obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 32 insertions, 0 deletions

diff --git a/gcc/testsuite/c-c++-common/pr20000.c b/gcc/testsuite/c-c++-common/pr20000.c
new file mode 100644
index 000000000..3c0fb8841
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/pr20000.c
@@ -0,0 +1,32 @@
+/* PR c/20000 We only want to warn if the function returns
+   explicitly. We do not care about the return type.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+int g(void) __attribute__((noreturn)); 
+int g2(void) __attribute__((noreturn)); /* { dg-bogus ".noreturn. function returns non-void value" } */
+void h(void) __attribute__((noreturn));
+
+
+int g(void) {
+  return 1; /* { dg-warning "function declared 'noreturn' has a 'return' statement" } */
+}           /* { dg-warning "'noreturn' function does return" "" { target *-*-* } 12 } */
+
+int g2(void) {
+  h();
+}
+
+typedef int ft(void);
+volatile ft vg;
+volatile ft vg2;
+
+int vg(void); 
+int vg2(void); /* { dg-bogus ".noreturn. function returns non-void value" } */
+
+int vg(void) {
+  return 1; /* { dg-warning "function declared 'noreturn' has a 'return' statement" "" { target c } 27 } */
+}           /* { dg-warning "'noreturn' function does return" "" { target c } 27  } */
+
+int vg2(void) {
+  h();
+}