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Diffstat (limited to 'SingleSource/Regression/C/gcc-c-torture/execute/pr15262.c')
-rw-r--r--SingleSource/Regression/C/gcc-c-torture/execute/pr15262.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/SingleSource/Regression/C/gcc-c-torture/execute/pr15262.c b/SingleSource/Regression/C/gcc-c-torture/execute/pr15262.c
new file mode 100644
index 00000000..8959218b
--- /dev/null
+++ b/SingleSource/Regression/C/gcc-c-torture/execute/pr15262.c
@@ -0,0 +1,47 @@
+/* We used to mis-compile this testcase as we did not know that
+ &a+offsetof(b,a) was the same as &a.b */
+struct A
+{
+ int t;
+ int i;
+};
+
+void
+bar (float *p)
+{
+ *p = 5.2;
+}
+
+int
+foo(struct A *locp, int i, int str)
+{
+ float f, g, *p;
+ int T355;
+ int *T356;
+ /* Currently, the alias analyzer has limited support for handling
+ aliases of structure fields when no other variables are aliased.
+ Introduce additional aliases to confuse it. */
+ p = i ? &g : &f;
+ bar (p);
+ if (*p > 0.0)
+ str = 1;
+
+ T355 = locp->i;
+ T356 = &locp->i;
+ *T356 = str;
+ T355 = locp->i;
+
+ return T355;
+}
+
+main ()
+{
+ struct A loc;
+ int str;
+
+ loc.i = 2;
+ str = foo (&loc, 10, 3);
+ if (str!=1)
+ abort ();
+ return 0;
+}