* gcc.c-torture/execute/20041112-1.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@90522 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 44 insertions, 0 deletions

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 87421355976..f04c8abaf5a 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2004-11-12  Eric Botcazou  <ebotcazou@act-europe.fr>
+
+	* gcc.c-torture/execute/20041112-1.c: New test.
+
 2004-11-11  Janis Johnson  <janis187@us.ibm.com>
 
 	* lib/gcc-dg.exp (dg-target-list): New.
diff --git a/gcc/testsuite/gcc.c-torture/execute/20041112-1.c b/gcc/testsuite/gcc.c-torture/execute/20041112-1.c
new file mode 100644
index 00000000000..0c6251ca34e
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20041112-1.c
@@ -0,0 +1,40 @@
+/* This was failing on Alpha because the comparison (p != -1) was rewritten
+   as (p+1 != 0) and p+1 isn't allowed to wrap for pointers.  */
+
+extern void abort(void);
+
+typedef __SIZE_TYPE__ size_t;
+
+int global;
+
+static void *foo(int p)
+{
+  if (p == 0)
+   {
+      global++;
+      return &global;
+   }
+
+  return (void *)(size_t)-1;
+}
+
+int bar(void)
+{
+  void *p;
+
+  p = foo(global);
+  if (p != (void *)(size_t)-1)
+    return 1;
+
+  global++;
+  return 0;
+}
+
+int main(void)
+{
+  global = 1;
+  if (bar () != 0)
+    abort();
+  
+  return 0;
+}