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, 56 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/20020412-1.c b/gcc/testsuite/gcc.c-torture/execute/20020412-1.c
new file mode 100644
index 000000000..df0efe008
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20020412-1.c
@@ -0,0 +1,56 @@
+/* PR c/3711
+   This testcase ICEd on IA-32 at -O0 and was miscompiled otherwise,
+   because std_expand_builtin_va_arg didn't handle variable size types.  */
+
+#include <stdarg.h>
+
+extern void abort (void);
+extern void exit (int);
+
+void bar (int c)
+{
+  static int d = '0';
+
+  if (c != d++)
+    abort ();
+  if (c < '0' || c > '9')
+    abort ();
+}
+
+void foo (int size, ...)
+{
+  struct
+  {
+    char x[size];
+  } d;
+  va_list ap;
+  int i;
+
+  va_start (ap, size);
+  d = va_arg (ap, typeof (d));
+  for (i = 0; i < size; i++)
+    bar (d.x[i]);
+  d = va_arg (ap, typeof (d));
+  for (i = 0; i < size; i++)
+    bar (d.x[i]);
+  va_end (ap);
+}
+
+int main (void)
+{
+  int z = 5;
+  struct { char a[z]; } x, y;
+          
+  x.a[0] = '0';
+  x.a[1] = '1';
+  x.a[2] = '2';
+  x.a[3] = '3';
+  x.a[4] = '4';
+  y.a[0] = '5';
+  y.a[1] = '6';
+  y.a[2] = '7';
+  y.a[3] = '8';
+  y.a[4] = '9';
+  foo (z, x, y);
+  exit (0);
+}