re PR target/65183 (ICE: verify_ssa failed: virtual use of statement not…

re PR target/65183 (ICE: verify_ssa failed: virtual use of statement not up-to-date with -fcheck-pointer-bounds -fchkp-use-nochk-string-functions -mmpx)

gcc/

	PR target/65183
	* tree-chkp.c (chkp_check_lower): Don't check against
	zero bounds for already instrumented functions.
	(chkp_check_upper): Likewise.
	(chkp_fini): Clean pass local data to avoid wrong reusage.

gcc/testsuite/

	PR target/65183
	* gcc.target/i386/pr65183.c: New.

From-SVN: r221105

gcc/ChangeLog

+2015-03-02  Ilya Enkovich  <ilya.enkovich@intel.com>
+
+	PR target/65183
+	* tree-chkp.c (chkp_check_lower): Don't check against
+	zero bounds for already instrumented functions.
+	(chkp_check_upper): Likewise.
+	(chkp_fini): Clean pass local data to avoid wrong reusage.
+
 2015-02-28  Martin Liska  <mliska@suse.cz>
 	    Jan Hubicka   <hubicka@ucw.cz>
 

gcc/testsuite/ChangeLog

+2015-03-02  Ilya Enkovich  <ilya.enkovich@intel.com>
+
+	PR target/65183
+	* gcc.target/i386/pr65183.c: New.
+
 2015-02-28  Martin Liska  <mliska@suse.cz>
 	    Jan Hubicka   <hubicka@ucw.cz>
 

gcc/testsuite/gcc.target/i386/pr65183.c

+/* { dg-do compile } */
+/* { dg-require-effective-target mpx } */
+/* { dg-options "-O -fcheck-pointer-bounds -fchkp-use-nochk-string-functions -mmpx" } */
+
+extern void bar(void *);
+extern void baz(void);
+
+static int lc[32];
+
+void foobar(void *c)
+{
+  bar(&c);
+  __builtin_memcpy (lc, c, lc[0]);
+}
+
+void foo ()
+{
+  baz ();
+  foobar(0);
+}

gcc/tree-chkp.c

@@ -1268,7 +1268,8 @@ chkp_check_lower (tree addr, tree bounds,
   gimple check;
   tree node;
 
-  if (bounds == chkp_get_zero_bounds ())
+  if (!chkp_function_instrumented_p (current_function_decl)
+      && bounds == chkp_get_zero_bounds ())
     return;
 
   if (dirflag == integer_zero_node
@@ -1314,7 +1315,8 @@ chkp_check_upper (tree addr, tree bounds,
   gimple check;
   tree node;
 
-  if (bounds == chkp_get_zero_bounds ())
+  if (!chkp_function_instrumented_p (current_function_decl)
+      && bounds == chkp_get_zero_bounds ())
     return;
 
   if (dirflag == integer_zero_node
@@ -4306,6 +4308,10 @@ chkp_fini (void)
   free_dominance_info (CDI_POST_DOMINATORS);
 
   bitmap_obstack_release (NULL);
+
+  entry_block = NULL;
+  zero_bounds = NULL_TREE;
+  none_bounds = NULL_TREE;
 }
 
 /* Main instrumentation pass function.  */