1 files changed, 78 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/weak-3.c b/gcc/testsuite/gcc.dg/weak-3.c
new file mode 100644
index 00000000000..bd7d827ee97
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/weak-3.c
@@ -0,0 +1,78 @@
+/* { dg-do compile } */
+/* { dg-options "-fno-common" } */
+
+/* COFF does not support weak, and dg doesn't support UNSUPPORTED.  */
+/* { dg-do compile { xfail *-*-coff i?86-pc-cygwin h8300-*-hms } } */
+
+/* { dg-final { global target_triplet } } */
+/* { dg-final { if [string match h8300-*-hms $target_triplet ] {return} } } */
+/* { dg-final { if [string match i?86-pc-cygwin $target_triplet ] {return} } } */
+/* { dg-final { if [string match *-*-coff $target_triplet ] {return} } } */
+/* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]ffoo1a" } } */
+/* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]ffoo1b" } } */
+/* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]ffoo1c" } } */
+/* { dg-final { scan-assembler-not "weak\[^ \t\]*\[ \t\]ffoo1d" } } */
+/* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]ffoo1e" } } */
+/* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]ffoo1f" } } */
+/* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]ffoo1g" } } */
+
+/* test function addresses with __attribute__((weak)) */
+
+extern void * ffoo1a (void) __attribute__((weak));
+extern void * ffoo1a (void);
+void * foo1a (void)
+{
+  return (void *)ffoo1a;
+}
+
+
+extern void * ffoo1b (void);
+extern void * ffoo1b (void) __attribute__((weak));
+void * foo1b (void)
+{
+  return (void *)ffoo1b;
+}
+
+
+extern void * ffoo1c (void);  /* { dg-warning "weak declaration" "weak declaration" } */
+void * foo1c (void)
+{
+  return (void *)ffoo1c;
+}
+extern void * ffoo1c (void) __attribute__((weak));
+
+
+int ffoo1d (void);
+int ffoo1d (void) __attribute__((weak));
+
+
+extern void * ffoo1e (void);
+extern void * ffoo1e (void)  __attribute__((weak));
+void * foo1e (void)
+{
+  if (ffoo1e)
+    ffoo1e ();
+  return 0;
+}
+
+
+extern void * ffoo1f (void);    /* { dg-warning "weak declaration" "weak declaration" } */
+extern void * ffoox1f (void);
+void * foo1f (void)
+{
+  if (ffoo1f)
+    ffoo1f ();
+  return 0;
+}
+extern void * ffoo1f (void)  __attribute__((weak, alias ("ffoox1f")));
+
+
+extern void * ffoo1g (void);
+extern void * ffoox1g (void);
+extern void * ffoo1g (void)  __attribute__((weak, alias ("ffoox1g")));
+void * foo1g (void)
+{
+  if (ffoo1g)
+    ffoo1g ();
+  return 0;
+}