re PR middle-end/15345 ([non-unit-at-a-time] unreferenced nested inline…

re PR middle-end/15345 ([non-unit-at-a-time] unreferenced nested inline functions not optimized away)

	PR middle-end/15345
	PR c/16450
	* gcc.dg/torture/nested-fn-1.c: New test.

From-SVN: r84999

gcc/testsuite/ChangeLog

+2004-07-21  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/15345
+	PR c/16450
+	* gcc.dg/torture/nested-fn-1.c: New test.
+
 2004-07-20  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR target/16559

gcc/testsuite/gcc.dg/torture/nested-fn-1.c

+/* PR middle-end/15345, c/16450 */
+/* Test whether unused nested functions aren't emitted into the assembly.  */
+/* { dg-do compile } */
+/* { dg-options "-g0" } */
+
+int
+fn1 (int x)
+{
+  int i = x;
+  inline __attribute__((always_inline)) int
+  should_not_appear1 (void)
+  {
+    return i;
+  }
+  return should_not_appear1 ();
+}
+
+int
+fn2 (int x)
+{
+  int i = x;
+  inline __attribute__((always_inline)) int
+  should_not_appear2 (void)
+  {
+    return i;
+  }
+  return x;
+}
+
+extern void check (void *p);
+
+int
+fn3 (int x)
+{
+  int i = x;
+  inline int
+  should_appear1 (void)
+  {
+    char *p = __builtin_alloca (i);
+    check (p);
+    return i;
+  }
+  return should_appear1 ();
+}
+
+int
+fn4 (int x)
+{
+  int i = x;
+  inline int
+  should_not_appear3 (void)
+  {
+    char *p = __builtin_alloca (i);
+    check (p);
+    return i;
+  }
+  return 0 ? should_not_appear3 () : 1;
+}
+
+int
+fn5 (int x)
+{
+  int i = x;
+  inline int
+  should_appear2 (void)
+  {
+    return i;
+  }
+  check (should_appear2);
+  return i;
+}
+
+/* { dg-final { scan-assembler-not "should_not_appear" } } */