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Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/20080522-1.c')
-rw-r--r--gcc/testsuite/gcc.c-torture/execute/20080522-1.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/20080522-1.c b/gcc/testsuite/gcc.c-torture/execute/20080522-1.c
new file mode 100644
index 000000000..75bc533f5
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20080522-1.c
@@ -0,0 +1,43 @@
+/* This testcase is to make sure we have i in referenced vars and that we
+ properly compute aliasing for the loads and stores. */
+
+extern void abort (void);
+
+static int i;
+static int *p = &i;
+
+int __attribute__((noinline))
+foo(int *q)
+{
+ *p = 1;
+ *q = 2;
+ return *p;
+}
+
+int __attribute__((noinline))
+bar(int *q)
+{
+ *q = 2;
+ *p = 1;
+ return *q;
+}
+
+int main()
+{
+ int j = 0;
+
+ if (foo(&i) != 2)
+ abort ();
+ if (bar(&i) != 1)
+ abort ();
+ if (foo(&j) != 1)
+ abort ();
+ if (j != 2)
+ abort ();
+ if (bar(&j) != 2)
+ abort ();
+ if (j != 2)
+ abort ();
+
+ return 0;
+}