| // RUN: echo "GPU binary would be here" > %t |
| |
| // RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm %s \ |
| // RUN: -fcuda-include-gpubinary %t -o - -x hip\ |
| // RUN: | FileCheck %s |
| |
| #include "Inputs/cuda.h" |
| |
| // Kernel handles |
| |
| // CHECK: @[[HCKERN:ckernel]] = constant void ()* @__device_stub__ckernel, align 8 |
| // CHECK: @[[HNSKERN:_ZN2ns8nskernelEv]] = constant void ()* @_ZN2ns23__device_stub__nskernelEv, align 8 |
| // CHECK: @[[HTKERN:_Z10kernelfuncIiEvv]] = linkonce_odr constant void ()* @_Z25__device_stub__kernelfuncIiEvv, align 8 |
| // CHECK: @[[HDKERN:_Z11kernel_declv]] = external constant void ()*, align 8 |
| |
| extern "C" __global__ void ckernel() {} |
| |
| namespace ns { |
| __global__ void nskernel() {} |
| } // namespace ns |
| |
| template<class T> |
| __global__ void kernelfunc() {} |
| |
| __global__ void kernel_decl(); |
| |
| void (*kernel_ptr)(); |
| void *void_ptr; |
| |
| void launch(void *kern); |
| |
| // Device side kernel names |
| |
| // CHECK: @[[CKERN:[0-9]*]] = {{.*}} c"ckernel\00" |
| // CHECK: @[[NSKERN:[0-9]*]] = {{.*}} c"_ZN2ns8nskernelEv\00" |
| // CHECK: @[[TKERN:[0-9]*]] = {{.*}} c"_Z10kernelfuncIiEvv\00" |
| |
| // Non-template kernel stub functions |
| |
| // CHECK: define{{.*}}@[[CSTUB:__device_stub__ckernel]] |
| // CHECK: call{{.*}}@hipLaunchByPtr{{.*}}@[[HCKERN]] |
| // CHECK: define{{.*}}@[[NSSTUB:_ZN2ns23__device_stub__nskernelEv]] |
| // CHECK: call{{.*}}@hipLaunchByPtr{{.*}}@[[HNSKERN]] |
| |
| |
| // Check kernel stub is used for triple chevron |
| |
| // CHECK-LABEL: define{{.*}}@_Z4fun1v() |
| // CHECK: call void @[[CSTUB]]() |
| // CHECK: call void @[[NSSTUB]]() |
| // CHECK: call void @[[TSTUB:_Z25__device_stub__kernelfuncIiEvv]]() |
| // CHECK: call void @[[DSTUB:_Z26__device_stub__kernel_declv]]() |
| |
| void fun1(void) { |
| ckernel<<<1, 1>>>(); |
| ns::nskernel<<<1, 1>>>(); |
| kernelfunc<int><<<1, 1>>>(); |
| kernel_decl<<<1, 1>>>(); |
| } |
| |
| // Template kernel stub functions |
| |
| // CHECK: define{{.*}}@[[TSTUB]] |
| // CHECK: call{{.*}}@hipLaunchByPtr{{.*}}@[[HTKERN]] |
| |
| // Check declaration of stub function for external kernel. |
| |
| // CHECK: declare{{.*}}@[[DSTUB]] |
| |
| // Check kernel handle is used for passing the kernel as a function pointer |
| |
| // CHECK-LABEL: define{{.*}}@_Z4fun2v() |
| // CHECK: call void @_Z6launchPv({{.*}}[[HCKERN]] |
| // CHECK: call void @_Z6launchPv({{.*}}[[HNSKERN]] |
| // CHECK: call void @_Z6launchPv({{.*}}[[HTKERN]] |
| // CHECK: call void @_Z6launchPv({{.*}}[[HDKERN]] |
| void fun2() { |
| launch((void *)ckernel); |
| launch((void *)ns::nskernel); |
| launch((void *)kernelfunc<int>); |
| launch((void *)kernel_decl); |
| } |
| |
| // Check kernel handle is used for assigning a kernel to a function pointer |
| |
| // CHECK-LABEL: define{{.*}}@_Z4fun3v() |
| // CHECK: store void ()* bitcast (void ()** @[[HCKERN]] to void ()*), void ()** @kernel_ptr, align 8 |
| // CHECK: store void ()* bitcast (void ()** @[[HCKERN]] to void ()*), void ()** @kernel_ptr, align 8 |
| // CHECK: store i8* bitcast (void ()** @[[HCKERN]] to i8*), i8** @void_ptr, align 8 |
| // CHECK: store i8* bitcast (void ()** @[[HCKERN]] to i8*), i8** @void_ptr, align 8 |
| void fun3() { |
| kernel_ptr = ckernel; |
| kernel_ptr = &ckernel; |
| void_ptr = (void *)ckernel; |
| void_ptr = (void *)&ckernel; |
| } |
| |
| // Check kernel stub is loaded from kernel handle when function pointer is |
| // used with triple chevron |
| |
| // CHECK-LABEL: define{{.*}}@_Z4fun4v() |
| // CHECK: store void ()* bitcast (void ()** @[[HCKERN]] to void ()*), void ()** @kernel_ptr |
| // CHECK: call i32 @_Z16hipConfigureCall4dim3S_mP9hipStream |
| // CHECK: %[[HANDLE:.*]] = load void ()*, void ()** @kernel_ptr, align 8 |
| // CHECK: %[[CAST:.*]] = bitcast void ()* %[[HANDLE]] to void ()** |
| // CHECK: %[[STUB:.*]] = load void ()*, void ()** %[[CAST]], align 8 |
| // CHECK: call void %[[STUB]]() |
| void fun4() { |
| kernel_ptr = ckernel; |
| kernel_ptr<<<1,1>>>(); |
| } |
| |
| // Check kernel handle is passed to a function |
| |
| // CHECK-LABEL: define{{.*}}@_Z4fun5v() |
| // CHECK: store void ()* bitcast (void ()** @[[HCKERN]] to void ()*), void ()** @kernel_ptr |
| // CHECK: %[[HANDLE:.*]] = load void ()*, void ()** @kernel_ptr, align 8 |
| // CHECK: %[[CAST:.*]] = bitcast void ()* %[[HANDLE]] to i8* |
| // CHECK: call void @_Z6launchPv(i8* %[[CAST]]) |
| void fun5() { |
| kernel_ptr = ckernel; |
| launch((void *)kernel_ptr); |
| } |
| |
| // CHECK-LABEL: define{{.*}}@__hip_register_globals |
| // CHECK: call{{.*}}@__hipRegisterFunction{{.*}}@[[HCKERN]]{{.*}}@[[CKERN]] |
| // CHECK: call{{.*}}@__hipRegisterFunction{{.*}}@[[HNSKERN]]{{.*}}@[[NSKERN]] |
| // CHECK: call{{.*}}@__hipRegisterFunction{{.*}}@[[HTKERN]]{{.*}}@[[TKERN]] |
| // CHECK-NOT: call{{.*}}@__hipRegisterFunction{{.*}}@[[HDKERN]]{{.*}}@{{[0-9]*}} |