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, 36 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/20101013-1.c b/gcc/testsuite/gcc.c-torture/execute/20101013-1.c
new file mode 100644
index 000000000..7d477aff0
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20101013-1.c
@@ -0,0 +1,36 @@
+/* PR rtl-optimization/45912 */
+
+extern void abort (void);
+
+static void* __attribute__((noinline,noclone))
+get_addr_base_and_unit_offset (void *base, long long *i)
+{
+  *i = 0;
+  return base;
+}
+
+static void* __attribute__((noinline,noclone))
+build_int_cst (void *base, long long offset)
+{
+  if (offset != 4)
+    abort ();
+
+  return base;
+}
+
+static void* __attribute__((noinline,noclone))
+build_ref_for_offset (void *base, long long offset)
+{
+  long long base_offset;
+  base = get_addr_base_and_unit_offset (base, &base_offset);
+  return build_int_cst (base, base_offset + offset / 8);
+}
+
+int
+main (void)
+{
+  void *ret = build_ref_for_offset ((void *)0, 32);
+  if (ret != (void *)0)
+    abort ();
+  return 0;
+}