// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa \
// RUN:     -fcuda-is-device -emit-llvm -o - -x hip %s \
// RUN:     | FileCheck -check-prefixes=CHECK,DEFAULT %s
// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa --gpu-max-threads-per-block=1024 \
// RUN:     -fcuda-is-device -emit-llvm -o - -x hip %s \
// RUN:     | FileCheck -check-prefixes=CHECK,MAX1024 %s
// RUN: %clang_cc1 -triple nvptx \
// RUN:     -fcuda-is-device -emit-llvm -o - %s | FileCheck %s \
// RUN:     -check-prefix=NAMD
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm \
// RUN:     -verify -o - -x hip %s | FileCheck -check-prefix=NAMD %s

#include "Inputs/cuda.h"

__global__ void flat_work_group_size_default() {
// CHECK: define{{.*}} amdgpu_kernel void @_Z28flat_work_group_size_defaultv() [[FLAT_WORK_GROUP_SIZE_DEFAULT:#[0-9]+]]
}

__attribute__((amdgpu_flat_work_group_size(32, 64))) // expected-no-diagnostics
__global__ void flat_work_group_size_32_64() {
// CHECK: define{{.*}} amdgpu_kernel void @_Z26flat_work_group_size_32_64v() [[FLAT_WORK_GROUP_SIZE_32_64:#[0-9]+]]
}
__attribute__((amdgpu_waves_per_eu(2))) // expected-no-diagnostics
__global__ void waves_per_eu_2() {
// CHECK: define{{.*}} amdgpu_kernel void @_Z14waves_per_eu_2v() [[WAVES_PER_EU_2:#[0-9]+]]
}
__attribute__((amdgpu_num_sgpr(32))) // expected-no-diagnostics
__global__ void num_sgpr_32() {
// CHECK: define{{.*}} amdgpu_kernel void @_Z11num_sgpr_32v() [[NUM_SGPR_32:#[0-9]+]]
}
__attribute__((amdgpu_num_vgpr(64))) // expected-no-diagnostics
__global__ void num_vgpr_64() {
// CHECK: define{{.*}} amdgpu_kernel void @_Z11num_vgpr_64v() [[NUM_VGPR_64:#[0-9]+]]
}

// Make sure this is silently accepted on other targets.
// NAMD-NOT: "amdgpu-flat-work-group-size"
// NAMD-NOT: "amdgpu-waves-per-eu"
// NAMD-NOT: "amdgpu-num-vgpr"
// NAMD-NOT: "amdgpu-num-sgpr"

// DEFAULT-DAG: attributes [[FLAT_WORK_GROUP_SIZE_DEFAULT]] = {{.*}}"amdgpu-flat-work-group-size"="1,256"{{.*}}"uniform-work-group-size"="true"
// MAX1024-DAG: attributes [[FLAT_WORK_GROUP_SIZE_DEFAULT]] = {{.*}}"amdgpu-flat-work-group-size"="1,1024"
// CHECK-DAG: attributes [[FLAT_WORK_GROUP_SIZE_32_64]] = {{.*}}"amdgpu-flat-work-group-size"="32,64"
// CHECK-DAG: attributes [[WAVES_PER_EU_2]] = {{.*}}"amdgpu-waves-per-eu"="2"
// CHECK-DAG: attributes [[NUM_SGPR_32]] = {{.*}}"amdgpu-num-sgpr"="32"
// CHECK-DAG: attributes [[NUM_VGPR_64]] = {{.*}}"amdgpu-num-vgpr"="64"