aarch64: fix gcc.target/aarch64/pcs_attribute-2.c on non-gnu targets

Move the ifunc symbol tests into a separate file with dg-require-ifunc.
And added a base pcs ifunc symbol to the test for completeness.

gcc/testsuite/ChangeLog:

	* gcc.target/aarch64/pcs_attribute-2.c: Remove ifunc usage.
	* gcc.target/aarch64/pcs_attribute-3.c: New test.

From-SVN: r272414

gcc/testsuite/ChangeLog

+2019-06-18  Szabolcs Nagy  <szabolcs.nagy@arm.com>
+
+	* gcc.target/aarch64/pcs_attribute-2.c: Remove ifunc usage.
+	* gcc.target/aarch64/pcs_attribute-3.c: New test.
+
 2019-06-18  Alejandro Martinez  <alejandro.martinezvicente@arm.com>
 	* gcc.target/aarch64/sve/fadda_1.c: New test.
 

gcc/testsuite/gcc.target/aarch64/pcs_attribute-2.c

@@ -53,21 +53,6 @@ ATTR void bar_def_vpcs (void)
 {
 }
 
-static void (*f_ifunc_resolver ()) (void)
-{
-  return (void (*)(void))f_local_vpcs;
-}
-
-__attribute__ ((ifunc ("f_ifunc_resolver")))
-ATTR void f_ifunc_vpcs (void);
-
-__attribute__ ((visibility ("hidden")))
-__attribute__ ((ifunc ("f_ifunc_resolver")))
-ATTR void f_hidden_ifunc_vpcs (void);
-
-__attribute__ ((ifunc ("f_ifunc_resolver")))
-ATTR static void f_local_ifunc_vpcs (void);
-
 void (*refs_basepcs[]) (void) = {
 	f_undef_basepcs,
 	f_def_basepcs,
@@ -86,9 +71,6 @@ void (*ATTR refs_vpcs[]) (void) = {
 	f_local_weakref_def_vpcs,
 	bar_undef_vpcs,
 	bar_def_vpcs,
-	f_ifunc_vpcs,
-	f_hidden_ifunc_vpcs,
-	f_local_ifunc_vpcs,
 };
 
 /* Note: local symbols don't need .variant_pcs, but gcc generates it, so
@@ -109,6 +91,3 @@ void (*ATTR refs_vpcs[]) (void) = {
 /* { dg-final { scan-assembler-times {\.variant_pcs\tf_local_weakref_def_vpcs} 1 } } */
 /* { dg-final { scan-assembler-times {\.variant_pcs\tf_undef_renamed_vpcs} 1 } } */
 /* { dg-final { scan-assembler-times {\.variant_pcs\tf_def_renamed_vpcs} 1 } } */
-/* { dg-final { scan-assembler-times {\.variant_pcs\tf_ifunc_vpcs} 1 } } */
-/* { dg-final { scan-assembler-times {\.variant_pcs\tf_hidden_ifunc_vpcs} 1 } } */
-/* { dg-final { scan-assembler-times {\.variant_pcs\tf_local_ifunc_vpcs} 1 } } */

gcc/testsuite/gcc.target/aarch64/pcs_attribute-3.c

+/* { dg-do compile } */
+/* { dg-require-ifunc "" } */
+/* { dg-require-effective-target aarch64_variant_pcs } */
+
+/* Test that .variant_pcs is emitted for vector PCS symbol references.  */
+
+#define ATTR __attribute__ ((aarch64_vector_pcs))
+
+static void f_local_basepcs (void)
+{
+}
+
+static void (*f_ifunc_basepcs_resolver ()) (void)
+{
+  return (void (*)(void))f_local_basepcs;
+}
+
+__attribute__ ((ifunc ("f_ifunc_basepcs_resolver")))
+void f_ifunc_basepcs (void);
+
+ATTR static void f_local_vpcs (void)
+{
+}
+
+static void (*f_ifunc_vpcs_resolver ()) (void)
+{
+  return (void (*)(void))f_local_vpcs;
+}
+
+__attribute__ ((ifunc ("f_ifunc_vpcs_resolver")))
+ATTR void f_ifunc_vpcs (void);
+
+__attribute__ ((visibility ("hidden")))
+__attribute__ ((ifunc ("f_ifunc_vpcs_resolver")))
+ATTR void f_hidden_ifunc_vpcs (void);
+
+__attribute__ ((ifunc ("f_ifunc_vpcs_resolver")))
+ATTR static void f_local_ifunc_vpcs (void);
+
+void (*refs_basepcs[]) (void) = {
+	f_ifunc_basepcs,
+};
+
+void (*ATTR refs_vpcs[]) (void) = {
+	f_ifunc_vpcs,
+	f_hidden_ifunc_vpcs,
+	f_local_ifunc_vpcs,
+};
+
+/* Note: local symbols don't need .variant_pcs, but gcc generates it, so
+   we check them here.  */
+
+/* { dg-final { scan-assembler-not {\.variant_pcs\tf_local_basepcs} } } */
+/* { dg-final { scan-assembler-not {\.variant_pcs\tf_ifunc_basepcs} } } */
+/* { dg-final { scan-assembler-times {\.variant_pcs\tf_local_vpcs} 1 } } */
+/* { dg-final { scan-assembler-times {\.variant_pcs\tf_ifunc_vpcs} 1 } } */
+/* { dg-final { scan-assembler-times {\.variant_pcs\tf_hidden_ifunc_vpcs} 1 } } */
+/* { dg-final { scan-assembler-times {\.variant_pcs\tf_local_ifunc_vpcs} 1 } } */