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, 208 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/memset-3.c b/gcc/testsuite/gcc.c-torture/execute/memset-3.c
new file mode 100644
index 000000000..64032a775
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/memset-3.c
@@ -0,0 +1,208 @@
+/* Copyright (C) 2002  Free Software Foundation.
+
+   Test memset with various combinations of constant pointer alignments and
+   lengths to make sure any optimizations in the compiler are correct.
+
+   Written by Roger Sayle, July 22, 2002.  */
+
+#ifndef MAX_OFFSET
+#define MAX_OFFSET (sizeof (long long))
+#endif
+
+#ifndef MAX_COPY
+#define MAX_COPY 15
+#endif
+
+#ifndef MAX_EXTRA
+#define MAX_EXTRA (sizeof (long long))
+#endif
+
+#define MAX_LENGTH (MAX_OFFSET + MAX_COPY + MAX_EXTRA)
+
+static union {
+  char buf[MAX_LENGTH];
+  long long align_int;
+  long double align_fp;
+} u;
+
+char A = 'A';
+
+void reset ()
+{
+  int i;
+
+  for (i = 0; i < MAX_LENGTH; i++)
+    u.buf[i] = 'a';
+}
+
+void check (int off, int len, int ch)
+{
+  char *q;
+  int i;
+
+  q = u.buf;
+  for (i = 0; i < off; i++, q++)
+    if (*q != 'a')
+      abort ();
+
+  for (i = 0; i < len; i++, q++)
+    if (*q != ch)
+      abort ();
+
+  for (i = 0; i < MAX_EXTRA; i++, q++)
+    if (*q != 'a')
+      abort ();
+}
+
+int main ()
+{
+  int len;
+  char *p;
+
+  /* off == 0 */
+  for (len = 0; len < MAX_COPY; len++)
+    {
+      reset ();
+
+      p = memset (u.buf, '\0', len);
+      if (p != u.buf) abort ();
+      check (0, len, '\0');
+
+      p = memset (u.buf, A, len);
+      if (p != u.buf) abort ();
+      check (0, len, 'A');
+
+      p = memset (u.buf, 'B', len);
+      if (p != u.buf) abort ();
+      check (0, len, 'B');
+    }
+
+  /* off == 1 */
+  for (len = 0; len < MAX_COPY; len++)
+    {
+      reset ();
+
+      p = memset (u.buf+1, '\0', len);
+      if (p != u.buf+1) abort ();
+      check (1, len, '\0');
+
+      p = memset (u.buf+1, A, len);
+      if (p != u.buf+1) abort ();
+      check (1, len, 'A');
+
+      p = memset (u.buf+1, 'B', len);
+      if (p != u.buf+1) abort ();
+      check (1, len, 'B');
+    }
+
+  /* off == 2 */
+  for (len = 0; len < MAX_COPY; len++)
+    {
+      reset ();
+
+      p = memset (u.buf+2, '\0', len);
+      if (p != u.buf+2) abort ();
+      check (2, len, '\0');
+
+      p = memset (u.buf+2, A, len);
+      if (p != u.buf+2) abort ();
+      check (2, len, 'A');
+
+      p = memset (u.buf+2, 'B', len);
+      if (p != u.buf+2) abort ();
+      check (2, len, 'B');
+    }
+
+  /* off == 3 */
+  for (len = 0; len < MAX_COPY; len++)
+    {
+      reset ();
+
+      p = memset (u.buf+3, '\0', len);
+      if (p != u.buf+3) abort ();
+      check (3, len, '\0');
+
+      p = memset (u.buf+3, A, len);
+      if (p != u.buf+3) abort ();
+      check (3, len, 'A');
+
+      p = memset (u.buf+3, 'B', len);
+      if (p != u.buf+3) abort ();
+      check (3, len, 'B');
+    }
+
+  /* off == 4 */
+  for (len = 0; len < MAX_COPY; len++)
+    {
+      reset ();
+
+      p = memset (u.buf+4, '\0', len);
+      if (p != u.buf+4) abort ();
+      check (4, len, '\0');
+
+      p = memset (u.buf+4, A, len);
+      if (p != u.buf+4) abort ();
+      check (4, len, 'A');
+
+      p = memset (u.buf+4, 'B', len);
+      if (p != u.buf+4) abort ();
+      check (4, len, 'B');
+    }
+
+  /* off == 5 */
+  for (len = 0; len < MAX_COPY; len++)
+    {
+      reset ();
+
+      p = memset (u.buf+5, '\0', len);
+      if (p != u.buf+5) abort ();
+      check (5, len, '\0');
+
+      p = memset (u.buf+5, A, len);
+      if (p != u.buf+5) abort ();
+      check (5, len, 'A');
+
+      p = memset (u.buf+5, 'B', len);
+      if (p != u.buf+5) abort ();
+      check (5, len, 'B');
+    }
+
+  /* off == 6 */
+  for (len = 0; len < MAX_COPY; len++)
+    {
+      reset ();
+
+      p = memset (u.buf+6, '\0', len);
+      if (p != u.buf+6) abort ();
+      check (6, len, '\0');
+
+      p = memset (u.buf+6, A, len);
+      if (p != u.buf+6) abort ();
+      check (6, len, 'A');
+
+      p = memset (u.buf+6, 'B', len);
+      if (p != u.buf+6) abort ();
+      check (6, len, 'B');
+    }
+
+  /* off == 7 */
+  for (len = 0; len < MAX_COPY; len++)
+    {
+      reset ();
+
+      p = memset (u.buf+7, '\0', len);
+      if (p != u.buf+7) abort ();
+      check (7, len, '\0');
+
+      p = memset (u.buf+7, A, len);
+      if (p != u.buf+7) abort ();
+      check (7, len, 'A');
+
+      p = memset (u.buf+7, 'B', len);
+      if (p != u.buf+7) abort ();
+      check (7, len, 'B');
+    }
+
+  exit (0);
+}
+