child_process: fix deoptimizing use of arguments

Removed or fixed use of arguments in execFile(),
normalizeExecArgs(), and normalizeSpawnArguments().

Refs: https://github.com/nodejs/node/issues/10323
Refs: https://bugs.chromium.org/p/v8/issues/detail?id=6010

Backport-Of: https://github.com/nodejs/node/pull/11535
PR-URL: https://github.com/nodejs/node/pull/11748
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 146 insertions, 0 deletions

diff --git a/benchmark/child_process/child-process-params.js b/benchmark/child_process/child-process-params.js
new file mode 100644
index 00000000000..644b2136a0f
--- /dev/null
+++ b/benchmark/child_process/child-process-params.js
@@ -0,0 +1,146 @@
+'use strict';
+
+const common = require('../common.js');
+const cp = require('child_process');
+
+const command = 'echo';
+const args = ['hello'];
+const options = {};
+const cb = () => {};
+
+const configs = {
+  n: [1e3],
+  methodName: [
+    'exec', 'execSync',
+    'execFile', 'execFileSync',
+    'spawn', 'spawnSync',
+  ],
+  params: [1, 2, 3, 4],
+};
+
+const bench = common.createBenchmark(main, configs);
+
+function main(conf) {
+  const n = +conf.n;
+  const methodName = conf.methodName;
+  const params = +conf.params;
+
+  const method = cp[methodName];
+
+  switch (methodName) {
+    case 'exec':
+      switch (params) {
+        case 1:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command).kill();
+          bench.end(n);
+          break;
+        case 2:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command, options).kill();
+          bench.end(n);
+          break;
+        case 3:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command, options, cb).kill();
+          bench.end(n);
+          break;
+      }
+      break;
+    case 'execSync':
+      switch (params) {
+        case 1:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command);
+          bench.end(n);
+          break;
+        case 2:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command, options);
+          bench.end(n);
+          break;
+      }
+      break;
+    case 'execFile':
+      switch (params) {
+        case 1:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command).kill();
+          bench.end(n);
+          break;
+        case 2:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command, args).kill();
+          bench.end(n);
+          break;
+        case 3:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command, args, options).kill();
+          bench.end(n);
+          break;
+        case 4:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command, args, options, cb).kill();
+          bench.end(n);
+          break;
+      }
+      break;
+    case 'execFileSync':
+      switch (params) {
+        case 1:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command);
+          bench.end(n);
+          break;
+        case 2:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command, args);
+          bench.end(n);
+          break;
+        case 3:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command, args, options);
+          bench.end(n);
+          break;
+      }
+      break;
+    case 'spawn':
+      switch (params) {
+        case 1:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command).kill();
+          bench.end(n);
+          break;
+        case 2:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command, args).kill();
+          bench.end(n);
+          break;
+        case 3:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command, args, options).kill();
+          bench.end(n);
+          break;
+      }
+      break;
+    case 'spawnSync':
+      switch (params) {
+        case 1:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command);
+          bench.end(n);
+          break;
+        case 2:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command, args);
+          bench.end(n);
+          break;
+        case 3:
+          bench.start();
+          for (let i = 0; i < n; i++) method(command, args, options);
+          bench.end(n);
+          break;
+      }
+      break;
+  }
+}