171da443d5
This issue is an oversight in D108621. Literals in HIP are emitted as global constant variables with default address space which maps to Generic address space for HIPSPV. In SPIR-V such variables translate to OpVariable instructions with Generic storage class which are not legal. Fix by mapping literals to CrossWorkGroup address space. The literals are not mapped to UniformConstant because the “flat” pointers in HIP may reference them and “flat” pointers are modeled as Generic pointers in SPIR-V. In SPIR-V/OpenCL UniformConstant pointers may not be casted to Generic. Patch by: Henry Linjamäki Reviewed by: Yaxun Liu Differential Revision: https://reviews.llvm.org/D118876
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
// RUN: %clang_cc1 -triple spirv64 -x hip -emit-llvm -fcuda-is-device \
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// RUN: -o - %s | FileCheck %s
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#define __device__ __attribute__((device))
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#define __shared__ __attribute__((shared))
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#define __constant__ __attribute__((constant))
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// CHECK: %struct.foo_t = type { i32, i32 addrspace(4)* }
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// CHECK: @d ={{.*}} addrspace(1) externally_initialized global
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__device__ int d;
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// CHECK: @c ={{.*}} addrspace(1) externally_initialized global
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__constant__ int c;
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// CHECK: @s ={{.*}} addrspace(3) global
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__shared__ int s;
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// CHECK: @foo ={{.*}} addrspace(1) externally_initialized global %struct.foo_t
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__device__ struct foo_t {
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int i;
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int* pi;
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} foo;
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// Check literals are placed in address space 1 (CrossWorkGroup/__global).
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// CHECK: @.str ={{.*}} unnamed_addr addrspace(1) constant
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// CHECK: define{{.*}} spir_func noundef i32 addrspace(4)* @_Z3barPi(i32 addrspace(4)*
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__device__ int* bar(int *x) {
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return x;
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}
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// CHECK: define{{.*}} spir_func noundef i32 addrspace(4)* @_Z5baz_dv()
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__device__ int* baz_d() {
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// CHECK: ret i32 addrspace(4)* addrspacecast (i32 addrspace(1)* @d to i32 addrspace(4)*
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return &d;
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}
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// CHECK: define{{.*}} spir_func noundef i32 addrspace(4)* @_Z5baz_cv()
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__device__ int* baz_c() {
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// CHECK: ret i32 addrspace(4)* addrspacecast (i32 addrspace(1)* @c to i32 addrspace(4)*
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return &c;
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}
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// CHECK: define{{.*}} spir_func noundef i32 addrspace(4)* @_Z5baz_sv()
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__device__ int* baz_s() {
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// CHECK: ret i32 addrspace(4)* addrspacecast (i32 addrspace(3)* @s to i32 addrspace(4)*
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return &s;
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}
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// CHECK: define{{.*}} spir_func noundef i8 addrspace(4)* @_Z3quzv()
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__device__ const char* quz() {
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return "abc";
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}
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