re PR middle-end/33382 (internal compiler error: in get_constraint_for_component_ref, at tree-ssa-structalias.c:2454)

2007-09-12  Richard Guenther  <rguenther@suse.de>

	PR middle-end/33382
	* gcc.c-torture/compile/pr33382.c: New testcase.
	* gcc.c-torture/execute/pr33382.c: Likewise.

From-SVN: r128419

gcc/testsuite/ChangeLog

@@ -1,3 +1,9 @@
+2007-09-12  Richard Guenther  <rguenther@suse.de>
+
+	PR middle-end/33382
+	* gcc.c-torture/compile/pr33382.c: New testcase.
+	* gcc.c-torture/execute/pr33382.c: Likewise.
+
 2007-09-12  Christopher D. Rickett  <crickett@lanl.gov>
 
 	PR fortran/33395

gcc/testsuite/gcc.c-torture/compile/pr33382.c

@@ -0,0 +1,95 @@
+typedef unsigned int size_t;
+typedef struct {
+    int disable;
+    char *searchconfig[];
+} config_t;
+typedef struct {
+    void *lng;
+} arglist_t;
+config_t config = {
+    .searchconfig = {
+		     ((void *) 0)}
+};
+
+arglist_t arglist[] = {
+    {
+     &config.searchconfig[0]}
+};
+const int arglistsize = ((int) (sizeof(arglist) / sizeof(arglist_t)));
+void show_configuration(char *arg)
+{
+    int i;
+
+    if (!__extension__( {
+		       size_t
+		       __s1_len,
+		       __s2_len; (__builtin_constant_p(arglist[i].lng)
+				  && (__s1_len = (!((size_t)
+						    (const void *)
+						    1)
+						  || __s2_len >= 4))
+				  ? : (__builtin_constant_p(arglist[i].lng)
+				       && ((size_t)
+					   (const void *)
+					   4)
+				       ? (__builtin_constant_p(arg)
+					  && ((size_t) (const void *) 1) ?
+					  : (__extension__( {
+							   __const * __s2 =
+							   (__const *)
+							   (arg);
+							   register
+							   __result =
+							   (((__const
+							      *) (arglist
+								  [i].
+								  lng))[0]
+							    - __s2[0]);
+							   if (__s1_len ==
+							       0) {
+							   if (__s1_len ==
+							       0) {
+							   __result =
+							   (((__const
+							      unsigned char
+							      *) (__const
+								  char
+								  *)
+							     (arglist[i].
+							      lng))[3] -
+							    __s2[3]);}
+							   }
+							   __result;}
+      ))):
+				       (__builtin_constant_p(arg)
+					?
+					(__builtin_constant_p
+					 (arglist[i].lng)
+					 ? : (__extension__( {
+							    char
+							    __result
+							    =
+							    ((__const
+							      unsigned *)
+							     (arg))[0];
+							    if
+							    (__s2_len
+							     > 0
+							     && __result ==
+							     0) {
+							    if (__s2_len >
+								1
+								&& __result
+								== 0) {
+							    }
+							    }
+							    __result;}
+      ))):
+
+
+
+					__builtin_strcmp(arglist[i].lng,
+							 arg))));}
+	))
+	return;
+}

gcc/testsuite/gcc.c-torture/execute/pr33382.c

@@ -0,0 +1,21 @@
+struct Foo {
+  int i;
+  int j[];
+};
+
+struct Foo x = { 1, { 2, 0, 2, 3 } };
+
+int foo(void)
+{
+  x.j[0] = 1;
+  return x.j[1];
+}
+
+extern void abort(void);
+
+int main()
+{
+  if (foo() != 0)
+    abort();
+  return 0;
+}