b008ea304d
For -fgpu-rdc, shadow variables should not be internalized, otherwise they cannot be accessed by other TUs. This is necessary because the shadow variable of external device variables are always emitted as undefined symbols, which need to resolve to a global symbols. Managed variables need to be emitted as undefined symbols in device compilations. Reviewed by: Artem Belevich Differential Revision: https://reviews.llvm.org/D95901
66 lines
2.6 KiB
Plaintext
66 lines
2.6 KiB
Plaintext
// RUN: %clang_cc1 -triple nvptx -fcuda-is-device \
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// RUN: -emit-llvm -o - -x hip %s \
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// RUN: | FileCheck -check-prefixes=DEV,NORDC %s
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// RUN: %clang_cc1 -triple nvptx -fcuda-is-device \
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// RUN: -fgpu-rdc -emit-llvm -o - -x hip %s \
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// RUN: | FileCheck -check-prefixes=DEV,RDC %s
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// RUN: %clang_cc1 -triple nvptx \
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// RUN: -emit-llvm -o - -x hip %s \
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// RUN: | FileCheck -check-prefixes=HOST,NORDC-H %s
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// RUN: %clang_cc1 -triple nvptx \
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// RUN: -fgpu-rdc -emit-llvm -o - -x hip %s \
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// RUN: | FileCheck -check-prefixes=HOST,RDC-H %s
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#include "Inputs/cuda.h"
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// DEV-DAG: @v1 = dso_local addrspace(1) externally_initialized global i32 0
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// NORDC-H-DAG: @v1 = internal global i32 undef
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// RDC-H-DAG: @v1 = dso_local global i32 undef
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__device__ int v1;
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// DEV-DAG: @v2 = dso_local addrspace(4) externally_initialized global i32 0
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// NORDC-H-DAG: @v2 = internal global i32 undef
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// RDC-H-DAG: @v2 = dso_local global i32 undef
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__constant__ int v2;
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// DEV-DAG: @v3 = external addrspace(1) externally_initialized global i32
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// NORDC-H-DAG: @v3 = internal global i32 0
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// RDC-H-DAG: @v3 = dso_local global i32 0
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__managed__ int v3;
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// DEV-DAG: @ev1 = external addrspace(1) global i32
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// HOST-DAG: @ev1 = external global i32
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extern __device__ int ev1;
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// DEV-DAG: @ev2 = external addrspace(4) global i32
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// HOST-DAG: @ev2 = external global i32
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extern __constant__ int ev2;
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// DEV-DAG: @ev3 = external addrspace(1) global i32
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// HOST-DAG: @ev3 = external global i32
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extern __managed__ int ev3;
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// NORDC-DAG: @_ZL3sv1 = dso_local addrspace(1) externally_initialized global i32 0
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// RDC-DAG: @_ZL3sv1 = internal addrspace(1) global i32 0
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// HOST-DAG: @_ZL3sv1 = internal global i32 undef
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static __device__ int sv1;
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// NORDC-DAG: @_ZL3sv2 = dso_local addrspace(4) externally_initialized global i32 0
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// RDC-DAG: @_ZL3sv2 = internal addrspace(4) global i32 0
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// HOST-DAG: @_ZL3sv2 = internal global i32 undef
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static __constant__ int sv2;
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// DEV-DAG: @_ZL3sv3 = external addrspace(1) externally_initialized global i32
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// HOST-DAG: @_ZL3sv3 = internal global i32 0
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static __managed__ int sv3;
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__device__ __host__ int work(int *x);
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__device__ __host__ int fun1() {
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return work(&ev1) + work(&ev2) + work(&ev3) + work(&sv1) + work(&sv2) + work(&sv3);
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}
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// HOST: hipRegisterVar({{.*}}@v1
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// HOST: hipRegisterVar({{.*}}@v2
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// HOST: hipRegisterManagedVar({{.*}}@v3
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// HOST-NOT: hipRegisterVar({{.*}}@ev1
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// HOST-NOT: hipRegisterVar({{.*}}@ev2
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// HOST-NOT: hipRegisterManagedVar({{.*}}@ev3
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// HOST: hipRegisterVar({{.*}}@_ZL3sv1
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// HOST: hipRegisterVar({{.*}}@_ZL3sv2
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// HOST: hipRegisterManagedVar({{.*}}@_ZL3sv3
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