amdgcn_target_codegen.cpp
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// REQUIRES: amdgpu-registered-target
// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-unknown-unknown -fopenmp-targets=amdgcn-amd-amdhsa -emit-llvm-bc %s -o %t-ppc-host.bc
// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple amdgcn-amd-amdhsa -fopenmp-targets=amdgcn-amd-amdhsa -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s
// expected-no-diagnostics
#ifndef HEADER
#define HEADER
#define N 1000
int test_amdgcn_target_tid_threads() {
// CHECK-LABEL: define weak void @{{.*}}test_amdgcn_target_tid_threads
int arr[N];
// CHECK: [[NUM_THREADS:%.+]] = call i64 @__ockl_get_local_size(i32 0)
// CHECK-NEXT: [[VAR:%.+]] = trunc i64 [[NUM_THREADS]] to i32
// CHECK-NEXT: sub nuw i32 [[VAR]], 64
// CHECK: call i32 @llvm.amdgcn.workitem.id.x()
#pragma omp target
for (int i = 0; i < N; i++) {
arr[i] = 1;
}
return arr[0];
}
int test_amdgcn_target_tid_threads_simd() {
// CHECK-LABEL: define weak void @{{.*}}test_amdgcn_target_tid_threads_simd
int arr[N];
// CHECK: [[NUM_THREADS:%.+]] = call i64 @__ockl_get_local_size(i32 0)
// CHECK-NEXT: [[VAR:%.+]] = trunc i64 [[NUM_THREADS]] to i32
// CHECK-NEXT: call void @__kmpc_spmd_kernel_init(i32 [[VAR]], i16 0, i16 0)
#pragma omp target simd
for (int i = 0; i < N; i++) {
arr[i] = 1;
}
return arr[0];
}
#endif