| 1 | // RUN: %clang_cc1 -std=c++11 -fcuda-is-device -verify -fsyntax-only -verify-ignore-unexpected=warning -verify-ignore-unexpected=note %s |
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| 2 | // RUN: %clang_cc1 -std=c++11 -verify -fsyntax-only -verify-ignore-unexpected=warning -verify-ignore-unexpected=note %s |
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| 3 | |
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| 4 | #include "Inputs/cuda.h" |
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| 5 | |
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| 6 | __device__ void device_fn() { |
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| 7 | auto f1 = [&] {}; |
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| 8 | f1(); // implicitly __device__ |
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| 9 | |
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| 10 | auto f2 = [&] __device__ {}; |
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| 11 | f2(); |
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| 12 | |
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| 13 | auto f3 = [&] __host__ {}; |
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| 14 | f3(); // expected-error {{no matching function}} |
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| 15 | |
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| 16 | auto f4 = [&] __host__ __device__ {}; |
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| 17 | f4(); |
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| 18 | |
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| 19 | // Now do it all again with '()'s in the lambda declarations: This is a |
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| 20 | // different parse path. |
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| 21 | auto g1 = [&]() {}; |
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| 22 | g1(); // implicitly __device__ |
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| 23 | |
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| 24 | auto g2 = [&]() __device__ {}; |
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| 25 | g2(); |
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| 26 | |
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| 27 | auto g3 = [&]() __host__ {}; |
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| 28 | g3(); // expected-error {{no matching function}} |
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| 29 | |
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| 30 | auto g4 = [&]() __host__ __device__ {}; |
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| 31 | g4(); |
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| 32 | |
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| 33 | // Once more, with the '()'s in a different place. |
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| 34 | auto h1 = [&]() {}; |
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| 35 | h1(); // implicitly __device__ |
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| 36 | |
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| 37 | auto h2 = [&] __device__ () {}; |
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| 38 | h2(); |
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| 39 | |
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| 40 | auto h3 = [&] __host__ () {}; |
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| 41 | h3(); // expected-error {{no matching function}} |
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| 42 | |
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| 43 | auto h4 = [&] __host__ __device__ () {}; |
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| 44 | h4(); |
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| 45 | } |
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| 46 | |
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| 47 | // Behaves identically to device_fn. |
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| 48 | __global__ void kernel_fn() { |
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| 49 | auto f1 = [&] {}; |
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| 50 | f1(); // implicitly __device__ |
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| 51 | |
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| 52 | auto f2 = [&] __device__ {}; |
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| 53 | f2(); |
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| 54 | |
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| 55 | auto f3 = [&] __host__ {}; |
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| 56 | f3(); // expected-error {{no matching function}} |
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| 57 | |
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| 58 | auto f4 = [&] __host__ __device__ {}; |
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| 59 | f4(); |
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| 60 | |
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| 61 | // No need to re-test all the parser contortions we test in the device |
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| 62 | // function. |
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| 63 | } |
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| 64 | |
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| 65 | __host__ void host_fn() { |
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| 66 | auto f1 = [&] {}; |
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| 67 | f1(); // implicitly __host__ (i.e., no magic) |
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| 68 | |
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| 69 | auto f2 = [&] __device__ {}; |
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| 70 | f2(); // expected-error {{no matching function}} |
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| 71 | |
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| 72 | auto f3 = [&] __host__ {}; |
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| 73 | f3(); |
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| 74 | |
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| 75 | auto f4 = [&] __host__ __device__ {}; |
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| 76 | f4(); |
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| 77 | } |
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| 78 | |
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| 79 | __host__ __device__ void hd_fn() { |
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| 80 | auto f1 = [&] {}; |
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| 81 | f1(); // implicitly __host__ __device__ |
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| 82 | |
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| 83 | auto f2 = [&] __device__ {}; |
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| 84 | f2(); |
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| 85 | #ifndef __CUDA_ARCH__ |
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| 86 | // expected-error@-2 {{reference to __device__ function}} |
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| 87 | #endif |
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| 88 | |
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| 89 | auto f3 = [&] __host__ {}; |
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| 90 | f3(); |
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| 91 | #ifdef __CUDA_ARCH__ |
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| 92 | // expected-error@-2 {{reference to __host__ function}} |
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| 93 | #endif |
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| 94 | |
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| 95 | auto f4 = [&] __host__ __device__ {}; |
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| 96 | f4(); |
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| 97 | } |
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| 98 | |
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| 99 | // The special treatment above only applies to lambdas. |
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| 100 | __device__ void foo() { |
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| 101 | struct X { |
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| 102 | void foo() {} |
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| 103 | }; |
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| 104 | X x; |
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| 105 | x.foo(); // expected-error {{reference to __host__ function 'foo' in __device__ function}} |
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| 106 | } |
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| 107 | |
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