1 files changed, 51 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/unsorted/i386bug.c b/gcc/testsuite/gcc.c-torture/unsorted/i386bug.c
new file mode 100644
index 00000000000..395bfa6c3e2
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/unsorted/i386bug.c
@@ -0,0 +1,51 @@
+typedef union {
+    struct {
+	long RH, LH;
+    } v;
+    struct {
+	unsigned char B1;
+    } u;
+} twohalves;
+
+
+typedef union {
+    long cint;
+    twohalves hhfield;
+
+} memoryword;
+
+
+extern  memoryword mem[262];
+
+long znewstructure ( p )
+long p;
+{
+  long q, r;
+    {
+      q = mem [ p + 2 ] .hhfield .v.RH;
+      r = mem [ q + 1 ] .hhfield .v.LH;
+      do {
+	  q = r;
+	r = mem [ r ] .hhfield .v.RH;
+      } while ( ! ( r == p ) );
+      r = foo((long) ( 3 ));
+      mem [ q ] .hhfield .v.RH = r;
+      mem [ r + 2 ] = mem [ p + 2 ];
+      if ( mem [ p + 2 ] .hhfield .v.LH  == 0 )
+      {
+	q = mem [ p + 2 ] .hhfield .v.RH + 1;
+	while ( mem [ q ] .hhfield .v.RH != p ) q = mem [ q ] .hhfield .v.RH;
+	mem [ q ] .hhfield .v.RH = r;
+      }
+    }
+  mem [ r ] .hhfield .u.B1  = mem [ p ] .hhfield .u.B1;
+  mem [ r + 1 ] .hhfield .v.LH  = p;
+
+  q = foo((long) ( 3 ));
+
+  mem [ r + 1 ] .hhfield .v.RH = q;
+  mem [ q + 2 ] .hhfield .v.RH = r;
+
+
+  return(r);
+}