This commit was manufactured by cvs2svn to create branch

'gcc-3_2-branch'.

From-SVN: r57600

diff --git a/gcc/testsuite/gcc.c-torture/compile/20020927-1.c b/gcc/testsuite/gcc.c-torture/compile/20020927-1.c
new file mode 100644 (file)
index 0000000..b93d8a1
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/20020927-1.c
@@ -0,0 +1,26 @@
+/* PR optimization/7520 */
+/* ICE at -O3 on x86 due to register life problems caused by
+   the return-without-value in bar.  */
+
+int
+foo ()
+{
+  int i;
+  long long int j;
+
+  while (1)
+    {
+      if (j & 1)
+       ++i;
+      j >>= 1;
+      if (j)
+       return i;
+    }
+}
+
+int
+bar ()
+{
+  if (foo ())
+    return;
+}

diff --git a/gcc/testsuite/gcc.dg/cpp/20020927-1.c b/gcc/testsuite/gcc.dg/cpp/20020927-1.c
new file mode 100644 (file)
index 0000000..91f8951
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/cpp/20020927-1.c
@@ -0,0 +1,91 @@
+/* Test case for buffer overflow bug in token stringification.
+   See PR preprocessor/8055 for details.
+   Reported by Alexander N. Kabaev <ak03@gte.com>.
+   Test case written by Zack Weinberg <zack@codesourcery.com>.  */
+
+/* { dg-do preprocess } */
+
+#define S(x) #x
+
+/* Fill up one internal buffer with data.  */
+S(1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  1234567890123456789012345678901234567890123456789012345678901234567890
+  12345678901234567890123456789012345678901234567890123456789012345)
+
+/* When stringify_arg() was called with an empty macro argument, it would
+   advance the buffer pointer by one but fail to check for running past the
+   end of the buffer.  We can only know where the end of the buffer is to
+   within about eight bytes, so do this sixteen times to be sure of hitting
+   it.  */
+
+S()
+S()
+S()
+S()
+S()
+S()
+S()
+S()
+S()
+S()
+S()
+S()
+S()
+S()
+S()
+S()
+
+/* Now allocate more memory in the buffer, which should provoke a crash.  */
+
+S(abcdefghijklmnopqrstuvwxyz)
+S(abcdefghijklmnopqrstuvwxyz)