[Committed][testsuite] Ensure vrnd* tests run on ARMv8 cores

[Wilco Dijkstra]

The recently added gcc.target/aarch64/advsimd-intrinsics/vrnd*.c tests cause
failures due to accidentally running on non-ARMv8 hardware - the target check
arm_v8_neon_ok is correct for compilation tests but should be arm_v8_neon_hw
for execution tests.  Fix this and also change arm_v8_neon_hw to return
true for AArch64 so these tests are run on AArch64 too.

Committed as trivial patch in r237653.

ChangeLog:
2016-06-21  Wilco Dijkstra  <wdijk...@arm.com>

    gcc/testsuite/

        * gcc.target/aarch64/advsimd-intrinsics/vrnd.c
        (dg-require-effective-target): Use arm_v8_neon_hw.
        * gcc.target/aarch64/advsimd-intrinsics/vrnda.c
        (dg-require-effective-target): Likewise.
        * gcc.target/aarch64/advsimd-intrinsics/vrndm.c
        (dg-require-effective-target): Likewise.
        * gcc.target/aarch64/advsimd-intrinsics/vrndn.c
        (dg-require-effective-target): Likewise.
        * gcc.target/aarch64/advsimd-intrinsics/vrndp.c
        (dg-require-effective-target): Likewise.
        * gcc.target/aarch64/advsimd-intrinsics/vrndx.c
        (dg-require-effective-target): Likewise.
        * lib/target-supports.exp (check_runtime arm_v8_neon_hw_available):
        Add AArch64 check.
--
diff --git a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrnd.c 
b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrnd.c
index 
5f492d41bffb49fd6811a31aacb86d8a949ab0e6..d97a3a25ee5fb0a6021f0d75c4d653bff0d59bb7
 100644
--- a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrnd.c
+++ b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrnd.c
@@ -1,4 +1,4 @@
-/* { dg-require-effective-target arm_v8_neon_ok } */
+/* { dg-require-effective-target arm_v8_neon_hw } */
 /* { dg-add-options arm_v8_neon } */
 
 #include <arm_neon.h>
diff --git a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrnda.c 
b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrnda.c
index 
816fd28dd19d6f0591619c3fa3ca06b7e4d99c3e..ff2bdc0563fc3a15115ae6121408f134bb9e81cd
 100644
--- a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrnda.c
+++ b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrnda.c
@@ -1,4 +1,4 @@
-/* { dg-require-effective-target arm_v8_neon_ok } */
+/* { dg-require-effective-target arm_v8_neon_hw } */
 /* { dg-add-options arm_v8_neon } */
 
 #include <arm_neon.h>
diff --git a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndm.c 
b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndm.c
index 
029880c21f6fdea148ec6a41a7a438cd08eeafe3..eae9f61c5859b7f7add3dd01ff0edfd0ae8cd75b
 100644
--- a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndm.c
+++ b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndm.c
@@ -1,4 +1,4 @@
-/* { dg-require-effective-target arm_v8_neon_ok } */
+/* { dg-require-effective-target arm_v8_neon_hw } */
 /* { dg-add-options arm_v8_neon } */
 
 #include <arm_neon.h>
diff --git a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndn.c 
b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndn.c
index 
571243c49298ec154c55932b611eb3bcc42efe60..c6c707d67655cc648e0526a489046411a065675f
 100644
--- a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndn.c
+++ b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndn.c
@@ -1,4 +1,4 @@
-/* { dg-require-effective-target arm_v8_neon_ok } */
+/* { dg-require-effective-target arm_v8_neon_hw } */
 /* { dg-add-options arm_v8_neon } */
 
 #include <arm_neon.h>
diff --git a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndp.c 
b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndp.c
index 
ff4771c87892d202732e9eefa9b241c1dec1c9eb..e94eb6b76221c7b229229e1286eb910b7eef740f
 100644
--- a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndp.c
+++ b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndp.c
@@ -1,4 +1,4 @@
-/* { dg-require-effective-target arm_v8_neon_ok } */
+/* { dg-require-effective-target arm_v8_neon_hw } */
 /* { dg-add-options arm_v8_neon } */
 
 #include <arm_neon.h>
diff --git a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndx.c 
b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndx.c
index 
ff2357bebf3c01d723229c43d35a747d2bbe1315..0d2a63ef26c75f684ed17689a37d1b8ada0b043f
 100644
--- a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndx.c
+++ b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vrndx.c
@@ -1,4 +1,4 @@
-/* { dg-require-effective-target arm_v8_neon_ok } */
+/* { dg-require-effective-target arm_v8_neon_hw } */
 /* { dg-add-options arm_v8_neon } */
 
 #include <arm_neon.h>
diff --git a/gcc/testsuite/lib/target-supports.exp 
b/gcc/testsuite/lib/target-supports.exp
index 
9876bb5f4ce539628c451f77e21415507830c4f6..2a8feb8f13e0130036771a73a40015c905c21993
 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -3417,11 +3417,17 @@ proc check_effective_target_arm_v8_neon_hw { } {
        int
        main (void)
        {
-         float32x2_t a;
+         float32x2_t a = { 1.0f, 2.0f };
+         #ifdef __ARM_ARCH_ISA_A64
+         asm ("frinta %0.2s, %1.2s"
+             : "=w" (a)
+             : "w" (a));
+         #else
          asm ("vrinta.f32 %P0, %P1"
               : "=w" (a)
               : "0" (a));
-         return 0;
+         #endif
+         return a[0] == 2.0f;
        }
     } [add_options_for_arm_v8_neon ""]]
 }