commit 9562469453c2f0a79f49803a1d881e9b19adbc4e
author Natalie Chouinard <chouinard@google.com> Fri Aug 09 19:03:38 2024 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> Fri Aug 09 19:03:38 2024 +0000
tree c3098d826ae486cbad9f5027cfd9cd81d196c93e
parent e79bbabd43d1870d5e20a01c82855f3d7b623b36

[tint] Implement subgroupAll and subgroupAny

Implement subgroupAll and subgroupAny builtins for WGSL, SPIR-V IR
backend (not AST), MSL AST and IR backends and HLSL AST and IR backends.
Subgroup builtins are not yet implemented for the GLSL backend.

Bug: 354738715
Change-Id: I9b3d1401ccca9b56e361f2b893812e3d3a42b4e2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/201916
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Natalie Chouinard <chouinard@google.com>

src/tint/lang/core/builtin_fn.cc

diff --git a/src/tint/lang/core/builtin_fn.cc b/src/tint/lang/core/builtin_fn.cc
index dd3b048..ad8a8a8 100644
--- a/src/tint/lang/core/builtin_fn.cc
+++ b/src/tint/lang/core/builtin_fn.cc
@@ -432,6 +432,12 @@
     if (name == "subgroupMax") {
         return BuiltinFn::kSubgroupMax;
     }
+    if (name == "subgroupAll") {
+        return BuiltinFn::kSubgroupAll;
+    }
+    if (name == "subgroupAny") {
+        return BuiltinFn::kSubgroupAny;
+    }
     return BuiltinFn::kNone;
 }
 
@@ -701,6 +707,10 @@
             return "subgroupMin";
         case BuiltinFn::kSubgroupMax:
             return "subgroupMax";
+        case BuiltinFn::kSubgroupAll:
+            return "subgroupAll";
+        case BuiltinFn::kSubgroupAny:
+            return "subgroupAny";
     }
     return "<unknown>";
 }