re PR tree-optimization/57478 (ice in vec.h:815)

2013-05-31  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/57478
	PR tree-optimization/57453
	* tree-vect-slp.c (vect_bb_slp_scalar_cost): Uses in PHI nodes
	are life as well.

From-SVN: r199476

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 42ed62640e7395f721ed53cab901a2c074f2560c..c3f08d8aa194d93706cf2b55a62ff2edbfd93584 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2013-05-31  Richard Biener  <rguenther@suse.de>
+
+       PR tree-optimization/57478
+       PR tree-optimization/57453
+       * tree-vect-slp.c (vect_bb_slp_scalar_cost): Uses in PHI nodes
+       are life as well.
+
 2013-05-31  Kaushik Phatak  <kaushik.phatak@kpitcummins.com>
 
        * config/rl78/rl78.md (mulqi3,mulhi3): New define_expands.

diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c
index 3dde0636e0f1541e0e7b413e63db49d13f500229..2877dd8ae49bcb27958836cebb6519cca73068a1 100644 (file)
--- a/gcc/tree-vect-slp.c
+++ b/gcc/tree-vect-slp.c
@@ -1932,7 +1932,8 @@ vect_bb_slp_scalar_cost (basic_block bb,
          imm_use_iterator use_iter;
          gimple use_stmt;
          FOR_EACH_IMM_USE_STMT (use_stmt, use_iter, DEF_FROM_PTR (def_p))
-           if (gimple_bb (use_stmt) != bb
+           if (gimple_code (use_stmt) == GIMPLE_PHI
+               || gimple_bb (use_stmt) != bb
                || !STMT_VINFO_VECTORIZABLE (vinfo_for_stmt (use_stmt)))
              {
                life[i] = true;