This commit was manufactured by cvs2svn to create branch

'gcc-3_1-branch'.

From-SVN: r50059

gcc/testsuite/g++.dg/debug/debug4.C

@@ -0,0 +1,17 @@
+/* PR debug/5770
+   This testcase failed at -O -g because the following constants
+   were optimized away since they were never referenced, but
+   since they are variables with initializers, rtl_for_decl_location
+   run expand_expr on their initializers and returned it.
+   This lead to references to constants which were deferred and thus
+   never emitted.  */
+/* { dg-do link } */
+
+static const char foo[] = "foo string";
+static const char bar[30] = "bar string";
+static const wchar_t baz[] = L"baz string";
+
+int
+main ()
+{
+}

gcc/testsuite/gcc.dg/debug/20020224-1.c

@@ -0,0 +1,60 @@
+/* { dg-do compile } */
+
+/* Here's the deal: f3 is not inlined because it's too big, but f2 and
+   f1 are inlined into it.  We used to fail to emit debugging info for
+   t1, because it was moved inside the (inlined) block of f1, marked
+   as abstract, then we'd crash.  */
+
+#define UNUSED __attribute__((unused))
+#define EXT __extension__
+
+int undef(void);
+
+inline static void
+f1 (int i UNUSED)
+{
+}
+
+inline static void
+f2 (void)
+{
+  f1 (EXT ({ int t1 UNUSED; undef (); }));
+}
+
+inline static void
+f3 (void)
+{
+  int v1 UNUSED;
+  int v2 UNUSED;
+
+  EXT ({ int t2 UNUSED; if (0) undef (); 0; })
+    && EXT ({ int t3 UNUSED; if (0) undef (); 0; });
+
+  if (1)
+    {
+      undef ();
+      if (1)
+        f2 ();
+    }
+
+  {
+    undef ();
+  }
+}
+
+inline static void
+f4 (void)
+{
+  EXT ({ undef (); 1; }) && EXT ({ int t4 UNUSED = ({ 1; }); 1; });
+
+  { }
+
+  EXT ({ int t5 UNUSED; if (0) undef (); 0; });
+
+  f4 ();
+
+  undef ();
+  f3 ();
+
+  return;
+}