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, 55 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/guality/vla-2.c b/gcc/testsuite/gcc.dg/guality/vla-2.c
new file mode 100644
index 000000000..6773775b9
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/guality/vla-2.c
@@ -0,0 +1,55 @@
+/* PR debug/42801 */
+/* { dg-do run } */
+/* { dg-options "-g" } */
+
+void __attribute__((noinline))
+fn1 (int *x, int y)
+{
+  asm volatile ("" : : "rm" (x), "rm" (y) : "memory");
+}
+
+static inline __attribute__((always_inline)) int
+fn2 (int i)
+{
+  int a[i];
+  fn1 (a, i);
+  fn1 (a, i);		/* { dg-final { gdb-test 16 "sizeof (a)" "5 * sizeof (int)" } } */
+  return i;
+}
+
+static inline __attribute__((always_inline)) int
+fn3 (int i)
+{
+  int a[i];
+  fn1 (a, i);
+  fn1 (a, i);		/* { dg-final { gdb-test 25 "sizeof (a)" "6 * sizeof (int)" } } */
+  return i;
+}
+
+static inline __attribute__((always_inline)) int
+fn4 (int i)
+{
+  return fn3 (i);
+}
+
+int __attribute__((noinline))
+fn5 (void)
+{
+  return fn2 (5) + 1;
+}
+
+int __attribute__((noinline))
+fn6 (int i)
+{
+  return fn2 (i + 1) + fn4 (i + 2) + fn4 (i + 2) + 1;
+}
+
+int
+main (void)
+{
+  int x = 4;
+  asm volatile ("" : "+r" (x));
+  fn5 ();
+  fn6 (x);
+  return 0;
+}