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authorBin Cheng <bin.cheng@arm.com>2017-05-02 16:21:34 +0000
committerBin Cheng <amker@gcc.gnu.org>2017-05-02 16:21:34 +0000
commit13fdeaaf042a569c785f9bc5dcf1bf49a3ee69bc (patch)
treea16902c00d8215fd1c725a6785bc0ce8b49a9631 /gcc/tree-ssa-loop-ivopts.c
parentdb61fc7a63008db8abf26f6a96ac8dde45f53383 (diff)
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tree-ssa-loop-ivopts.c (get_scaled_computation_cost_at): Delete parameter cand.
* tree-ssa-loop-ivopts.c (get_scaled_computation_cost_at): Delete parameter cand. Update dump information. (get_computation_cost): Update uses. From-SVN: r247519
Diffstat (limited to 'gcc/tree-ssa-loop-ivopts.c')
-rw-r--r--gcc/tree-ssa-loop-ivopts.c19
1 files changed, 9 insertions, 10 deletions
diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c
index 90392ce..7caa40d 100644
--- a/gcc/tree-ssa-loop-ivopts.c
+++ b/gcc/tree-ssa-loop-ivopts.c
@@ -4810,12 +4810,11 @@ get_loop_invariant_expr (struct ivopts_data *data, tree ubase,
}
/* Scale (multiply) the computed COST (except scratch part that should be
- hoisted out a loop) by header->frequency / AT->frequency,
- which makes expected cost more accurate. */
+ hoisted out a loop) by header->frequency / AT->frequency, which makes
+ expected cost more accurate. */
static comp_cost
-get_scaled_computation_cost_at (ivopts_data *data, gimple *at, iv_cand *cand,
- comp_cost cost)
+get_scaled_computation_cost_at (ivopts_data *data, gimple *at, comp_cost cost)
{
int loop_freq = data->current_loop->header->frequency;
int bb_freq = gimple_bb (at)->frequency;
@@ -4826,9 +4825,9 @@ get_scaled_computation_cost_at (ivopts_data *data, gimple *at, iv_cand *cand,
= cost.scratch + (cost.cost - cost.scratch) * bb_freq / loop_freq;
if (dump_file && (dump_flags & TDF_DETAILS))
- fprintf (dump_file, "Scaling iv_use based on cand %d "
+ fprintf (dump_file, "Scaling cost based on bb prob "
"by %2.2f: %d (scratch: %d) -> %d (%d/%d)\n",
- cand->id, 1.0f * bb_freq / loop_freq, cost.cost,
+ 1.0f * bb_freq / loop_freq, cost.cost,
cost.scratch, scaled_cost, bb_freq, loop_freq);
cost.cost = scaled_cost;
@@ -5024,7 +5023,7 @@ get_computation_cost (struct ivopts_data *data, struct iv_use *use,
mem_mode,
TYPE_ADDR_SPACE (TREE_TYPE (utype)),
speed, stmt_is_after_inc, can_autoinc);
- return get_scaled_computation_cost_at (data, at, cand, cost);
+ return get_scaled_computation_cost_at (data, at, cost);
}
/* Otherwise estimate the costs for computing the expression. */
@@ -5032,7 +5031,7 @@ get_computation_cost (struct ivopts_data *data, struct iv_use *use,
{
if (ratio != 1)
cost += mult_by_coeff_cost (ratio, TYPE_MODE (ctype), speed);
- return get_scaled_computation_cost_at (data, at, cand, cost);
+ return get_scaled_computation_cost_at (data, at, cost);
}
/* Symbol + offset should be compile-time computable so consider that they
@@ -5052,7 +5051,7 @@ get_computation_cost (struct ivopts_data *data, struct iv_use *use,
if (aratio != 1)
cost += mult_by_coeff_cost (aratio, TYPE_MODE (ctype), speed);
- return get_scaled_computation_cost_at (data, at, cand, cost);
+ return get_scaled_computation_cost_at (data, at, cost);
fallback:
if (can_autoinc)
@@ -5069,7 +5068,7 @@ fallback:
cost = comp_cost (computation_cost (comp, speed), 0);
- return get_scaled_computation_cost_at (data, at, cand, cost);
+ return get_scaled_computation_cost_at (data, at, cost);
}
/* Determines cost of computing the use in GROUP with CAND in a generic