
-#endif
-
-#if (ATOMIC_INT_LOCK_FREE != 1 && ATOMIC_INT_LOCK_FREE != 2)
-   abort ();
-#endif
-
-#if (ATOMIC_LONG_LOCK_FREE != 1 && ATOMIC_LONG_LOCK_FREE != 2)
-   abort ();
-#endif
-
-#if (ATOMIC_LLONG_LOCK_FREE != 1 && ATOMIC_LLONG_LOCK_FREE != 2)
-   abort ();
-#endif
-
-#if (ATOMIC_POINTER_LOCK_FREE != 1 && ATOMIC_POINTER_LOCK_FREE != 2)
-   abort ();
-#endif
-}