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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.c-torture/execute/pr15262-2.c
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Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/pr15262-2.c')
-rw-r--r--gcc/testsuite/gcc.c-torture/execute/pr15262-2.c37
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diff --git a/gcc/testsuite/gcc.c-torture/execute/pr15262-2.c b/gcc/testsuite/gcc.c-torture/execute/pr15262-2.c
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index 000000000..82e8aabd1
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr15262-2.c
@@ -0,0 +1,37 @@
+/* PR 15262. Similar to pr15262-1.c but with no obvious addresses
+ being taken in function foo(). Without IPA, by only looking inside
+ foo() we cannot tell for certain whether 'q' and 'b' alias each
+ other. */
+struct A
+{
+ int t;
+ int i;
+};
+
+struct B
+{
+ int *p;
+ float b;
+};
+
+float X;
+
+foo (struct B b, struct A *q, float *h)
+{
+ X += *h;
+ *(b.p) = 3;
+ q->t = 2;
+ return *(b.p);
+}
+
+main()
+{
+ struct A a;
+ struct B b;
+
+ b.p = &a.t;
+ if (foo (b, &a, &X) == 3)
+ abort ();
+
+ return 0;
+}