8428c75da1
Currently clang treats host var address as constant in device compilation, which causes const vars initialized with host var address promoted to device variables incorrectly and results in undefined symbols. This patch fixes that. Reviewed by: Artem Belevich Differential Revision: https://reviews.llvm.org/D118153 Fixes: SWDEV-309881 Change-Id: I0a69357063c6f8539ef259c96c250d04615f4473
55 lines
1.8 KiB
Plaintext
55 lines
1.8 KiB
Plaintext
// REQUIRES: amdgpu-registered-target
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// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fcuda-is-device -x hip %s \
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// RUN: -emit-llvm -o - | FileCheck -check-prefix=DEV %s
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x hip %s \
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// RUN: -emit-llvm -o - | FileCheck -check-prefix=HOST %s
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// Negative tests.
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// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fcuda-is-device -x hip %s \
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// RUN: -emit-llvm -o - | FileCheck -check-prefix=DEV-NEG %s
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#include "Inputs/cuda.h"
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// Test const var initialized with address of a const var.
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// Both are promoted to device side.
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// DEV-DAG: @_ZN5Test1L1aE = internal addrspace(4) constant i32 1
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// DEV-DAG: @_ZN5Test11B2p1E = addrspace(4) externally_initialized constant i32* addrspacecast (i32 addrspace(4)* @_ZN5Test1L1aE to i32*)
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// DEV-DAG: @_ZN5Test11B2p2E = addrspace(4) externally_initialized constant i32* addrspacecast (i32 addrspace(4)* @_ZN5Test1L1aE to i32*)
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// DEV-DAG: @_ZN5Test12b2E = addrspace(1) externally_initialized global i32 1
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// HOST-DAG: @_ZN5Test1L1aE = internal constant i32 1
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// HOST-DAG: @_ZN5Test11B2p1E = constant i32* @_ZN5Test1L1aE
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// HOST-DAG: @_ZN5Test11B2p2E = internal constant i32* undef
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// HOST-DAG: @_ZN5Test12b1E = global i32 1
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// HOST-DAG: @_ZN5Test12b2E = internal global i32 undef
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namespace Test1 {
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const int a = 1;
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struct B {
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static const int *const p1;
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static __device__ const int *const p2;
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};
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const int *const B::p1 = &a;
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__device__ const int *const B::p2 = &a;
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int b1 = B::p1 == B::p2;
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__device__ int b2 = B::p1 == B::p2;
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}
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// Test const var initialized with address of a non-cost var.
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// Neither is promoted to device side.
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// DEV-NEG-NOT: @_ZN5Test2L1aE
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// DEV-NEG-NOT: @_ZN5Test21B1pE
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// HOST-DAG: @_ZN5Test21aE = global i32 1
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// HOST-DAG: @_ZN5Test21B1pE = constant i32* @_ZN5Test21aE
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namespace Test2 {
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int a = 1;
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struct B {
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static int *const p;
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};
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int *const B::p = &a;
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}
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