e2cfbfcc0c
In the spirit of TRegions [0], this patch provides a simpler and uniform interface for a kernel to set up the device runtime. The OMPIRBuilder is used for reuse in Flang. A custom state machine will be generated in the follow up patch. The "surplus" threads of the "master warp" will not exit early anymore so we need to use non-aligned barriers. The new runtime will not have an extra warp but also require these non-aligned barriers. [0] https://link.springer.com/chapter/10.1007/978-3-030-28596-8_11 This was in parts extracted from D59319. Reviewed By: ABataev, JonChesterfield Differential Revision: https://reviews.llvm.org/D101976
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
// REQUIRES: amdgpu-registered-target
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// 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
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// 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
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// expected-no-diagnostics
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#ifndef HEADER
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#define HEADER
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#define N 1000
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int test_amdgcn_target_tid_threads() {
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// CHECK-LABEL: define weak amdgpu_kernel void @{{.*}}test_amdgcn_target_tid_threads
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int arr[N];
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// CHECK: call i32 @__kmpc_target_init(%struct.ident_t* addrspacecast (%struct.ident_t addrspace(1)* @1 to %struct.ident_t*), i1 false, i1 true, i1 true)
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#pragma omp target
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for (int i = 0; i < N; i++) {
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arr[i] = 1;
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}
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return arr[0];
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}
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int test_amdgcn_target_tid_threads_simd() {
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// CHECK-LABEL: define weak amdgpu_kernel void @{{.*}}test_amdgcn_target_tid_threads_simd
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int arr[N];
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// CHECK: call i32 @__kmpc_target_init(%struct.ident_t* addrspacecast (%struct.ident_t addrspace(1)* @1 to %struct.ident_t*), i1 true, i1 false, i1 false)
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#pragma omp target simd
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for (int i = 0; i < N; i++) {
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arr[i] = 1;
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}
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return arr[0];
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}
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#endif
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