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-rw-r--r--gcc/testsuite/gcc.misc-tests/gcov-8.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.misc-tests/gcov-8.c b/gcc/testsuite/gcc.misc-tests/gcov-8.c
new file mode 100644
index 000000000..7223bde83
--- /dev/null
+++ b/gcc/testsuite/gcc.misc-tests/gcov-8.c
@@ -0,0 +1,47 @@
+/* Check that gcov correctly rounds nearly zero to nonzero and nearly
+ 100 to not-100.
+
+ Copyright (C) 2002 Free Software Foundation, Inc.
+ Contributed by Nathan Sidwell <nathan@codesourcery.com>
+*/
+
+/* { dg-options "-fprofile-arcs -ftest-coverage" } */
+/* { dg-do run { target native } } */
+
+int proxy (int i)
+{
+ return i;
+}
+
+int foo (int i)
+{
+ if (i > 0) /* branch(1) */
+ return proxy (1);
+ else if (i < 0) /* branch(100) */
+ return proxy (-1);
+ else
+ return proxy (0);
+}
+
+int baz (int i)
+{
+ if (i == 0) /* branch(99) */
+ return proxy (0);
+ else if (i > 0) /* branch(0)*/
+ return proxy (1);
+ else
+ return proxy (-1);
+}
+
+int main ()
+{
+ int t = 0;
+ int ix;
+
+ for (ix = 0; ix != 1000; ix++)
+ t += foo (ix) + baz (ix);
+
+ return t == 0;
+}
+
+/* { dg-final { run-gcov branches {-b gcov-8.c } } } */