forked from OSchip/llvm-project
82 lines
2.3 KiB
Plaintext
82 lines
2.3 KiB
Plaintext
// RUN: %clang_cc1 %s -triple nvptx-unknown-unknown -fcuda-is-device -emit-llvm -o - | FileCheck %s
|
|
|
|
#include "Inputs/cuda.h"
|
|
|
|
#define MAX_THREADS_PER_BLOCK 256
|
|
#define MIN_BLOCKS_PER_MP 2
|
|
|
|
// 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()
|
|
{
|
|
}
|
|
}
|
|
|
|
// CHECK: !{{[0-9]+}} = !{void ()* @Kernel1, !"maxntidx", i32 256}
|
|
// CHECK: !{{[0-9]+}} = !{void ()* @Kernel1, !"minctasm", i32 2}
|
|
|
|
// 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()
|
|
{
|
|
}
|
|
}
|
|
|
|
// CHECK: !{{[0-9]+}} = !{void ()* @Kernel2, !"maxntidx", i32 256}
|
|
|
|
template <int max_threads_per_block>
|
|
__global__ void
|
|
__launch_bounds__(max_threads_per_block)
|
|
Kernel3()
|
|
{
|
|
}
|
|
|
|
template void Kernel3<MAX_THREADS_PER_BLOCK>();
|
|
// CHECK: !{{[0-9]+}} = !{void ()* @{{.*}}Kernel3{{.*}}, !"maxntidx", i32 256}
|
|
|
|
template <int max_threads_per_block, int min_blocks_per_mp>
|
|
__global__ void
|
|
__launch_bounds__(max_threads_per_block, min_blocks_per_mp)
|
|
Kernel4()
|
|
{
|
|
}
|
|
template void Kernel4<MAX_THREADS_PER_BLOCK, MIN_BLOCKS_PER_MP>();
|
|
|
|
// CHECK: !{{[0-9]+}} = !{void ()* @{{.*}}Kernel4{{.*}}, !"maxntidx", i32 256}
|
|
// CHECK: !{{[0-9]+}} = !{void ()* @{{.*}}Kernel4{{.*}}, !"minctasm", i32 2}
|
|
|
|
const int constint = 100;
|
|
template <int max_threads_per_block, int min_blocks_per_mp>
|
|
__global__ void
|
|
__launch_bounds__(max_threads_per_block + constint,
|
|
min_blocks_per_mp + max_threads_per_block)
|
|
Kernel5()
|
|
{
|
|
}
|
|
template void Kernel5<MAX_THREADS_PER_BLOCK, MIN_BLOCKS_PER_MP>();
|
|
|
|
// CHECK: !{{[0-9]+}} = !{void ()* @{{.*}}Kernel5{{.*}}, !"maxntidx", i32 356}
|
|
// CHECK: !{{[0-9]+}} = !{void ()* @{{.*}}Kernel5{{.*}}, !"minctasm", i32 258}
|
|
|
|
// Make sure we don't emit negative launch bounds values.
|
|
__global__ void
|
|
__launch_bounds__( -MAX_THREADS_PER_BLOCK, MIN_BLOCKS_PER_MP )
|
|
Kernel6()
|
|
{
|
|
}
|
|
// CHECK-NOT: !{{[0-9]+}} = !{void ()* @{{.*}}Kernel6{{.*}}, !"maxntidx",
|
|
// CHECK: !{{[0-9]+}} = !{void ()* @{{.*}}Kernel6{{.*}}, !"minctasm",
|
|
|
|
__global__ void
|
|
__launch_bounds__( MAX_THREADS_PER_BLOCK, -MIN_BLOCKS_PER_MP )
|
|
Kernel7()
|
|
{
|
|
}
|
|
// CHECK: !{{[0-9]+}} = !{void ()* @{{.*}}Kernel7{{.*}}, !"maxntidx",
|
|
// CHECK-NOT: !{{[0-9]+}} = !{void ()* @{{.*}}Kernel7{{.*}}, !"minctasm",
|