re PR tree-optimization/70960 (ICE: tree check: expected ssa_name, have…

re PR tree-optimization/70960 (ICE: tree check: expected ssa_name, have integer_cst in ifcvt_walk_pattern_tree, at tree-if-conv.c:2465)

2016-05-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/70960
	* tree-if-conv.c (ifcvt_walk_pattern_tree): Handle non-SSA ops.

	* gfortran.fortran-torture/compile/pr70960.f90: New testcase.

From-SVN: r235953

gcc/ChangeLog

+2016-05-06  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/70960
+	* tree-if-conv.c (ifcvt_walk_pattern_tree): Handle non-SSA ops.
+
 2016-05-06  Oleg Endo  <olegendo@gcc.gnu.org>
 
 	PR target/52933

gcc/testsuite/ChangeLog

+2016-05-06  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/70960
+	* gfortran.fortran-torture/compile/pr70960.f90: New testcase.
+
 2016-05-06  Oleg Endo  <olegendo@gcc.gnu.org>
 
 	PR target/52933

gcc/testsuite/gfortran.fortran-torture/compile/pr70960.f90

+  SUBROUTINE calbrec(a,ai,error)
+    REAL(KIND=8)                            :: a(3,3), ai(3,3)
+    DO i = 1, 3
+       il = 1
+       IF (i==1) il = 2
+       DO j = 1, 3
+          ai(j,i) = (-1.0_8)**(i+j)*det*(a(il,jl)*a(iu,ju)-a(il,ju)*a(iu,jl))
+       END DO
+    END DO
+  END SUBROUTINE calbrec

gcc/tree-if-conv.c

@@ -2462,6 +2462,9 @@ ifcvt_walk_pattern_tree (tree var, vec<gimple *> *defuse_list,
   enum tree_code code;
   gimple *def_stmt;
 
+  if (TREE_CODE (var) != SSA_NAME)
+    return;
+
   def_stmt = SSA_NAME_DEF_STMT (var);
   if (gimple_code (def_stmt) != GIMPLE_ASSIGN)
     return;