re PR tree-optimization/46066 (ICE: in create_parallel_loop, at…

re PR tree-optimization/46066 (ICE: in create_parallel_loop, at tree-parloops.c:1455 with -ftree-parallelize-loops -g)

	PR tree-optimization/46066
	* tree-parloops.c (create_parallel_loop): Use gsi_last_nondebug_bb
	instead of gsi_last_bb.

	* gcc.dg/autopar/pr46066.c: New test.

From-SVN: r165739

gcc/ChangeLog

+2010-10-20  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/46066
+	* tree-parloops.c (create_parallel_loop): Use gsi_last_nondebug_bb
+	instead of gsi_last_bb.
+
 2010-10-20  DJ Delorie  <dj@redhat.com>
 
 	* config/m32c/m32c.c (m32c_option_override): Always disable

gcc/testsuite/ChangeLog

+2010-10-20  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/46066
+	* gcc.dg/autopar/pr46066.c: New test.
+
 2010-10-20  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	PR c++/46024
 	* g++.dg/warn/miss-format-1.C: Enclose dg-error target list in braces.
 
-2010-10-20  Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
+2010-10-20  Rodrigo Rivas Costa  <rodrigorivascosta@gmail.com>
 
 	PR c++/46056
 	* g++.dg/cpp0x/range-for7.C: New.
@@ -1900,7 +1905,7 @@
 
 	* gfortran.dg/promotion.f90: Fix options.
 
-2010-09-11  Rodrigo Rivas <rodrigorivascosta@gmail.com>
+2010-09-11  Rodrigo Rivas  <rodrigorivascosta@gmail.com>
 
 	* g++.dg/cpp0x/range-for1.C: New.
 	* g++.dg/cpp0x/range-for2.C: New.
@@ -1915,7 +1920,7 @@
 	and counts. Check that transpose is not called.
 	* gfortran.dg/transpose_2.f90: Update error message.
 
-2010-09-10  Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
+2010-09-10  Rodrigo Rivas Costa  <rodrigorivascosta@gmail.com>
 
 	PR c++/43824
 	* g++.dg/lookup/strong-using-1.C: Set dg-options to "".

gcc/testsuite/gcc.dg/autopar/pr46066.c

+/* PR tree-optimization/46066 */
+/* { dg-do compile } */
+/* { dg-options "-fcompare-debug -O -ftree-parallelize-loops=4" } */
+
+void
+parloop (int N)
+{
+  int i, j, ii;
+  int x[400][10][400];
+  for (ii = 0; ii < N; ii++)
+    for (i = 0; i < N; i++)
+      for (j = 0; j < N; j++)
+	x[i][j][ii] = 3;
+  for (i = 0; i < N; i++)
+    for (j = 0; j < N; j++)
+      if (x[i][j][0] != 3)
+	__builtin_abort ();
+}

gcc/tree-parloops.c

@@ -1451,7 +1451,7 @@ create_parallel_loop (struct loop *loop, tree loop_fn, tree data,
 	   initvar);
   cvar_next = PHI_ARG_DEF_FROM_EDGE (phi, loop_latch_edge (loop));
 
-  gsi = gsi_last_bb (loop->latch);
+  gsi = gsi_last_nondebug_bb (loop->latch);
   gcc_assert (gsi_stmt (gsi) == SSA_NAME_DEF_STMT (cvar_next));
   gsi_remove (&gsi, true);