From 189044298237d38856daf92389248c4f14c70759 Mon Sep 17 00:00:00 2001
From: Jacob Hughes <j@distanthills.org>
Date: Sun, 1 Oct 2023 20:08:30 -0400
Subject: [PATCH] subgroup: SubgroupInvocationId is only valid in compute
 stages

---
 src/valid/interface.rs | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/valid/interface.rs b/src/valid/interface.rs
index 67260fe71c..cb85d2901c 100644
--- a/src/valid/interface.rs
+++ b/src/valid/interface.rs
@@ -299,7 +299,15 @@ impl VaryingContext<'_> {
                                 width,
                             },
                     ),
-                    Bi::SubgroupInvocationId | Bi::SubgroupSize => (
+                    Bi::SubgroupInvocationId => (
+                        self.stage == St::Compute && !self.output,
+                        *ty_inner
+                            == Ti::Scalar {
+                                kind: Sk::Uint,
+                                width,
+                            },
+                    ),
+                    Bi::SubgroupSize => (
                         match self.stage {
                             St::Compute | St::Fragment => !self.output,
                             St::Vertex => false,