SKIP: FAILED Validation Failure: #include using namespace metal; void textureSampleCompare_3a5923() { float res = arg_0.sample_compare(arg_1, float2(), 1.0f); } fragment void fragment_main() { textureSampleCompare_3a5923(); return; } tint_VUn9yJ.metal:5:15: error: use of undeclared identifier 'arg_0' float res = arg_0.sample_compare(arg_1, float2(), 1.0f); ^ tint_VUn9yJ.metal:5:36: error: use of undeclared identifier 'arg_1' float res = arg_0.sample_compare(arg_1, float2(), 1.0f); ^ 2 errors generated.