From a7e4653c22ac39877eb75d6dd69d6f41af89a4a9 Mon Sep 17 00:00:00 2001
From: Brad Kotsopoulos <bkotsopoulos@snapchat.com>
Date: Mon, 6 Dec 2021 13:20:14 -0500
Subject: [PATCH] Canonical optimization levels in bazel toolchain (#940)

---
 bazel/emscripten_toolchain/crosstool.bzl | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/bazel/emscripten_toolchain/crosstool.bzl b/bazel/emscripten_toolchain/crosstool.bzl
index 069ea70..b4883ea 100644
--- a/bazel/emscripten_toolchain/crosstool.bzl
+++ b/bazel/emscripten_toolchain/crosstool.bzl
@@ -572,9 +572,10 @@ def _impl(ctx):
         flag_set(
             actions = all_compile_actions +
                       all_link_actions,
-            flags = ["-O3"],
+            flags = ["-O2"],
             features = ["opt"],
         ),
+
         # Users can override opt-level with semantic names...
         flag_set(
             actions = all_compile_actions +
@@ -598,7 +599,7 @@ def _impl(ctx):
         flag_set(
             actions = all_compile_actions +
                       all_link_actions,
-            flags = ["-O2"],
+            flags = ["-O0"],
             features = ["fastbuild"],
         ),