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TheRock/compiler/amd-llvm/clang/test/CodeGenCUDA/bug-kerner-registration-reuse.cu
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derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

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// RUN: echo -n "GPU binary would be here." > %t
// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm %s \
// RUN: -target-sdk-version=11.0 -fcuda-include-gpubinary %t -o - \
// RUN: | FileCheck %s --check-prefixes CUDA
// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm %s -x hip \
// RUN: -fcuda-include-gpubinary %t -o - \
// RUN: | FileCheck %s --check-prefixes HIP
#include "Inputs/cuda.h"
template <typename T>
struct S { T t; };
template <typename T>
static __global__ void Kernel(S<T>) {}
// For some reason it takes three or more instantiations of Kernel to trigger a
// crash during CUDA compilation.
auto x = &Kernel<double>;
auto y = &Kernel<float>;
auto z = &Kernel<int>;
// This triggers HIP-specific code path.
void func (){
Kernel<short><<<1,1>>>({1});
}
// CUDA-LABEL: @__cuda_register_globals(
// CUDA: call i32 @__cudaRegisterFunction(ptr %0, ptr @_ZL21__device_stub__KernelIdEv1SIT_E
// CUDA: call i32 @__cudaRegisterFunction(ptr %0, ptr @_ZL21__device_stub__KernelIfEv1SIT_E
// CUDA: call i32 @__cudaRegisterFunction(ptr %0, ptr @_ZL21__device_stub__KernelIiEv1SIT_E
// CUDA: ret void
// HIP-LABEL: @__hip_register_globals(
// HIP: call i32 @__hipRegisterFunction(ptr %0, ptr @_ZL6KernelIdEv1SIT_E
// HIP: call i32 @__hipRegisterFunction(ptr %0, ptr @_ZL6KernelIfEv1SIT_E
// HIP: call i32 @__hipRegisterFunction(ptr %0, ptr @_ZL6KernelIiEv1SIT_E
// HIP: ret void