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// RUN: %clang_cc1 "-triple" "nvptx-nvidia-cuda" -fcuda-is-device -fsyntax-only -verify \
// RUN: -verify-ignore-unexpected=note %s
#include "__clang_cuda_builtin_vars.h"
__attribute__((global))
void kernel(int *out) {
int i = 0;
out[i++] = threadIdx.x;
threadIdx.x = 0; // expected-error {{no setter defined for property 'x'}}
out[i++] = threadIdx.y;
threadIdx.y = 0; // expected-error {{no setter defined for property 'y'}}
out[i++] = threadIdx.z;
threadIdx.z = 0; // expected-error {{no setter defined for property 'z'}}
out[i++] = blockIdx.x;
blockIdx.x = 0; // expected-error {{no setter defined for property 'x'}}
out[i++] = blockIdx.y;
blockIdx.y = 0; // expected-error {{no setter defined for property 'y'}}
out[i++] = blockIdx.z;
blockIdx.z = 0; // expected-error {{no setter defined for property 'z'}}
out[i++] = blockDim.x;
blockDim.x = 0; // expected-error {{no setter defined for property 'x'}}
out[i++] = blockDim.y;
blockDim.y = 0; // expected-error {{no setter defined for property 'y'}}
out[i++] = blockDim.z;
blockDim.z = 0; // expected-error {{no setter defined for property 'z'}}
out[i++] = gridDim.x;
gridDim.x = 0; // expected-error {{no setter defined for property 'x'}}
out[i++] = gridDim.y;
gridDim.y = 0; // expected-error {{no setter defined for property 'y'}}
out[i++] = gridDim.z;
gridDim.z = 0; // expected-error {{no setter defined for property 'z'}}
out[i++] = warpSize;
warpSize = 0; // expected-error {{cannot assign to variable 'warpSize' with const-qualified type 'const int'}}
// expected-note@__clang_cuda_builtin_vars.h:* {{variable 'warpSize' declared const here}}
// Make sure we can't construct or assign to the special variables.
__cuda_builtin_threadIdx_t x; // expected-error {{call to deleted constructor of '__cuda_builtin_threadIdx_t'}}
__cuda_builtin_threadIdx_t y = threadIdx; // expected-error {{call to deleted constructor of '__cuda_builtin_threadIdx_t'}}
threadIdx = threadIdx; // expected-error {{overload resolution selected deleted operator '='}}
void *ptr = &threadIdx; // expected-error {{overload resolution selected deleted operator '&'}}
// Following line should've caused an error as one is not allowed to
// take address of a built-in variable in CUDA. Alas there's no way
// to prevent getting address of a 'const int', so the line
// currently compiles without errors or warnings.
const void *wsptr = &warpSize;
}
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