re PR tree-optimization/70152 (gcc ICE at -O3 and above on valid code on…

re PR tree-optimization/70152 (gcc ICE at -O3 and above on valid code on x86_64-linux-gnu in "replace_uses_by")

	PR tree-optimization/70152
	* tree-sra.c (replace_removed_params_ssa_names): Copy over
	SSA_NAME_OCCURS_IN_ABNORMAL_PHI from old_name to new_name.

	* gcc.dg/pr70152.c: New test.

From-SVN: r234092

gcc/ChangeLog

 2016-03-09  Jakub Jelinek  <jakub@redhat.com>
 
+	PR tree-optimization/70152
+	* tree-sra.c (replace_removed_params_ssa_names): Copy over
+	SSA_NAME_OCCURS_IN_ABNORMAL_PHI from old_name to new_name.
+
 	PR target/70086
 	* config/i386/i386.md (truncdfsf2 splitter): Use gen_vec_concatv2df
 	instead of gen_sse2_loadlpd.

gcc/testsuite/ChangeLog

 2016-03-09  Jakub Jelinek  <jakub@redhat.com>
 
+	PR tree-optimization/70152
+	* gcc.dg/pr70152.c: New test.
+
 	PR target/70086
 	* gcc.target/i386/pr70086-1.c: New test.
 	* gcc.target/i386/pr70086-2.c: New test.

gcc/testsuite/gcc.dg/pr70152.c

+/* PR tree-optimization/70152 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+int a;
+int foo (void);
+int setjmp (char *);
+char buf[64];
+
+static int
+bar (int x)
+{
+  x = 0;
+  setjmp (buf);
+  for (;;)
+    {
+    switch (x)
+      case 5:
+	x = foo ();
+    }
+}
+
+void
+baz (void)
+{
+  bar (a);
+}

gcc/tree-sra.c

@@ -4758,6 +4758,8 @@ replace_removed_params_ssa_names (tree old_name, gimple *stmt,
 
   repl = get_replaced_param_substitute (adj);
   new_name = make_ssa_name (repl, stmt);
+  SSA_NAME_OCCURS_IN_ABNORMAL_PHI (new_name)
+    = SSA_NAME_OCCURS_IN_ABNORMAL_PHI (old_name);
 
   if (dump_file)
     {