obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 58 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/rx/interrupts.c b/gcc/testsuite/gcc.target/rx/interrupts.c
new file mode 100644
index 000000000..cdc4903de
--- /dev/null
+++ b/gcc/testsuite/gcc.target/rx/interrupts.c
@@ -0,0 +1,58 @@
+/* { dg-do compile } */
+/* { dg-options "-mint-register=3 -msave-acc-in-interrupts" } */
+
+/* Verify that the RX specific function attributes work.  */
+
+void fast_interrupt (void) __attribute__((__fast_interrupt__));
+void interrupt (void) __attribute__((__interrupt__));
+int naked (int) __attribute__((__naked__));
+
+int flag = 0;
+
+/* Fast interrupt handler.  Only uses registers marked as fixed
+   by the -fixed-xxx gcc command line option.  Returns via RTFI.  */
+
+void
+fast_interrupt (void)
+{
+  flag = 1;
+}
+
+/* Interrupt handler.  Must preserve any register it uses, even
+   call clobbered ones.  Returns via RTE.  */
+
+void
+interrupt (void)
+{
+  switch (flag)
+    {
+    case 0:
+      flag = -1;
+      break;
+    case 1:
+    case 2:
+    case 4:
+      flag = flag - 2;
+      break;
+    case 5:
+    case 7:
+    case 6:
+      flag ^= 3;
+      break;
+    default:
+      naked (flag * 2);
+      break;
+    }
+}
+
+/* Naked function.  The programmer must supply the function's
+   prologue and epilogue instructions.  */
+
+int
+naked (int arg)
+{
+  flag = arg;
+}
+
+/* { dg-final { scan-assembler "rtfi" } } */
+/* { dg-final { scan-assembler "rte" } } */