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2012-02-10 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
authorwschmidt <wschmidt@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 10 Feb 2012 16:38:37 +0000 (16:38 +0000)
committerwschmidt <wschmidt@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 10 Feb 2012 16:38:37 +0000 (16:38 +0000)
    Ira Rosen  <irar@il.ibm.com>

PR tree-optimization/50031
* targhooks.c (default_builtin_vectorization_cost): Handle
vec_promote_demote.
* target.h (enum vect_cost_for_stmt): Add vec_promote_demote.
* tree-vect-loop.c (vect_get_single_scalar_iteraion_cost): Handle
all types of reduction and pattern statements.
(vect_estimate_min_profitable_iters): Likewise.
* tree-vect-stmts.c (vect_model_promotion_demotion_cost): New function.
(vect_get_load_cost): Use vec_perm for permutations; add dump logic
for explicit realigns.
(vectorizable_conversion): Call vect_model_promotion_demotion_cost.
* config/spu/spu.c (spu_builtin_vectorization_cost): Handle
vec_promote_demote.
* config/i386/i386.c (ix86_builtin_vectorization_cost): Likewise.
* config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Update
vec_perm for VSX and handle vec_promote_demote.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@184102 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/ChangeLog
gcc/config/i386/i386.c
gcc/config/rs6000/rs6000.c
gcc/config/spu/spu.c
gcc/target.h
gcc/targhooks.c
gcc/tree-vect-loop.c
gcc/tree-vect-stmts.c

index cd51a9f..02a7f16 100644 (file)
@@ -1,3 +1,23 @@
+2012-02-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+           Ira Rosen  <irar@il.ibm.com>
+
+       PR tree-optimization/50031
+       * targhooks.c (default_builtin_vectorization_cost): Handle
+       vec_promote_demote.
+       * target.h (enum vect_cost_for_stmt): Add vec_promote_demote.
+       * tree-vect-loop.c (vect_get_single_scalar_iteraion_cost): Handle
+       all types of reduction and pattern statements.
+       (vect_estimate_min_profitable_iters): Likewise.
+       * tree-vect-stmts.c (vect_model_promotion_demotion_cost): New function.
+       (vect_get_load_cost): Use vec_perm for permutations; add dump logic
+       for explicit realigns.
+       (vectorizable_conversion): Call vect_model_promotion_demotion_cost.
+       * config/spu/spu.c (spu_builtin_vectorization_cost): Handle
+       vec_promote_demote.
+       * config/i386/i386.c (ix86_builtin_vectorization_cost): Likewise.
+       * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Update
+       vec_perm for VSX and handle vec_promote_demote.
+
 2012-02-10  Jakub Jelinek  <jakub@redhat.com>
 
        PR middle-end/52177
index 009dd53..b901ee6 100644 (file)
@@ -35336,6 +35336,7 @@ ix86_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
         return ix86_cost->cond_not_taken_branch_cost;
 
       case vec_perm:
+      case vec_promote_demote:
         return ix86_cost->vec_stmt_cost;
 
       default:
index 90be03e..97a3b81 100644 (file)
@@ -3543,9 +3543,16 @@ rs6000_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
         return 1;
 
       case vec_perm:
-       if (!TARGET_VSX)
+       if (TARGET_VSX)
+         return 4;
+       else
          return 1;
-       return 2;
+
+      case vec_promote_demote:
+        if (TARGET_VSX)
+          return 5;
+        else
+          return 1;
 
       case cond_branch_taken:
         return 3;
index 0bab5cf..c65d003 100644 (file)
@@ -6920,6 +6920,7 @@ spu_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
       case scalar_to_vec:
       case cond_branch_not_taken:
       case vec_perm:
+      case vec_promote_demote:
         return 1;
 
       case scalar_store:
index 3818198..e3307e8 100644 (file)
@@ -145,7 +145,8 @@ enum vect_cost_for_stmt
   scalar_to_vec,
   cond_branch_not_taken,
   cond_branch_taken,
-  vec_perm
+  vec_perm,
+  vec_promote_demote
 };
 
 /* The target structure.  This holds all the backend hooks.  */
index 2b4fd27..8e3d74e 100644 (file)
@@ -514,6 +514,7 @@ default_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
       case scalar_to_vec:
       case cond_branch_not_taken:
       case vec_perm:
+      case vec_promote_demote:
         return 1;
 
       case unaligned_load:
index 051d340..7f42a7d 100644 (file)
@@ -2417,7 +2417,8 @@ vect_get_single_scalar_iteraion_cost (loop_vec_info loop_vinfo)
           if (stmt_info
               && !STMT_VINFO_RELEVANT_P (stmt_info)
               && (!STMT_VINFO_LIVE_P (stmt_info)
-                  || STMT_VINFO_DEF_TYPE (stmt_info) != vect_reduction_def))
+                  || !VECTORIZABLE_CYCLE_DEF (STMT_VINFO_DEF_TYPE (stmt_info)))
+             && !STMT_VINFO_IN_PATTERN_P (stmt_info))
             continue;
 
           if (STMT_VINFO_DATA_REF (vinfo_for_stmt (stmt)))
@@ -2564,15 +2565,46 @@ vect_estimate_min_profitable_iters (loop_vec_info loop_vinfo)
        {
          gimple stmt = gsi_stmt (si);
          stmt_vec_info stmt_info = vinfo_for_stmt (stmt);
+
+         if (STMT_VINFO_IN_PATTERN_P (stmt_info))
+           {
+             stmt = STMT_VINFO_RELATED_STMT (stmt_info);
+             stmt_info = vinfo_for_stmt (stmt);
+           }
+
          /* Skip stmts that are not vectorized inside the loop.  */
          if (!STMT_VINFO_RELEVANT_P (stmt_info)
              && (!STMT_VINFO_LIVE_P (stmt_info)
-                 || STMT_VINFO_DEF_TYPE (stmt_info) != vect_reduction_def))
+                 || !VECTORIZABLE_CYCLE_DEF (STMT_VINFO_DEF_TYPE (stmt_info))))
            continue;
+
          vec_inside_cost += STMT_VINFO_INSIDE_OF_LOOP_COST (stmt_info) * factor;
          /* FIXME: for stmts in the inner-loop in outer-loop vectorization,
             some of the "outside" costs are generated inside the outer-loop.  */
          vec_outside_cost += STMT_VINFO_OUTSIDE_OF_LOOP_COST (stmt_info);
+          if (is_pattern_stmt_p (stmt_info)
+             && STMT_VINFO_PATTERN_DEF_SEQ (stmt_info))
+            {
+             gimple_stmt_iterator gsi;
+             
+             for (gsi = gsi_start (STMT_VINFO_PATTERN_DEF_SEQ (stmt_info));
+                  !gsi_end_p (gsi); gsi_next (&gsi))
+                {
+                  gimple pattern_def_stmt = gsi_stmt (gsi);
+                  stmt_vec_info pattern_def_stmt_info
+                   = vinfo_for_stmt (pattern_def_stmt);
+                  if (STMT_VINFO_RELEVANT_P (pattern_def_stmt_info)
+                      || STMT_VINFO_LIVE_P (pattern_def_stmt_info))
+                   {
+                      vec_inside_cost
+                       += STMT_VINFO_INSIDE_OF_LOOP_COST
+                          (pattern_def_stmt_info) * factor;
+                      vec_outside_cost
+                       += STMT_VINFO_OUTSIDE_OF_LOOP_COST
+                          (pattern_def_stmt_info);
+                    }
+               }
+           }
        }
     }
 
index e854da5..20f10f3 100644 (file)
@@ -811,6 +811,46 @@ vect_model_simple_cost (stmt_vec_info stmt_info, int ncopies,
 }
 
 
+/* Model cost for type demotion and promotion operations.  PWR is normally
+   zero for single-step promotions and demotions.  It will be one if 
+   two-step promotion/demotion is required, and so on.  Each additional
+   step doubles the number of instructions required.  */
+
+static void
+vect_model_promotion_demotion_cost (stmt_vec_info stmt_info,
+                                   enum vect_def_type *dt, int pwr)
+{
+  int i, tmp;
+  int inside_cost = 0, outside_cost = 0, single_stmt_cost;
+
+  /* The SLP costs were already calculated during SLP tree build.  */
+  if (PURE_SLP_STMT (stmt_info))
+    return;
+
+  single_stmt_cost = vect_get_stmt_cost (vec_promote_demote);
+  for (i = 0; i < pwr + 1; i++)
+    {
+      tmp = (STMT_VINFO_TYPE (stmt_info) == type_promotion_vec_info_type) ?
+       (i + 1) : i;
+      inside_cost += vect_pow2 (tmp) * single_stmt_cost;
+    }
+
+  /* FORNOW: Assuming maximum 2 args per stmts.  */
+  for (i = 0; i < 2; i++)
+    {
+      if (dt[i] == vect_constant_def || dt[i] == vect_external_def)
+        outside_cost += vect_get_stmt_cost (vector_stmt);
+    }
+
+  if (vect_print_dump_info (REPORT_COST))
+    fprintf (vect_dump, "vect_model_promotion_demotion_cost: inside_cost = %d, "
+             "outside_cost = %d .", inside_cost, outside_cost);
+
+  /* Set the costs in STMT_INFO.  */
+  stmt_vinfo_set_inside_of_loop_cost (stmt_info, NULL, inside_cost);
+  stmt_vinfo_set_outside_of_loop_cost (stmt_info, NULL, outside_cost);
+}
+
 /* Function vect_cost_strided_group_size
 
    For strided load or store, return the group_size only if it is the first
@@ -887,7 +927,6 @@ vect_model_store_cost (stmt_vec_info stmt_info, int ncopies,
       if (vect_print_dump_info (REPORT_COST))
         fprintf (vect_dump, "vect_model_store_cost: strided group_size = %d .",
                  group_size);
-
     }
 
   /* Costs of the stores.  */
@@ -1049,7 +1088,7 @@ vect_get_load_cost (struct data_reference *dr, int ncopies,
     case dr_explicit_realign:
       {
         *inside_cost += ncopies * (2 * vect_get_stmt_cost (vector_load)
-           + vect_get_stmt_cost (vector_stmt));
+                                  + vect_get_stmt_cost (vec_perm));
 
         /* FIXME: If the misalignment remains fixed across the iterations of
            the containing loop, the following cost should be added to the
@@ -1057,6 +1096,9 @@ vect_get_load_cost (struct data_reference *dr, int ncopies,
         if (targetm.vectorize.builtin_mask_for_load)
           *inside_cost += vect_get_stmt_cost (vector_stmt);
 
+        if (vect_print_dump_info (REPORT_COST))
+          fprintf (vect_dump, "vect_model_load_cost: explicit realign");
+
         break;
       }
     case dr_explicit_realign_optimized:
@@ -1080,7 +1122,12 @@ vect_get_load_cost (struct data_reference *dr, int ncopies,
           }
 
         *inside_cost += ncopies * (vect_get_stmt_cost (vector_load)
-          + vect_get_stmt_cost (vector_stmt));
+                                  + vect_get_stmt_cost (vec_perm));
+
+        if (vect_print_dump_info (REPORT_COST))
+          fprintf (vect_dump,
+                  "vect_model_load_cost: explicit realign optimized");
+
         break;
       }
 
@@ -2392,16 +2439,19 @@ vectorizable_conversion (gimple stmt, gimple_stmt_iterator *gsi,
       if (vect_print_dump_info (REPORT_DETAILS))
        fprintf (vect_dump, "=== vectorizable_conversion ===");
       if (code == FIX_TRUNC_EXPR || code == FLOAT_EXPR)
-       STMT_VINFO_TYPE (stmt_info) = type_conversion_vec_info_type;
+        {
+         STMT_VINFO_TYPE (stmt_info) = type_conversion_vec_info_type;
+         vect_model_simple_cost (stmt_info, ncopies, dt, NULL);
+       }
       else if (modifier == NARROW)
        {
          STMT_VINFO_TYPE (stmt_info) = type_demotion_vec_info_type;
-         vect_model_simple_cost (stmt_info, ncopies, dt, NULL);
+         vect_model_promotion_demotion_cost (stmt_info, dt, multi_step_cvt);
        }
       else
        {
          STMT_VINFO_TYPE (stmt_info) = type_promotion_vec_info_type;
-         vect_model_simple_cost (stmt_info, 2 * ncopies, dt, NULL);
+         vect_model_promotion_demotion_cost (stmt_info, dt, multi_step_cvt);
        }
       VEC_free (tree, heap, interm_types);
       return true;