Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 34 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/weak/weak-14.c b/gcc-4.9/gcc/testsuite/gcc.dg/weak/weak-14.c
new file mode 100644
index 000000000..33c7933f1
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/weak/weak-14.c
@@ -0,0 +1,34 @@
+// { dg-do run }
+// { dg-require-weak "" }
+// { dg-require-alias "" }
+// { dg-options "-O2 -fno-common" }
+
+// Copyright 2005 Free Software Foundation, Inc.
+// Contributed by Alexandre Oliva <aoliva@redhat.com>
+
+// PR middle-end/24295
+
+// The unit-at-a-time call graph code used to fail to emit variables
+// without external linkage that were only used indirectly, through
+// aliases.  We might then get linker failures because the static
+// variable was not defined, or run-time errors because the weak alias
+// ended up pointing somewhere random.
+
+#include <stdlib.h>
+
+static unsigned long lv1 = 0xdeadbeefUL;
+#pragma weak Av1a = lv1
+extern unsigned long Av1a;
+
+static unsigned long lf1(void) { return 0x510bea7UL; }
+#pragma weak Af1a = lf1
+extern unsigned long Af1a(void);
+
+int main (void) {
+  if (! &Av1a
+      || ! &Af1a
+      || Av1a != 0xdeadbeefUL
+      || Af1a() != 0x510bea7UL)
+    abort ();
+  exit (0);
+}