1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20031113-1.c b/gcc/testsuite/gcc.dg/tree-ssa/20031113-1.c
new file mode 100644
index 00000000000..a114379a7ad
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/20031113-1.c
@@ -0,0 +1,30 @@
+/* PR optimization/12640
+
+   We used to get into an infinite loop while trying to
+   figure out `strlen (resultString)'.  This showed up as
+   a stack overflow while compiling tk.  */
+
+/* { dg-do compile } */
+/* { dg-options "-O1" } */ 
+
+int i; 
+
+static void 
+SendEventProc (char *resultString) 
+{ 
+  char *p; 
+ 
+  resultString = ""; 
+  while (*p == '-') 
+    { 
+      if (p[2] == ' ') 
+	{ 
+	  resultString = p + 3; 
+	} 
+    } 
+  for (;;) 
+    { 
+      i = strlen (resultString) + 1; 
+    } 
+}
+