[AArch64][tests] Skip cpu-diagnostics tests when overriding -mcpu

	* gcc.target/aarch64/cpu-diagnostics-1.c: Skip if -mcpu is overriden.
	* gcc.target/aarch64/cpu-diagnostics-2.c: Likewise.
	* gcc.target/aarch64/cpu-diagnostics-3.c: Likewise.
	* gcc.target/aarch64/cpu-diagnostics-4.c: Likewise.

From-SVN: r236316

gcc/testsuite/ChangeLog

+2016-05-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* gcc.target/aarch64/cpu-diagnostics-1.c: Skip if -mcpu is overriden.
+	* gcc.target/aarch64/cpu-diagnostics-2.c: Likewise.
+	* gcc.target/aarch64/cpu-diagnostics-3.c: Likewise.
+	* gcc.target/aarch64/cpu-diagnostics-4.c: Likewise.
+
 2016-05-17  Dominique d'Humieres  <dominiq@lps.ens.fr>
 	    Ilya Enkovich  <ilya.enkovich@intel.com>
 

gcc/testsuite/gcc.target/aarch64/cpu-diagnostics-1.c

 /* { dg-error "unknown" "" {target "aarch64*-*-*" } } */
+/* { dg-skip-if "do not override -mcpu" { *-*-* } { "-mcpu=*" } { "" } } */
 /* { dg-options "-O2 -mcpu=dummy" } */
 
 void f ()

gcc/testsuite/gcc.target/aarch64/cpu-diagnostics-2.c

 /* { dg-error "missing" "" {target "aarch64*-*-*" } } */
+/* { dg-skip-if "do not override -mcpu" { *-*-* } { "-mcpu=*" } { "" } } */
 /* { dg-options "-O2 -mcpu=cortex-a53+no" } */
 
 void f ()

gcc/testsuite/gcc.target/aarch64/cpu-diagnostics-3.c

 /* { dg-error "invalid feature" "" {target "aarch64*-*-*" } } */
+/* { dg-skip-if "do not override -mcpu" { *-*-* } { "-mcpu=*" } { "" } } */
 /* { dg-options "-O2 -mcpu=cortex-a53+dummy" } */
 
 void f ()

gcc/testsuite/gcc.target/aarch64/cpu-diagnostics-4.c

 /* { dg-error "missing" "" {target "aarch64*-*-*" } } */
+/* { dg-skip-if "do not override -mcpu" { *-*-* } { "-mcpu=*" } { "" } } */
 /* { dg-options "-O2 -mcpu=+dummy" } */
 
 void f ()