[FIX][Vulkan] Avoid default PrimType construction

tqchen · tqchen · commit b42ff437083c · 2026-06-23T19:29:03.000Z
diff --git a/src/backend/vulkan/codegen/ir_builder.cc b/src/backend/vulkan/codegen/ir_builder.cc
@@ -394,13 +394,11 @@ Value IRBuilder::GetBuiltInValue(spv::BuiltIn built_in, uint32_t index, const st
     }
   }
 
-  PrimType data_type;
-  PrimType global_arr_type;
+  PrimType data_type = PrimType::Int(32);
+  PrimType global_arr_type = data_type.WithLanes(3);
   switch (built_in) {
     case spv::BuiltInLocalInvocationId:
     case spv::BuiltInWorkgroupId:
-      data_type = PrimType::Int(32);
-      global_arr_type = data_type.WithLanes(3);
       break;
 
     default:

Original file line number	Diff line number	Diff line change
`@@ -394,13 +394,11 @@ Value IRBuilder::GetBuiltInValue(spv::BuiltIn built_in, uint32_t index, const st`
`394`	`394`	`}`
`395`	`395`	`}`
`396`	`396`
`397`		`- PrimType data_type;`
`398`		`- PrimType global_arr_type;`
	`397`	`+ PrimType data_type = PrimType::Int(32);`
	`398`	`+ PrimType global_arr_type = data_type.WithLanes(3);`
`399`	`399`	`switch (built_in) {`
`400`	`400`	`case spv::BuiltInLocalInvocationId:`
`401`	`401`	`case spv::BuiltInWorkgroupId:`
`402`		`- data_type = PrimType::Int(32);`
`403`		`- global_arr_type = data_type.WithLanes(3);`
`404`	`402`	`break;`
`405`	`403`
`406`	`404`	`default:`