Testcase for loop reversal (check_dbra_loop) bug.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@19031 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 20 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/ChangeLog b/gcc/testsuite/gcc.c-torture/ChangeLog
index c73d2613fd5..2641bac61f1 100644
--- a/gcc/testsuite/gcc.c-torture/ChangeLog
+++ b/gcc/testsuite/gcc.c-torture/ChangeLog
@@ -1,3 +1,7 @@
+Tue Apr  7 12:01:24 1998  Jim Wilson  <wilson@cygnus.com>
+
+	* execute/980407-1.c: New test from Joern Rennecke.
+
 Fri Apr  3 12:27:49 1998  Jim Wilson  <wilson@cygnus.com>
 
 	* compile/980329-1.c: New test.
diff --git a/gcc/testsuite/gcc.c-torture/execute/980407-1.c b/gcc/testsuite/gcc.c-torture/execute/980407-1.c
new file mode 100644
index 00000000000..0b06ff98f52
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/980407-1.c
@@ -0,0 +1,16 @@
+int
+f()
+{
+  int j = 1;
+  long i;
+  for (i = -0x70000000L; i < 0x60000000L; i += 0x10000000L) j <<= 1;
+  return j;
+}
+
+int
+main ()
+{
+  if (f () != 8192)
+    abort ();
+  return 0;
+}