Test -fbranch-probabilities with computed gotos.

From-SVN: r45528

1 files changed, 42 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.misc-tests/bprob-2.c b/gcc/testsuite/gcc.misc-tests/bprob-2.c
new file mode 100644
index 0000000..4615b34
--- /dev/null
+++ b/gcc/testsuite/gcc.misc-tests/bprob-2.c
@@ -0,0 +1,42 @@
+/* Test profile-directed block ordering with computed gotos.
+ *
+   This is the same as test gcc.c-torture/execute/980526-1.c and
+   gcc.misc-tests/gcov-3.c */
+
+int expect_do1 = 1, expect_do2 = 2;
+ 
+static int doit(int x){
+  __label__ lbl1;
+  __label__ lbl2;
+  static int jtab_init = 0;
+  static void *jtab[2];
+ 
+  if(!jtab_init) {
+    jtab[0] = &&lbl1;
+    jtab[1] = &&lbl2;
+    jtab_init = 1;
+  }
+  goto *jtab[x];
+lbl1:
+  return 1;
+lbl2:
+  return 2;
+}
+ 
+static void do1(void) {
+  if (doit(0) != expect_do1)
+    abort ();
+}
+ 
+static void do2(void){
+  if (doit(1) != expect_do2)
+    abort ();
+}
+ 
+int main(void){
+#ifndef NO_LABEL_VALUES
+  do1();
+  do2();
+#endif
+  exit(0);
+}