commit 38b295de38515b8e05ea0232c4732e4088110b16
author Corentin Wallez <cwallez@chromium.org> Fri Sep 20 17:40:53 2019 +0000
committer Commit Bot service account <commit-bot@chromium.org> Fri Sep 20 17:40:53 2019 +0000
tree 0c1426acc06460ed49c5679636ecbe3dc5bf1ddc
parent a9a84dfe1e154def7fcc7b7cb0ea27386489a8fc

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

diff --git a/src/dawn_native/metal/BackendMTL.mm b/src/dawn_native/metal/BackendMTL.mm
index 28565dd..a52536e 100644
--- a/src/dawn_native/metal/BackendMTL.mm
+++ b/src/dawn_native/metal/BackendMTL.mm
@@ -220,7 +220,7 @@
     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) {