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-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/20031216-1.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20031216-1.c b/gcc/testsuite/gcc.dg/tree-ssa/20031216-1.c
new file mode 100644
index 000000000..0e97833fe
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/20031216-1.c
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+extern void link_error (void);
+
+void
+foo (int b)
+{
+ int a;
+ a = b + 2;
+ a--;
+ a--;
+ if (a != b)
+ link_error ();
+}
+
+/* The comparison should be eliminated, there should be no reference
+ to link_error. */
+/* { dg-final { scan-tree-dump-times "link_error" 0 "optimized"} } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */