re PR tree-optimization/90385 (ICE: tree check: expected ssa_name, have real_cst…

re PR tree-optimization/90385 (ICE: tree check: expected ssa_name, have real_cst in transform_to_exit_first_loop_alt, at tree-parloops.c:1772)

	PR tree-optimization/90385
	* tree-parloops.c (try_create_reduction_list): Punt on non-SSA_NAME
	arguments of the exit phis.

	* gfortran.dg/pr90385.f90: New test.

From-SVN: r271059

gcc/ChangeLog

 2019-05-10  Jakub Jelinek  <jakub@redhat.com>
 
+	PR tree-optimization/90385
+	* tree-parloops.c (try_create_reduction_list): Punt on non-SSA_NAME
+	arguments of the exit phis.
+
 	PR c++/90383
 	* tree-inline.h (struct copy_body_data): Add do_not_fold member.
 	* tree-inline.c (remap_gimple_op_r): Avoid folding expressions if

gcc/testsuite/ChangeLog

 2019-05-10  Jakub Jelinek  <jakub@redhat.com>
 
+	PR tree-optimization/90385
+	* gfortran.dg/pr90385.f90: New test.
+
 	PR c++/90383
 	* g++.dg/cpp1y/constexpr-90383-1.C: New test.
 	* g++.dg/cpp1y/constexpr-90383-2.C: New test.

gcc/testsuite/gfortran.dg/pr90385.f90

+! PR tree-optimization/90385
+! { dg-do compile }
+! { dg-require-effective-target pthread }
+! { dg-options "-O1 -ftree-parallelize-loops=2 -fno-tree-ccp -fno-tree-ch -fno-tree-copy-prop -fno-tree-forwprop -fno-tree-sink --param parloops-min-per-thread=5" }
+
+include 'array_constructor_47.f90'

gcc/tree-parloops.c

@@ -2794,8 +2794,16 @@ try_create_reduction_list (loop_p loop,
       gimple *reduc_phi;
       tree val = PHI_ARG_DEF_FROM_EDGE (phi, exit);
 
-      if (TREE_CODE (val) == SSA_NAME && !virtual_operand_p (val))
+      if (!virtual_operand_p (val))
 	{
+	  if (TREE_CODE (val) != SSA_NAME)
+	    {
+	      if (dump_file && (dump_flags & TDF_DETAILS))
+		fprintf (dump_file,
+			 "  FAILED: exit PHI argument invariant.\n");
+	      return false;
+	    }
+
 	  if (dump_file && (dump_flags & TDF_DETAILS))
 	    {
 	      fprintf (dump_file, "phi is ");