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, 34 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/torture/pr42878-2.c b/gcc/testsuite/gcc.dg/torture/pr42878-2.c
new file mode 100644
index 000000000..67e413a2c
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr42878-2.c
@@ -0,0 +1,34 @@
+/* { dg-do compile } */
+/* { dg-options "-fcompare-debug" } */
+
+extern void error(void) __attribute__((noreturn));
+
+struct S {
+  struct S *s;
+};
+
+static inline unsigned char f2()
+{
+  error();
+}
+
+static inline void f1()
+{
+  int builtin_optab;
+  if (!f2() && builtin_optab)
+    error();
+}
+
+extern void f4(struct S *s);
+
+static inline void f3(struct S *s)
+{
+  f4(s->s->s);
+}
+
+void expand_builtin(struct S *s, int cond)
+{
+  if (cond)
+    f1();
+  f3(s);
+}