1 // RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -Wno-unused-value -triple spir-unknown-unknown 2 3 #pragma OPENCL EXTENSION cl_khr_fp16 : disable 4 constant float f = 1.0h; // expected-error{{half precision constant requires cl_khr_fp16}} 5 6 half half_disabled(half *p, // expected-error{{declaring function return value of type 'half' is not allowed}} 7 half h) // expected-error{{declaring function parameter of type 'half' is not allowed}} 8 { 9 half a[2]; // expected-error{{declaring variable of type 'half [2]' is not allowed}} 10 half b; // expected-error{{declaring variable of type 'half' is not allowed}} 11 *p; // expected-error{{loading directly from pointer to type 'half' is not allowed}} 12 p[1]; // expected-error{{loading directly from pointer to type 'half' is not allowed}} 13 14 float c = 1.0f; 15 b = (half) c; // expected-error{{casting to type 'half' is not allowed}} 16 c = (float) 1.0h; // expected-error{{half precision constant requires cl_khr_fp16}} 17 b = 1.0h; // expected-error{{half precision constant requires cl_khr_fp16}} 18 19 half *allowed = &p[1]; 20 half *allowed2 = &*p; 21 half *allowed3 = p + 1; 22 23 return h; 24 } 25 26 // Exactly the same as above but with the cl_khr_fp16 extension enabled. 27 #pragma OPENCL EXTENSION cl_khr_fp16 : enable 28 constant half a = 1.0h; 29 half half_enabled(half *p, half h) 30 { 31 half a[2]; 32 half b; 33 *p; 34 p[1]; 35 36 float c = 1.0f; 37 b = (half) c; 38 c = (float) 1.0h; 39 b = 1.0h; 40 41 half *allowed = &p[1]; 42 half *allowed2 = &*p; 43 half *allowed3 = p + 1; 44 45 return h; 46 } 47
