re PR tree-optimization/42231 (Wrong generated code when using a callback…

re PR tree-optimization/42231 (Wrong generated code when using a callback function (possible callback function inlining bug ?))

2009-12-27  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/42231
	* testsuite/gcc.c-torture/execute/pr42231.c: New test.

From-SVN: r155485

gcc/testsuite/ChangeLog

+2009-12-27  Martin Jambor  <mjambor@suse.cz>
+
+	PR tree-optimization/42231
+	* gcc.c-torture/execute/pr42231.c: New test.
+	
 2009-12-27  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
 	    Daniel Kraft  <d@domob.eu>
 

gcc/testsuite/gcc.c-torture/execute/pr42231.c

+extern void abort (void);
+
+static max;
+
+static void __attribute__((noinline)) storemax (int i)
+{
+  if (i > max)
+    max = i;
+}
+
+static int CallFunctionRec(int (*fun)(int depth), int depth) {
+  if (!fun(depth)) {
+    return 0;
+  }
+  if (depth < 10) {
+    CallFunctionRec(fun, depth + 1);
+  }
+  return 1;
+}
+
+static int CallFunction(int (*fun)(int depth)) {
+  return CallFunctionRec(fun, 1) && !fun(0);
+}
+
+static int callback(int depth) {
+  storemax (depth);
+  return depth != 0;
+}
+
+int main() {
+  CallFunction(callback);
+  if (max != 10)
+    abort ();
+  return 0;
+}