From dfe01818fe3044b22dfd9a49d3275b19df1fca1a Mon Sep 17 00:00:00 2001
From: yangguo <yangguo@chromium.org>
Date: Thu, 30 Apr 2015 07:32:24 -0700
Subject: [PATCH] Initialize typed array content for rempio2result during
 bootstrapping.

This is to pacify MSAN.

R=mvstanton@chromium.org
BUG=465759
LOG=N

Review URL: https://codereview.chromium.org/1119693004

Cr-Commit-Position: refs/heads/master@{#28170}
---
 src/bootstrapper.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index 4117ce07e5..6b1c6dd48e 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1645,8 +1645,10 @@ void Genesis::InitializeBuiltinTypedArrays() {
 
   {  // Initialize a result array for rempio2 calculation
     const size_t num_elements = 2;
-    SetBuiltinTypedArray<double>(isolate(), builtins, kExternalFloat64Array,
-                                 NULL, num_elements, "rempio2result");
+    double* data =
+        SetBuiltinTypedArray<double>(isolate(), builtins, kExternalFloat64Array,
+                                     NULL, num_elements, "rempio2result");
+    for (size_t i = 0; i < num_elements; i++) data[i] = 0;
   }
 }