From 6083e7aa7bb61ea5bf13897ab36396a084d2074c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= <targos@protonmail.com>
Date: Fri, 17 Mar 2017 09:21:58 +0100
Subject: [PATCH] benchmark: avoid TurboFan deopt in arrays bench

Something unidentified at the moment is causing the arrays benchmarks to
deopt when run with the TurboFan compiler. Refactor the test to use an
inner function that can be correctly optimized by TurboFan and
Crankshaft.

PR-URL: https://github.com/nodejs/node/pull/11894
Ref: https://github.com/nodejs/node/issues/11851#issuecomment-287106714
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
---
 benchmark/arrays/var-int.js    | 6 +++++-
 benchmark/arrays/zero-float.js | 6 +++++-
 benchmark/arrays/zero-int.js   | 6 +++++-
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/benchmark/arrays/var-int.js b/benchmark/arrays/var-int.js
index 36b0a908a59a4f..9ebad611661929 100644
--- a/benchmark/arrays/var-int.js
+++ b/benchmark/arrays/var-int.js
@@ -27,9 +27,13 @@ function main(conf) {
   bench.start();
   var arr = new clazz(n * 1e6);
   for (var i = 0; i < 10; ++i) {
+    run();
+  }
+  bench.end(n);
+
+  function run() {
     for (var j = 0, k = arr.length; j < k; ++j) {
       arr[j] = (j ^ k) & 127;
     }
   }
-  bench.end(n);
 }
diff --git a/benchmark/arrays/zero-float.js b/benchmark/arrays/zero-float.js
index 047e179234f33a..a74cd8ec5bacca 100644
--- a/benchmark/arrays/zero-float.js
+++ b/benchmark/arrays/zero-float.js
@@ -27,9 +27,13 @@ function main(conf) {
   bench.start();
   var arr = new clazz(n * 1e6);
   for (var i = 0; i < 10; ++i) {
+    run();
+  }
+  bench.end(n);
+
+  function run() {
     for (var j = 0, k = arr.length; j < k; ++j) {
       arr[j] = 0.0;
     }
   }
-  bench.end(n);
 }
diff --git a/benchmark/arrays/zero-int.js b/benchmark/arrays/zero-int.js
index 4e5c97e8af0b9c..7f61aa1a820042 100644
--- a/benchmark/arrays/zero-int.js
+++ b/benchmark/arrays/zero-int.js
@@ -27,9 +27,13 @@ function main(conf) {
   bench.start();
   var arr = new clazz(n * 1e6);
   for (var i = 0; i < 10; ++i) {
+    run();
+  }
+  bench.end(n);
+
+  function run() {
     for (var j = 0, k = arr.length; j < k; ++j) {
       arr[j] = 0;
     }
   }
-  bench.end(n);
 }