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Add missing edge probabilities in expand_oacc_for, tile case 

;;   basic block 11, loop depth 2, freq 0, maybe hot
 ;;    prev block 22, next block 23, flags: (NEW, REACHABLE)
 ;;    pred:       22 (TRUE_VALUE)
 ;;                24 (TRUE_VALUE)
   ...
   if (.e_offset.15D.1971 < .e_bound.14D.1972)
-    goto <bb 23>; [100.00%] [count: INV]
+    goto <bb 23>; [80.01%] [count: INV]
   else
-    goto <bb 24>; [INV] [count: INV]
+    goto <bb 24>; [19.99%] [count: INV]

 ;;   basic block 23, loop depth 3, freq 0, maybe hot
 ;;    prev block 11, next block 24, flags: (NEW)
 ;;    pred:       11 [always]  (TRUE_VALUE)
 ;;                23 (TRUE_VALUE)
   ixD.1974 = .outer.4D.1967 + .e_offset.15D.1971;
   .e_offset.15D.1971 = .e_offset.15D.1971 + .e_step.16D.1973;
   if (.e_offset.15D.1971 < .e_bound.14D.1972)
-    goto <bb 23>; [INV] [count: INV]
+    goto <bb 23>; [80.01%] [count: INV]
   else
-    goto <bb 24>; [100.00%] [count: INV]
+    goto <bb 24>; [19.99%] [count: INV]

2017-08-06  Tom de Vries  <tom@codesourcery.com>

	* omp-expand.c (expand_oacc_for): Add missing edge probability for tile
	and element loops.

From-SVN: r250900
This commit is contained in:
Tom de Vries 2017-08-06 09:56:38 +00:00 committed by Tom de Vries
parent f38057cc11
commit 9fba2943f1
2 changed files with 14 additions and 2 deletions
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5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2017-08-06 Tom de Vries <tom@codesourcery.com>
* omp-expand.c (expand_oacc_for): Add missing edge probability for tile
and element loops.
2017-08-06 Tom de Vries <tom@codesourcery.com>
* omp-expand.c (expand_oacc_for): Add missing edge probability for chunk

11
gcc/omp-expand.c
View File

@ -5663,9 +5663,16 @@ expand_oacc_for (struct omp_region *region, struct omp_for_data *fd)
cont_bb = split->dest;
split->flags ^= EDGE_FALLTHRU | EDGE_FALSE_VALUE;
make_edge (elem_cont_bb, elem_body_bb, EDGE_TRUE_VALUE);
split->probability = profile_probability::unlikely ().guessed ();
edge latch_edge
= make_edge (elem_cont_bb, elem_body_bb, EDGE_TRUE_VALUE);
latch_edge->probability = profile_probability::likely ().guessed ();
make_edge (body_bb, cont_bb, EDGE_FALSE_VALUE);
edge skip_edge = make_edge (body_bb, cont_bb, EDGE_FALSE_VALUE);
skip_edge->probability = profile_probability::unlikely ().guessed ();
edge loop_entry_edge = EDGE_SUCC (body_bb, 1 - skip_edge->dest_idx);
loop_entry_edge->probability
= profile_probability::likely ().guessed ();
gsi = gsi_for_stmt (cont_stmt);
}