pr27336.c: Skip test if the target keeps null pointer checks.

2018-11-08  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* c-c++-common/pr27336.c: Skip test if the target keeps null pointer
	checks.
	* gcc.dg/addr_equal-1.c: Likewise.
	* gcc.dg/tree-ssa/pr78154.c: Likewise.
	* gcc.dg/tree-ssa/vrp111.c: Likewise.

From-SVN: r265926

gcc/testsuite/ChangeLog

 2018-11-08  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
 
+	* c-c++-common/pr27336.c: Skip test if the target keeps null pointer
+	checks.
+	* gcc.dg/addr_equal-1.c: Likewise.
+	* gcc.dg/tree-ssa/pr78154.c: Likewise.
+	* gcc.dg/tree-ssa/vrp111.c: Likewise.
+
+2018-11-08  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
+
 	* lib/gcc-dg.exp (gcc-dg-prune): Add new regexps for when the size of 
 	an output section is too large for a memory region, or a memory
 	region overflows.

gcc/testsuite/c-c++-common/pr27336.c

 /* { dg-do compile } */
 /* { dg-options "-O2 -fdelete-null-pointer-checks -fdump-tree-vrp1" } */
+/* { dg-skip-if "" { keeps_null_pointer_checks } } */
 
 struct B { int x; };
 extern void g3(struct B *that)  __attribute__((nonnull));

gcc/testsuite/gcc.dg/addr_equal-1.c

@@ -4,6 +4,7 @@
 /* { dg-require-alias "" } */
 /* { dg-options "-O2 -fdelete-null-pointer-checks" } */
 /* { dg-skip-if "" { powerpc-ibm-aix* } } */
+/* { dg-skip-if "function pointers can be NULL" { keeps_null_pointer_checks } } */
 void abort (void);
 extern int undef_var0, undef_var1;
 extern __attribute__ ((weak)) int weak_undef_var0;

gcc/testsuite/gcc.dg/tree-ssa/pr78154.c

 /* { dg-do compile } */
 /* { dg-options "-O2 -fdump-tree-evrp-slim -fdelete-null-pointer-checks" } */
+/* { dg-skip-if "" { keeps_null_pointer_checks } } */
 
 void f(void *d, const void *s, __SIZE_TYPE__ n)
 {

gcc/testsuite/gcc.dg/tree-ssa/vrp111.c

 /* { dg-do compile } */
 /* { dg-options "-O2 -fdump-tree-evrp -fdelete-null-pointer-checks" } */
+/* { dg-skip-if "" { keeps_null_pointer_checks } } */
 
 void foo (void *p) __attribute__((nonnull(1)));