Optimize access of array member in a structure.

Author: shwqf

src/codegen/llvm.zig

@@ -5858,17 +5858,13 @@ pub const FuncGen = struct {
                     const load_ptr = load_data.ty_op.operand;
                     const load_ptr_tag = self.air.instructions.items(.tag)[Air.refToIndex(load_ptr).?];
                     switch (load_ptr_tag) {
-                        .struct_field_ptr,
-                        .struct_field_ptr_index_0,
-                        .struct_field_ptr_index_1,
-                        .struct_field_ptr_index_2,
-                        .struct_field_ptr_index_3 => {
+                        .struct_field_ptr, .struct_field_ptr_index_0, .struct_field_ptr_index_1, .struct_field_ptr_index_2, .struct_field_ptr_index_3 => {
                             const load_ptr_inst = try self.resolveInst(load_ptr);
                             const gep = self.builder.buildInBoundsGEP(array_llvm_ty, load_ptr_inst, &indices, indices.len, "");
                             array_llvm_val.removeUnusedLoadArray();
                             return self.builder.buildLoad(elem_llvm_ty, gep, "");
                         },
-                        else => {}
+                        else => {},
                     }
                 }
                 const elem_ptr = self.builder.buildInBoundsGEP(array_llvm_ty, array_llvm_val, &indices, indices.len, "");