// RUN: %clang_cc1 %s -triple nvptx-unknown-unknown -fcuda-is-device -emit-llvm -o - | FileCheck %s // RUN: %clang_cc1 %s -triple nvptx-unknown-unknown -target-cpu sm_90 -DUSE_MAX_BLOCKS -fcuda-is-device -emit-llvm -o - | FileCheck -check-prefix=CHECK_MAX_BLOCKS %s #include "Inputs/cuda.h" #define MAX_THREADS_PER_BLOCK 256 #define MIN_BLOCKS_PER_MP 2 #ifdef USE_MAX_BLOCKS #define MAX_BLOCKS_PER_MP 4 #endif // CHECK: @Kernel1() #[[ATTR0:[0-9]+]] // CHECK: @Kernel2() #[[ATTR1:[0-9]+]] // CHECK: @{{.*}}Kernel3{{.*}}() #[[ATTR1]] // CHECK: @{{.*}}Kernel4{{.*}}() #[[ATTR0]] // CHECK: @{{.*}}Kernel5{{.*}}() #[[ATTR2:[0-9]+]] // CHECK: @{{.*}}Kernel6{{.*}}() #[[ATTR3:[0-9]+]] // CHECK: @{{.*}}Kernel7{{.*}}() #[[ATTR1]] // CHECK: @{{.*}}Kernel8{{.*}}() #[[ATTR4:[0-9]+]] // CHECK-DAG: attributes #[[ATTR0]] = {{{.*}} "nvvm.maxntid"="256" "nvvm.minctasm"="2" {{.*}}} // CHECK-DAG: attributes #[[ATTR1]] = {{{.*}} "nvvm.maxntid"="256" {{.*}}} // CHECK-DAG: attributes #[[ATTR2]] = {{{.*}} "nvvm.maxntid"="356" "nvvm.minctasm"="258" {{.*}}} // CHECK-DAG: attributes #[[ATTR3]] = {{{.*}} "nvvm.minctasm"="2" {{.*}}} // CHECK-DAG: attributes #[[ATTR4]] = {{{.*}} "nvvm.maxntid"="100" "nvvm.minctasm"="12" {{.*}}} // CHECK_MAX_BLOCKS: @Kernel1_sm_90() #[[ATTR0:[0-9]+]] // CHECK_MAX_BLOCKS: @{{.*}}Kernel4_sm_90{{.*}} #[[ATTR0]] // CHECK_MAX_BLOCKS: @{{.*}}Kernel5_sm_90{{.*}} #[[ATTR1:[0-9]+]] // CHECK_MAX_BLOCKS: @{{.*}}Kernel7_sm_90{{.*}} #[[ATTR2:[0-9]+]] // CHECK_MAX_BLOCKS: @{{.*}}Kernel8_sm_90{{.*}} #[[ATTR3:[0-9]+]] // CHECK_MAX_BLOCKS-DAG: attributes #[[ATTR0]] = {{{.*}} "nvvm.maxclusterrank"="4" "nvvm.maxntid"="256" "nvvm.minctasm"="2" {{.*}}} // CHECK_MAX_BLOCKS-DAG: attributes #[[ATTR1]] = {{{.*}} "nvvm.maxclusterrank"="260" "nvvm.maxntid"="356" "nvvm.minctasm"="258" {{.*}}} // CHECK_MAX_BLOCKS-DAG: attributes #[[ATTR2]] = {{{.*}} "nvvm.maxntid"="256" {{.*}}} // CHECK_MAX_BLOCKS-DAG: attributes #[[ATTR3]] = {{{.*}} "nvvm.maxclusterrank"="14" "nvvm.maxntid"="100" "nvvm.minctasm"="12" {{.*}}} // Test both max threads per block and Min cta per sm. extern "C" { __global__ void __launch_bounds__( MAX_THREADS_PER_BLOCK, MIN_BLOCKS_PER_MP ) Kernel1() { } } #ifdef USE_MAX_BLOCKS // Test max threads per block and min/max cta per sm. extern "C" { __global__ void __launch_bounds__( MAX_THREADS_PER_BLOCK, MIN_BLOCKS_PER_MP, MAX_BLOCKS_PER_MP ) Kernel1_sm_90() { } } #endif // USE_MAX_BLOCKS // Test only max threads per block. Min cta per sm defaults to 0, and // CodeGen doesn't output a zero value for minctasm. extern "C" { __global__ void __launch_bounds__( MAX_THREADS_PER_BLOCK ) Kernel2() { } } template __global__ void __launch_bounds__(max_threads_per_block) Kernel3() { } template __global__ void Kernel3(); template __global__ void __launch_bounds__(max_threads_per_block, min_blocks_per_mp) Kernel4() { } template __global__ void Kernel4(); #ifdef USE_MAX_BLOCKS template __global__ void __launch_bounds__(max_threads_per_block, min_blocks_per_mp, max_blocks_per_mp) Kernel4_sm_90() { } template __global__ void Kernel4_sm_90(); #endif //USE_MAX_BLOCKS const int constint = 100; template __global__ void __launch_bounds__(max_threads_per_block + constint, min_blocks_per_mp + max_threads_per_block) Kernel5() { } template __global__ void Kernel5(); #ifdef USE_MAX_BLOCKS template __global__ void __launch_bounds__(max_threads_per_block + constint, min_blocks_per_mp + max_threads_per_block, max_blocks_per_mp + max_threads_per_block) Kernel5_sm_90() { } template __global__ void Kernel5_sm_90(); #endif //USE_MAX_BLOCKS // Make sure we don't emit negative launch bounds values. __global__ void __launch_bounds__( -MAX_THREADS_PER_BLOCK, MIN_BLOCKS_PER_MP ) Kernel6() { } __global__ void __launch_bounds__( MAX_THREADS_PER_BLOCK, -MIN_BLOCKS_PER_MP ) Kernel7() { } #ifdef USE_MAX_BLOCKS __global__ void __launch_bounds__( MAX_THREADS_PER_BLOCK, -MIN_BLOCKS_PER_MP, -MAX_BLOCKS_PER_MP ) Kernel7_sm_90() { } #endif // USE_MAX_BLOCKS const char constchar = 12; __global__ void __launch_bounds__(constint, constchar) Kernel8() {} #ifdef USE_MAX_BLOCKS const char constchar_2 = 14; __global__ void __launch_bounds__(constint, constchar, constchar_2) Kernel8_sm_90() {} #endif // USE_MAX_BLOCKS