diff options
Diffstat (limited to 'mlir/test/Target/LLVMIR/openmp-parallel-reduction-cleanup.mlir')
-rw-r--r-- | mlir/test/Target/LLVMIR/openmp-parallel-reduction-cleanup.mlir | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/mlir/test/Target/LLVMIR/openmp-parallel-reduction-cleanup.mlir b/mlir/test/Target/LLVMIR/openmp-parallel-reduction-cleanup.mlir new file mode 100644 index 0000000..9ae4c4a --- /dev/null +++ b/mlir/test/Target/LLVMIR/openmp-parallel-reduction-cleanup.mlir @@ -0,0 +1,94 @@ +// RUN: mlir-translate -mlir-to-llvmir -split-input-file %s | FileCheck %s + +// test a parallel reduction with a cleanup region + + omp.declare_reduction @add_reduction_i_32 : !llvm.ptr init { + ^bb0(%arg0: !llvm.ptr): + %0 = llvm.mlir.constant(0 : i32) : i32 + %c4 = llvm.mlir.constant(4 : i64) : i64 + %2 = llvm.call @malloc(%c4) : (i64) -> !llvm.ptr + llvm.store %0, %2 : i32, !llvm.ptr + omp.yield(%2 : !llvm.ptr) + } combiner { + ^bb0(%arg0: !llvm.ptr, %arg1: !llvm.ptr): + %0 = llvm.load %arg0 : !llvm.ptr -> i32 + %1 = llvm.load %arg1 : !llvm.ptr -> i32 + %2 = llvm.add %0, %1 : i32 + llvm.store %2, %arg0 : i32, !llvm.ptr + omp.yield(%arg0 : !llvm.ptr) + } cleanup { + ^bb0(%arg0: !llvm.ptr): + llvm.call @free(%arg0) : (!llvm.ptr) -> () + omp.yield + } + + // CHECK-LABEL: @main + llvm.func @main() { + %0 = llvm.mlir.constant(-1 : i32) : i32 + %1 = llvm.mlir.addressof @i : !llvm.ptr + %2 = llvm.mlir.addressof @j : !llvm.ptr + omp.parallel byref reduction(@add_reduction_i_32 %1 -> %arg0 : !llvm.ptr, @add_reduction_i_32 %2 -> %arg1 : !llvm.ptr) { + llvm.store %0, %arg0 : i32, !llvm.ptr + llvm.store %0, %arg1 : i32, !llvm.ptr + omp.terminator + } + llvm.return + } + llvm.mlir.global internal @i() {addr_space = 0 : i32} : i32 { + %0 = llvm.mlir.constant(0 : i32) : i32 + llvm.return %0 : i32 + } + llvm.mlir.global internal @j() {addr_space = 0 : i32} : i32 { + %0 = llvm.mlir.constant(0 : i32) : i32 + llvm.return %0 : i32 + } + llvm.func @malloc(%arg0 : i64) -> !llvm.ptr + llvm.func @free(%arg0 : !llvm.ptr) -> () + +// CHECK: %{{.+}} = +// Call to the outlined function. +// CHECK: call void {{.*}} @__kmpc_fork_call +// CHECK-SAME: @[[OUTLINED:[A-Za-z_.][A-Za-z0-9_.]*]] + +// Outlined function. +// CHECK: define internal void @[[OUTLINED]] + +// Private reduction variable and its initialization. +// CHECK: %tid.addr.local = alloca i32 +// CHECK: %[[MALLOC_I:.+]] = call ptr @malloc(i64 4) +// CHECK: %[[PRIV_PTR_I:.+]] = alloca ptr +// CHECK: store ptr %[[MALLOC_I]], ptr %[[PRIV_PTR_I]] +// CHECK: %[[MALLOC_J:.+]] = call ptr @malloc(i64 4) +// CHECK: %[[PRIV_PTR_J:.+]] = alloca ptr +// CHECK: store ptr %[[MALLOC_J]], ptr %[[PRIV_PTR_J]] + +// Call to the reduction function. +// CHECK: call i32 @__kmpc_reduce +// CHECK-SAME: @[[REDFUNC:[A-Za-z_.][A-Za-z0-9_.]*]] + + +// Non-atomic reduction: +// CHECK: %[[PRIV_VAL_PTR_I:.+]] = load ptr, ptr %[[PRIV_PTR_I]] +// CHECK: %[[LOAD_I:.+]] = load i32, ptr @i +// CHECK: %[[PRIV_VAL_I:.+]] = load i32, ptr %[[PRIV_VAL_PTR_I]] +// CHECK: %[[SUM_I:.+]] = add i32 %[[LOAD_I]], %[[PRIV_VAL_I]] +// CHECK: store i32 %[[SUM_I]], ptr @i +// CHECK: %[[PRIV_VAL_PTR_J:.+]] = load ptr, ptr %[[PRIV_PTR_J]] +// CHECK: %[[LOAD_J:.+]] = load i32, ptr @j +// CHECK: %[[PRIV_VAL_J:.+]] = load i32, ptr %[[PRIV_VAL_PTR_J]] +// CHECK: %[[SUM_J:.+]] = add i32 %[[LOAD_J]], %[[PRIV_VAL_J]] +// CHECK: store i32 %[[SUM_J]], ptr @j +// CHECK: call void @__kmpc_end_reduce +// CHECK: br label %[[FINALIZE:.+]] + +// CHECK: [[FINALIZE]]: +// CHECK: br label %[[OMP_FINALIZE:.+]] + +// Cleanup region: +// CHECK: [[OMP_FINALIZE]]: +// CHECK: call void @free(ptr %[[PRIV_PTR_I]]) +// CHECK: call void @free(ptr %[[PRIV_PTR_J]]) + +// Reduction function. +// CHECK: define internal void @[[REDFUNC]] +// CHECK: add i32 |