add support for Primitive(Point|Line|Triangle)IndicesEXT and CullPrimitiveEXT, from @BeastLe9enD

Author: BeastLe9enD

crates/rustc_codegen_spirv/src/symbols.rs

@@ -118,6 +118,13 @@ const BUILTINS: &[(&str, BuiltIn)] = {
         ("layer_per_view_nv", LayerPerViewNV),
         ("mesh_view_count_nv", MeshViewCountNV),
         ("mesh_view_indices_nv", MeshViewIndicesNV),
+        ("primitive_point_indices_ext", PrimitivePointIndicesEXT),
+        ("primitive_line_indices_ext", PrimitiveLineIndicesEXT),
+        (
+            "primitive_triangle_indices_ext",
+            PrimitiveTriangleIndicesEXT,
+        ),
+        ("cull_primitive_ext", CullPrimitiveEXT),
         ("bary_coord", BaryCoordKHR),
         ("bary_coord_no_persp", BaryCoordNoPerspKHR),
         ("frag_size_ext", FragSizeEXT),
@@ -263,6 +270,17 @@ const EXECUTION_MODES: &[(&str, ExecutionMode, ExecutionModeExtraDim)] = {
         ("output_primitives_nv", OutputPrimitivesNV, Value),
         ("derivative_group_quads_nv", DerivativeGroupQuadsNV, None),
         ("output_triangles_nv", OutputTrianglesNV, None),
+        ("output_lines_ext", ExecutionMode::OutputLinesEXT, None),
+        (
+            "output_triangles_ext",
+            ExecutionMode::OutputTrianglesEXT,
+            None,
+        ),
+        (
+            "output_primitives_ext",
+            ExecutionMode::OutputPrimitivesEXT,
+            Value,
+        ),
         (
             "pixel_interlock_ordered_ext",
             PixelInterlockOrderedEXT,