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Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/20031106-4.c')
-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/20031106-4.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20031106-4.c b/gcc/testsuite/gcc.dg/tree-ssa/20031106-4.c
new file mode 100644
index 00000000000..a288dacee47
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/20031106-4.c
@@ -0,0 +1,29 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+extern void link_error (void);
+
+/* Check for cprop on fields of the same struct. */
+
+struct s
+{
+ char d;
+ int a, b;
+ double m;
+};
+
+
+void foo (struct s* r)
+{
+ r->a = 0;
+ r->b = 1;
+ r->a++;
+ r->b++;
+ if (r->a != 1)
+ link_error ();
+ if (r->b != 2)
+ link_error ();
+}
+
+/* There should be no link_error calls. */
+/* { dg-final { scan-tree-dump-times "link_error" 0 "optimized" { xfail *-*-* } } } */