re PR ipa/59722 (Bootstrap comparison failure on i686-linux)

	PR ipa/59722
	* ipa-prop.c (ipa_analyze_params_uses): Ignore uses in debug stmts.

	* gcc.dg/pr59722.c: New test.

From-SVN: r206438

gcc/ChangeLog

+2014-01-08  Jakub Jelinek  <jakub@redhat.com>
+
+	PR ipa/59722
+	* ipa-prop.c (ipa_analyze_params_uses): Ignore uses in debug stmts.
+
 2014-01-08  Bernd Edlinger  <bernd.edlinger@hotmail.de>
 
 	PR middle-end/57748

gcc/ipa-prop.c

@@ -2127,8 +2127,11 @@ ipa_analyze_params_uses (struct cgraph_node *node,
 	      FOR_EACH_IMM_USE_FAST (use_p, imm_iter, ddef)
 		if (!is_gimple_call (USE_STMT (use_p)))
 		  {
-		    controlled_uses = IPA_UNDESCRIBED_USE;
-		    break;
+		    if (!is_gimple_debug (USE_STMT (use_p)))
+		      {
+			controlled_uses = IPA_UNDESCRIBED_USE;
+			break;
+		      }
 		  }
 		else
 		  controlled_uses++;

gcc/testsuite/ChangeLog

+2014-01-08  Jakub Jelinek  <jakub@redhat.com>
+
+	PR ipa/59722
+	* gcc.dg/pr59722.c: New test.
+
 2014-01-08  Bernd Edlinger  <bernd.edlinger@hotmail.de>
 
 	PR middle-end/57748

gcc/testsuite/gcc.dg/pr59722.c

+/* PR ipa/59722 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -fcompare-debug" } */
+
+extern void abrt (const char *, int) __attribute__((noreturn));
+void baz (int *, int *);
+
+static inline int
+bar (void)
+{
+  return 1;
+}
+
+static inline void
+foo (int *x, int y (void))
+{
+  while (1)
+    {
+      int a = 0;
+      if (*x)
+	{
+	  baz (x, &a);
+	  while (a && !y ())
+	    ;
+	  break;
+	}
+      abrt ("", 1);
+    }
+}
+
+void
+test (int x)
+{
+  foo (&x, bar);
+  foo (&x, bar);
+}