derek.holloway
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96 lines
3.3 KiB
MLIR
96 lines
3.3 KiB
MLIR
// RUN: mlir-translate -mlir-to-llvmir -split-input-file %s | FileCheck %s
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// test a parallel reduction with a cleanup region
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omp.declare_reduction @add_reduction_i_32 : !llvm.ptr init {
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^bb0(%arg0: !llvm.ptr):
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%0 = llvm.mlir.constant(0 : i32) : i32
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%c4 = llvm.mlir.constant(4 : i64) : i64
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%2 = llvm.call @malloc(%c4) : (i64) -> !llvm.ptr
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llvm.store %0, %2 : i32, !llvm.ptr
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omp.yield(%2 : !llvm.ptr)
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} combiner {
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^bb0(%arg0: !llvm.ptr, %arg1: !llvm.ptr):
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%0 = llvm.load %arg0 : !llvm.ptr -> i32
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%1 = llvm.load %arg1 : !llvm.ptr -> i32
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%2 = llvm.add %0, %1 : i32
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llvm.store %2, %arg0 : i32, !llvm.ptr
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omp.yield(%arg0 : !llvm.ptr)
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} cleanup {
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^bb0(%arg0: !llvm.ptr):
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llvm.call @free(%arg0) : (!llvm.ptr) -> ()
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omp.yield
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}
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// CHECK-LABEL: @main
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llvm.func @main() {
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%0 = llvm.mlir.constant(-1 : i32) : i32
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%1 = llvm.mlir.addressof @i : !llvm.ptr
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%2 = llvm.mlir.addressof @j : !llvm.ptr
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omp.parallel reduction(byref @add_reduction_i_32 %1 -> %arg0, byref @add_reduction_i_32 %2 -> %arg1 : !llvm.ptr, !llvm.ptr) {
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llvm.store %0, %arg0 : i32, !llvm.ptr
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llvm.store %0, %arg1 : i32, !llvm.ptr
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omp.terminator
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}
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llvm.return
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}
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llvm.mlir.global internal @i() {addr_space = 0 : i32} : i32 {
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%0 = llvm.mlir.constant(0 : i32) : i32
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llvm.return %0 : i32
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}
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llvm.mlir.global internal @j() {addr_space = 0 : i32} : i32 {
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%0 = llvm.mlir.constant(0 : i32) : i32
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llvm.return %0 : i32
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}
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llvm.func @malloc(%arg0 : i64) -> !llvm.ptr
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llvm.func @free(%arg0 : !llvm.ptr) -> ()
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// Call to the outlined function.
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// CHECK: call void {{.*}} @__kmpc_fork_call
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// CHECK-SAME: @[[OUTLINED:[A-Za-z_.][A-Za-z0-9_.]*]]
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// Outlined function.
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// CHECK: define internal void @[[OUTLINED]]
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// Private reduction variable and its initialization.
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// CHECK: %tid.addr.local = alloca i32
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// CHECK: %[[PRIV_PTR_I:.+]] = alloca ptr
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// CHECK: %[[PRIV_PTR_J:.+]] = alloca ptr
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// CHECK: %[[MALLOC_I:.+]] = call ptr @malloc(i64 4)
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// CHECK: store ptr %[[MALLOC_I]], ptr %[[PRIV_PTR_I]]
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// CHECK: %[[MALLOC_J:.+]] = call ptr @malloc(i64 4)
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// CHECK: store ptr %[[MALLOC_J]], ptr %[[PRIV_PTR_J]]
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// Call to the reduction function.
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// CHECK: call i32 @__kmpc_reduce
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// CHECK-SAME: @[[REDFUNC:[A-Za-z_.][A-Za-z0-9_.]*]]
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// Non-atomic reduction:
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// CHECK: %[[PRIV_VAL_PTR_I:.+]] = load ptr, ptr %[[PRIV_PTR_I]]
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// CHECK: %[[LOAD_I:.+]] = load i32, ptr @i
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// CHECK: %[[PRIV_VAL_I:.+]] = load i32, ptr %[[PRIV_VAL_PTR_I]]
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// CHECK: %[[SUM_I:.+]] = add i32 %[[LOAD_I]], %[[PRIV_VAL_I]]
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// CHECK: store i32 %[[SUM_I]], ptr @i
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// CHECK: %[[PRIV_VAL_PTR_J:.+]] = load ptr, ptr %[[PRIV_PTR_J]]
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// CHECK: %[[LOAD_J:.+]] = load i32, ptr @j
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// CHECK: %[[PRIV_VAL_J:.+]] = load i32, ptr %[[PRIV_VAL_PTR_J]]
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// CHECK: %[[SUM_J:.+]] = add i32 %[[LOAD_J]], %[[PRIV_VAL_J]]
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// CHECK: store i32 %[[SUM_J]], ptr @j
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// CHECK: call void @__kmpc_end_reduce
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// CHECK: br label %[[FINALIZE:.+]]
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// CHECK: [[FINALIZE]]:
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// CHECK: br label %[[OMP_FINALIZE:.+]]
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// Cleanup region:
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// CHECK: [[OMP_FINALIZE]]:
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// CHECK: %[[PRIV_I:.+]] = load ptr, ptr %[[PRIV_PTR_I]], align 8
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// CHECK: call void @free(ptr %[[PRIV_I]])
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// CHECK: %[[PRIV_J:.+]] = load ptr, ptr %[[PRIV_PTR_J]], align 8
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// CHECK: call void @free(ptr %[[PRIV_J]])
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// Reduction function.
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// CHECK: define internal void @[[REDFUNC]]
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// CHECK: add i32
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