From 38b295de38515b8e05ea0232c4732e4088110b16 Mon Sep 17 00:00:00 2001
From: Corentin Wallez <cwallez@chromium.org>
Date: Fri, 20 Sep 2019 17:40:53 +0000
Subject: [PATCH] Fix availability check for MTLCopyAllDevices

This caused failure on macOS 10.11 because Dawn decided Metal is
supported but would go ahead and reach an UNREACHABLE() block.

BUG=chromium:1006181

Change-Id: I20739a058adaa60a71ec489e07b36ebf48ef871a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/11420
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
---
 src/dawn_native/metal/BackendMTL.mm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/dawn_native/metal/BackendMTL.mm b/src/dawn_native/metal/BackendMTL.mm
index 28565dd809..a52536e890 100644
--- a/src/dawn_native/metal/BackendMTL.mm
+++ b/src/dawn_native/metal/BackendMTL.mm
@@ -220,7 +220,7 @@ namespace dawn_native { namespace metal {
     std::vector<std::unique_ptr<AdapterBase>> Backend::DiscoverDefaultAdapters() {
         std::vector<std::unique_ptr<AdapterBase>> adapters;
 
-        if (@available(macOS 10.12, *)) {
+        if (@available(macOS 10.11, *)) {
             NSArray<id<MTLDevice>>* devices = MTLCopyAllDevices();
 
             for (id<MTLDevice> device in devices) {