| // REQUIRES: x86-registered-target |
| // REQUIRES: amdgpu-registered-target |
| |
| // RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fcuda-is-device -emit-llvm -x hip %s -o - | FileCheck --check-prefixes=COMMON,CHECK %s |
| // RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fcuda-is-device -emit-llvm -x hip %s -disable-O0-optnone -o - | opt -S -O2 | FileCheck %s --check-prefixes=COMMON,OPT |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -x hip %s -o - | FileCheck -check-prefix=HOST %s |
| |
| #include "Inputs/cuda.h" |
| |
| // Coerced struct from `struct S` without all generic pointers lowered into |
| // global ones. |
| // COMMON: %struct.S.coerce = type { i32 addrspace(1)*, float addrspace(1)* } |
| // COMMON: %struct.T.coerce = type { [2 x float addrspace(1)*] } |
| |
| // On the host-side compilation, generic pointer won't be coerced. |
| // HOST-NOT: %struct.S.coerce |
| // HOST-NOT: %struct.T.coerce |
| |
| // HOST: define void @_Z22__device_stub__kernel1Pi(i32* %x) |
| // COMMON-LABEL: define amdgpu_kernel void @_Z7kernel1Pi(i32 addrspace(1)*{{.*}} %x.coerce) |
| // CHECK: = addrspacecast [[TYPE:.*]] addrspace(1)* %{{.*}} to [[TYPE]]* |
| // CHECK-NOT: = addrspacecast [[TYPE:.*]] addrspace(1)* %{{.*}} to [[TYPE]]* |
| // OPT: [[VAL:%.*]] = load i32, i32 addrspace(1)* %x.coerce, align 4 |
| // OPT: [[INC:%.*]] = add nsw i32 [[VAL]], 1 |
| // OPT: store i32 [[INC]], i32 addrspace(1)* %x.coerce, align 4 |
| // OPT: ret void |
| __global__ void kernel1(int *x) { |
| x[0]++; |
| } |
| |
| // HOST: define void @_Z22__device_stub__kernel2Ri(i32* nonnull align 4 dereferenceable(4) %x) |
| // COMMON-LABEL: define amdgpu_kernel void @_Z7kernel2Ri(i32 addrspace(1)*{{.*}} nonnull align 4 dereferenceable(4) %x.coerce) |
| // CHECK: = addrspacecast [[TYPE:.*]] addrspace(1)* %{{.*}} to [[TYPE]]* |
| // CHECK-NOT: = addrspacecast [[TYPE:.*]] addrspace(1)* %{{.*}} to [[TYPE]]* |
| // OPT: [[VAL:%.*]] = load i32, i32 addrspace(1)* %x.coerce, align 4 |
| // OPT: [[INC:%.*]] = add nsw i32 [[VAL]], 1 |
| // OPT: store i32 [[INC]], i32 addrspace(1)* %x.coerce, align 4 |
| // OPT: ret void |
| __global__ void kernel2(int &x) { |
| x++; |
| } |
| |
| // HOST: define void @_Z22__device_stub__kernel3PU3AS2iPU3AS1i(i32 addrspace(2)* %x, i32 addrspace(1)* %y) |
| // CHECK-LABEL: define amdgpu_kernel void @_Z7kernel3PU3AS2iPU3AS1i(i32 addrspace(2)*{{.*}} %x, i32 addrspace(1)*{{.*}} %y) |
| // CHECK-NOT: = addrspacecast [[TYPE:.*]] addrspace(1)* %{{.*}} to [[TYPE]]* |
| __global__ void kernel3(__attribute__((address_space(2))) int *x, |
| __attribute__((address_space(1))) int *y) { |
| y[0] = x[0]; |
| } |
| |
| // COMMON-LABEL: define void @_Z4funcPi(i32*{{.*}} %x) |
| // CHECK-NOT: = addrspacecast [[TYPE:.*]] addrspace(1)* %{{.*}} to [[TYPE]]* |
| __device__ void func(int *x) { |
| x[0]++; |
| } |
| |
| struct S { |
| int *x; |
| float *y; |
| }; |
| // `by-val` struct will be coerced into a similar struct with all generic |
| // pointers lowerd into global ones. |
| // HOST: define void @_Z22__device_stub__kernel41S(i32* %s.coerce0, float* %s.coerce1) |
| // COMMON-LABEL: define amdgpu_kernel void @_Z7kernel41S(%struct.S.coerce %s.coerce) |
| // OPT: [[P0:%.*]] = extractvalue %struct.S.coerce %s.coerce, 0 |
| // OPT: [[P1:%.*]] = extractvalue %struct.S.coerce %s.coerce, 1 |
| // OPT: [[V0:%.*]] = load i32, i32 addrspace(1)* [[P0]], align 4 |
| // OPT: [[INC:%.*]] = add nsw i32 [[V0]], 1 |
| // OPT: store i32 [[INC]], i32 addrspace(1)* [[P0]], align 4 |
| // OPT: [[V1:%.*]] = load float, float addrspace(1)* [[P1]], align 4 |
| // OPT: [[ADD:%.*]] = fadd contract float [[V1]], 1.000000e+00 |
| // OPT: store float [[ADD]], float addrspace(1)* [[P1]], align 4 |
| // OPT: ret void |
| __global__ void kernel4(struct S s) { |
| s.x[0]++; |
| s.y[0] += 1.f; |
| } |
| |
| // If a pointer to struct is passed, only the pointer itself is coerced into the global one. |
| // HOST: define void @_Z22__device_stub__kernel5P1S(%struct.S* %s) |
| // COMMON-LABEL: define amdgpu_kernel void @_Z7kernel5P1S(%struct.S addrspace(1)*{{.*}} %s.coerce) |
| __global__ void kernel5(struct S *s) { |
| s->x[0]++; |
| s->y[0] += 1.f; |
| } |
| |
| struct T { |
| float *x[2]; |
| }; |
| // `by-val` array is also coerced. |
| // HOST: define void @_Z22__device_stub__kernel61T(float* %t.coerce0, float* %t.coerce1) |
| // COMMON-LABEL: define amdgpu_kernel void @_Z7kernel61T(%struct.T.coerce %t.coerce) |
| // OPT: [[ARR:%.*]] = extractvalue %struct.T.coerce %t.coerce, 0 |
| // OPT: [[P0:%.*]] = extractvalue [2 x float addrspace(1)*] [[ARR]], 0 |
| // OPT: [[P1:%.*]] = extractvalue [2 x float addrspace(1)*] [[ARR]], 1 |
| // OPT: [[V0:%.*]] = load float, float addrspace(1)* [[P0]], align 4 |
| // OPT: [[ADD0:%.*]] = fadd contract float [[V0]], 1.000000e+00 |
| // OPT: store float [[ADD0]], float addrspace(1)* [[P0]], align 4 |
| // OPT: [[V1:%.*]] = load float, float addrspace(1)* [[P1]], align 4 |
| // OPT: [[ADD1:%.*]] = fadd contract float [[V1]], 2.000000e+00 |
| // OPT: store float [[ADD1]], float addrspace(1)* [[P1]], align 4 |
| // OPT: ret void |
| __global__ void kernel6(struct T t) { |
| t.x[0][0] += 1.f; |
| t.x[1][0] += 2.f; |
| } |
| |
| // Check that coerced pointers retain the noalias attribute when qualified with __restrict. |
| // HOST: define void @_Z22__device_stub__kernel7Pi(i32* noalias %x) |
| // COMMON-LABEL: define amdgpu_kernel void @_Z7kernel7Pi(i32 addrspace(1)* noalias{{.*}} %x.coerce) |
| __global__ void kernel7(int *__restrict x) { |
| x[0]++; |
| } |