================
@@ -194,3 +204,87 @@ __global__ void non_cexpr_waves_per_eu_2() {}
// expected-error@+1{{'amdgpu_waves_per_eu' attribute requires parameter 1 to
be an integer constant}}
__attribute__((amdgpu_waves_per_eu(2, ipow2(2))))
__global__ void non_cexpr_waves_per_eu_2_4() {}
+
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute requires exactly
3 arguments}}
+__attribute__((amdgpu_max_num_work_groups(32)))
+__global__ void max_num_work_groups_32() {}
+
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute requires exactly
3 arguments}}
+__attribute__((amdgpu_max_num_work_groups(32, 1)))
+__global__ void max_num_work_groups_32_1() {}
+
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute requires exactly
3 arguments}}
+__attribute__((amdgpu_max_num_work_groups(32, 1, 1, 1)))
+__global__ void max_num_work_groups_32_1_1_1() {}
+
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute requires
parameter 0 to be an integer constant}}
+__attribute__((amdgpu_max_num_work_groups(ipow2(5), 1, 1)))
+__global__ void max_num_work_groups_32_1_1_non_int_arg0() {}
+
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute requires
parameter 1 to be an integer constant}}
+__attribute__((amdgpu_max_num_work_groups(32, "1", 1)))
+__global__ void max_num_work_groups_32_1_1_non_int_arg1() {}
+
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute requires a
non-negative integral compile time constant expression}}
+__attribute__((amdgpu_max_num_work_groups(-32, 1, 1)))
+__global__ void max_num_work_groups_32_1_1_neg_int_arg0() {}
+
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute requires a
non-negative integral compile time constant expression}}
+__attribute__((amdgpu_max_num_work_groups(32, -1, 1)))
+__global__ void max_num_work_groups_32_1_1_neg_int_arg1() {}
+
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute requires a
non-negative integral compile time constant expression}}
+__attribute__((amdgpu_max_num_work_groups(32, 1, -1)))
+__global__ void max_num_work_groups_32_1_1_neg_int_arg2() {}
+
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute must be greater
than 0}}
+__attribute__((amdgpu_max_num_work_groups(0, 1, 1)))
+__global__ void max_num_work_groups_0_1_1() {}
+
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute must be greater
than 0}}
+__attribute__((amdgpu_max_num_work_groups(32, 0, 1)))
+__global__ void max_num_work_groups_32_0_1() {}
+
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute must be greater
than 0}}
+__attribute__((amdgpu_max_num_work_groups(32, 1, 0)))
+__global__ void max_num_work_groups_32_1_0() {}
+
+
+int num_wg_x = 32;
+int num_wg_y = 1;
+int num_wg_z = 1;
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute requires
parameter 0 to be an integer constant}}
+__attribute__((amdgpu_max_num_work_groups(num_wg_x, 1, 1)))
+__global__ void max_num_work_groups_32_1_1_non_const_arg0() {}
+
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute requires
parameter 1 to be an integer constant}}
+__attribute__((amdgpu_max_num_work_groups(32, num_wg_y, 1)))
+__global__ void max_num_work_groups_32_1_1_non_const_arg1() {}
+
+// expected-error@+1{{'amdgpu_max_num_work_groups' attribute requires
parameter 2 to be an integer constant}}
+__attribute__((amdgpu_max_num_work_groups(32, 1, num_wg_z)))
+__global__ void max_num_work_groups_32_1_1_non_const_arg2() {}
+
+const int c_num_wg_x = 32;
+__attribute__((amdgpu_max_num_work_groups(c_num_wg_x, 1, 1)))
+__global__ void max_num_work_groups_32_1_1_const_arg0() {}
+
+// expected-error@+2{{'amdgpu_max_num_work_groups' attribute requires
parameter 0 to be an integer constant}}
----------------
erichkeane wrote:
This isn't a good diagnostic, `a` IS an integer constant! All of these are
actually integer constants and likely should work.
https://github.com/llvm/llvm-project/pull/79035
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