From 4232c89c9eb18b32a6e87bfbb46c8d5862f52fb3 Mon Sep 17 00:00:00 2001
From: Ryan Dahl <ry@tinyclouds.org>
Date: Sun, 7 Apr 2019 22:28:28 -0400
Subject: Use -O3 instead of -O (#2070)

As recommended in
https://www.reddit.com/r/rust/comments/balb45/why_is_hypers_max_latency_so_high_in_deno/ekck1ww/
---
 build_extra/rust/rust.gni | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'build_extra')

diff --git a/build_extra/rust/rust.gni b/build_extra/rust/rust.gni
index 8bd1bc085..cd755d6d3 100644
--- a/build_extra/rust/rust.gni
+++ b/build_extra/rust/rust.gni
@@ -209,7 +209,10 @@ template("rust_crate") {
       args += [ "-g" ]
     }
     if (is_official_build) {
-      args += [ "-O" ]
+      args += [
+        "-C",
+        "opt-level=3",
+      ]
     }
     if (is_test) {
       args += [ "--test" ]
-- 
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