2012-09-19 Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>

        * gcc.target/powerpc/ppc-get-timebase.c: New file.
        * gcc.target/powerpc/ppc-mftb.c: New file.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@191492 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 18 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/powerpc/ppc-mftb.c b/gcc/testsuite/gcc.target/powerpc/ppc-mftb.c
new file mode 100644
index 00000000000..f64e45d1dad
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/ppc-mftb.c
@@ -0,0 +1,18 @@
+/* { dg-do run { target { powerpc*-*-* } } } */
+
+/* Test if __builtin_ppc_mftb () is compatible with the current processor and
+   if it's changing between reads.  A read failure might indicate a Power
+   ISA or binutils change.  */
+
+int
+main (void)
+{
+  unsigned long t = __builtin_ppc_mftb ();
+  int j;
+
+  for (j = 0; j < 1000000; j++)
+    if (t != __builtin_ppc_mftb ())
+      return 0;
+
+  return 1;
+}