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, 103 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/i386/pr44071.c b/gcc/testsuite/gcc.target/i386/pr44071.c
new file mode 100644
index 000000000..514c5e2fd
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr44071.c
@@ -0,0 +1,103 @@
+/* PR middle-end/44071 */
+/* { dg-do run } */
+/* { dg-options "-O2" } */
+
+static inline int
+f1 (void)
+{
+  asm goto ("jmp %l[l1]" : : : : l1, l2);
+  __builtin_unreachable ();
+ l1:
+  return 1;
+ l2:
+  return 0;
+}
+
+__attribute__((noinline)) int
+b1 (int x)
+{
+  if (f1 () || x == 6)
+    x = 1;
+  else
+    x = 2;
+  return x;
+}
+
+static inline int
+f2 (void)
+{
+  asm goto ("jmp %l[l2]" : : : : l1, l2);
+  __builtin_unreachable ();
+ l1:
+  return 1;
+ l2:
+  return 0;
+}
+
+__attribute__((noinline)) int
+b2 (int x)
+{
+  if (f2 () || x == 6)
+    x = 1;
+  else
+    x = 2;
+  return x;
+}
+
+static inline int
+f3 (void)
+{
+  asm goto ("jmp %l[l1]" : : : : l1, l2);
+ l1:
+  return 1;
+ l2:
+  return 0;
+}
+
+__attribute__((noinline)) int
+b3 (int x)
+{
+  if (f3 () || x == 6)
+    x = 1;
+  else
+    x = 2;
+  return x;
+}
+
+static inline int
+f4 (void)
+{
+  asm goto ("jmp %l[l2]" : : : : l1, l2);
+ l1:
+  return 1;
+ l2:
+  return 0;
+}
+
+__attribute__((noinline)) int
+b4 (int x)
+{
+  if (f4 () || x == 6)
+    x = 1;
+  else
+    x = 2;
+  return x;
+}
+
+extern void abort (void);
+
+int
+main (void)
+{
+  int x;
+  asm ("" : "=r" (x) : "0" (0));
+  if (b1 (x) != 1 || b1 (x + 6) != 1)
+    abort ();
+  if (b2 (x) != 2 || b2 (x + 6) != 1)
+    abort ();
+  if (b3 (x) != 1 || b3 (x + 6) != 1)
+    abort ();
+  if (b4 (x) != 2 || b4 (x + 6) != 1)
+    abort ();
+  return 0;
+}