Add informational toggle that indirect baseVertex is broken on Mac Intel

Bug: dawn:966
Change-Id: I5f8183911eb04d4809c30cb7c1efdeca414f3329
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/114662
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>

src/dawn/native/Toggles.cpp

@@ -337,7 +337,12 @@ static constexpr ToggleEnumAndInfoList kToggleNameAndInfoList = {{
       "MacOS 12.0+ Intel has a bug where the sample mask is only applied for the last color "
       "target. If there are multiple color targets, all but the last one will use a sample mask "
       "of zero.",
-      "https://crbug.com/dawn/1462"}}
+      "https://crbug.com/dawn/1462"}},
+    {Toggle::NoWorkaroundIndirectBaseVertexNotApplied,
+     {"no_workaround_indirect_base_vertex_not_applied",
+      "MacOS Intel < Gen9 has a bug where indirect base vertex is not applied for "
+      "drawIndexedIndirect. Draws are done as if it is always zero.",
+      "https://crbug.com/dawn/966"}}
     // Comment to separate the }} so it is clearer what to copy-paste to add a toggle.
 }};
 }  // anonymous namespace

src/dawn/native/Toggles.h

@@ -86,6 +86,7 @@ enum class Toggle {
 
     // Unresolved issues.
     NoWorkaroundSampleMaskBecomesZeroForAllButLastColorTarget,
+    NoWorkaroundIndirectBaseVertexNotApplied,
 
     EnumCount,
     InvalidEnum = EnumCount,

src/dawn/native/metal/DeviceMTL.mm

@@ -264,6 +264,10 @@ void Device::InitTogglesFromDriver() {
                 isOperatingSystemAtLeastVersion:NSOperatingSystemVersion{12, 0, 0}]) {
             ForceSetToggle(Toggle::NoWorkaroundSampleMaskBecomesZeroForAllButLastColorTarget, true);
         }
+        if (gpu_info::IsIntelGen7(vendorId, deviceId) ||
+            gpu_info::IsIntelGen8(vendorId, deviceId)) {
+            ForceSetToggle(Toggle::NoWorkaroundIndirectBaseVertexNotApplied, true);
+        }
     }
 #endif
 }