spirv: replace some unreachables with compile errors

1 files changed, 10 insertions, 2 deletions

diff --git a/src/codegen/spirv/Module.zig b/src/codegen/spirv/Module.zig
index 317e32c878..30f9b0bc54 100644
--- a/src/codegen/spirv/Module.zig
+++ b/src/codegen/spirv/Module.zig
@@ -345,22 +345,30 @@ pub fn finalize(self: *Module, a: Allocator) ![]Word {
         if (self.target.cpu.features.isEnabled(feature.index)) {
             const feature_tag: std.Target.spirv.Feature = @enumFromInt(feature.index);
             switch (feature_tag) {
+                // Versions
                 .v1_0, .v1_1, .v1_2, .v1_3, .v1_4, .v1_5, .v1_6 => {},
+                // Features with no dependencies
                 .int8 => try self.addCapability(.Int8),
                 .int16 => try self.addCapability(.Int16),
                 .int64 => try self.addCapability(.Int64),
                 .float16 => try self.addCapability(.Float16),
                 .float64 => try self.addCapability(.Float64),
+                .matrix => try self.addCapability(.Matrix),
+                .storage_push_constant16 => {
+                    try self.addExtension("SPV_KHR_16bit_storage");
+                    try self.addCapability(.StoragePushConstant16);
+                },
                 .addresses => if (self.hasFeature(.shader)) {
-                    try self.addCapability(.PhysicalStorageBufferAddresses);
                     try self.addExtension("SPV_KHR_physical_storage_buffer");
+                    try self.addCapability(.PhysicalStorageBufferAddresses);
                 } else {
                     try self.addCapability(.Addresses);
                 },
-                .matrix => try self.addCapability(.Matrix),
+                // Kernel
                 .kernel => try self.addCapability(.Kernel),
                 .generic_pointer => try self.addCapability(.GenericPointer),
                 .vector16 => try self.addCapability(.Vector16),
+                // Shader
                 .shader => try self.addCapability(.Shader),
             }
         }