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