teak-llvm/clang/test/CodeGenCUDA/amdgpu-visibility.cu
Michael Liao 0a220de9e9 [HIP] Fix visibility for 'extern' device variables.
Summary:
- Fix a bug which misses the change for a variable to be set with
  target-specific attributes.

Reviewers: yaxunl

Subscribers: jvesely, nhaehnle, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D63020
2019-11-05 14:19:32 -05:00

32 lines
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// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fcuda-is-device -fapply-global-visibility-to-externs -fvisibility default -emit-llvm -o - %s | FileCheck --check-prefix=CHECK-DEFAULT %s
// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fcuda-is-device -fapply-global-visibility-to-externs -fvisibility protected -emit-llvm -o - %s | FileCheck --check-prefix=CHECK-PROTECTED %s
// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fcuda-is-device -fapply-global-visibility-to-externs -fvisibility hidden -emit-llvm -o - %s | FileCheck --check-prefix=CHECK-HIDDEN %s
#include "Inputs/cuda.h"
// CHECK-DEFAULT: @c = addrspace(4) externally_initialized global
// CHECK-DEFAULT: @g = addrspace(1) externally_initialized global
// CHECK-PROTECTED: @c = protected addrspace(4) externally_initialized global
// CHECK-PROTECTED: @g = protected addrspace(1) externally_initialized global
// CHECK-HIDDEN: @c = protected addrspace(4) externally_initialized global
// CHECK-HIDDEN: @g = protected addrspace(1) externally_initialized global
__constant__ int c;
__device__ int g;
// CHECK-DEFAULT: @e = external addrspace(1) global
// CHECK-PROTECTED: @e = external protected addrspace(1) global
// CHECK-HIDDEN: @e = external protected addrspace(1) global
extern __device__ int e;
// dummy one to hold reference to `e`.
__device__ int f() {
return e;
}
// CHECK-DEFAULT: define amdgpu_kernel void @_Z3foov()
// CHECK-PROTECTED: define protected amdgpu_kernel void @_Z3foov()
// CHECK-HIDDEN: define protected amdgpu_kernel void @_Z3foov()
__global__ void foo() {
g = c;
}