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Revert of [turbofan] Remove value numbering from late optimization pass. (patchset #1 id:1 of https://codereview.chromium.org/2570813002/ )

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Reason for revert:
Tanks Kraken astar benchmark.

Original issue's description:
> [turbofan] Remove value numbering from late optimization pass.
>
> Committed: https://crrev.com/e32535af5a5f4776a58ef434ea77d56528ded427
> Cr-Commit-Position: refs/heads/master@{#41672}

TBR=bmeurer@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.

Review-Url: https://codereview.chromium.org/2579273002
Cr-Commit-Position: refs/heads/master@{#41748}
This commit is contained in:
jarin 2016-12-16 02:20:46 -08:00 committed by Commit bot
parent 6709edd7f6
commit c5ea51259c
1 changed files with 2 additions and 0 deletions
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2
src/compiler/pipeline.cc
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@ -1140,6 +1140,7 @@ struct LateOptimizationPhase {
data->jsgraph(), temp_zone);
DeadCodeElimination dead_code_elimination(&graph_reducer, data->graph(),
data->common());
ValueNumberingReducer value_numbering(temp_zone, data->graph()->zone());
MachineOperatorReducer machine_reducer(data->jsgraph());
CommonOperatorReducer common_reducer(&graph_reducer, data->graph(),
data->common(), data->machine());
@ -1148,6 +1149,7 @@ struct LateOptimizationPhase {
TailCallOptimization tco(data->common(), data->graph());
AddReducer(data, &graph_reducer, &branch_condition_elimination);
AddReducer(data, &graph_reducer, &dead_code_elimination);
AddReducer(data, &graph_reducer, &value_numbering);
AddReducer(data, &graph_reducer, &machine_reducer);
AddReducer(data, &graph_reducer, &common_reducer);
AddReducer(data, &graph_reducer, &select_lowering);