diff --git a/tests/main.cpp b/tests/main.cpp
index 29c91f1..f8dce0f 100644
--- a/tests/main.cpp
+++ b/tests/main.cpp
@@ -45,19 +45,20 @@ public:
         const auto main_func = Emit(Name(OpFunction(t_void, spv::FunctionControlMask::MaskNone, OpTypeFunction(t_void)), "main"));
         Emit(OpLabel());
 
-        const auto ptr_pos_x = Emit(OpAccessChain(in_float, in_pos, {OpConstant(t_uint, 0u)}));
-        const auto ptr_pos_y = Emit(OpAccessChain(in_float, in_pos, {OpConstant(t_uint, 1u)}));
+        const auto ptr_pos_x = Emit(OpAccessChain(in_float, in_pos, {Constant(t_uint, 0u)}));
+        const auto ptr_pos_y = Emit(OpAccessChain(in_float, in_pos, {Constant(t_uint, 1u)}));
 
         const auto pos_x = Emit(OpLoad(t_float, ptr_pos_x));
         const auto pos_y = Emit(OpLoad(t_float, ptr_pos_y));
 
         auto tmp_position = Emit(OpUndef(float4));
+        Decorate(tmp_position, spv::Decoration::FPRoundingMode, {static_cast<u32>(spv::FPRoundingMode::RTE)});
         tmp_position = Emit(OpCompositeInsert(float4, pos_x, tmp_position, {0}));
         tmp_position = Emit(OpCompositeInsert(float4, pos_y, tmp_position, {1}));
-        tmp_position = Emit(OpCompositeInsert(float4, OpConstant(t_float, 0.f), tmp_position, {2}));
-        tmp_position = Emit(OpCompositeInsert(float4, OpConstant(t_float, 1.f), tmp_position, {3}));
+        tmp_position = Emit(OpCompositeInsert(float4, Constant(t_float, 0.f), tmp_position, {2}));
+        tmp_position = Emit(OpCompositeInsert(float4, Constant(t_float, 1.f), tmp_position, {3}));
 
-        const auto gl_position = Emit(OpAccessChain(out_float4, per_vertex, {OpConstant(t_uint, 0u)}));
+        const auto gl_position = Emit(OpAccessChain(out_float4, per_vertex, {Constant(t_uint, 0u)}));
         Emit(OpStore(gl_position, tmp_position));
 
         Emit(OpReturn());