derek.holloway
7502bf64a4
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48 lines
2.0 KiB
MLIR
48 lines
2.0 KiB
MLIR
// RUN: mlir-opt %s -acc-recipe-materialization | FileCheck %s
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acc.reduction.recipe @reduction_add_memref_f64 : memref<f64> reduction_operator <add> init {
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^bb0(%arg0: memref<f64>):
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%cst = arith.constant 0.000000e+00 : f64
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%0 = memref.alloca() : memref<f64>
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memref.store %cst, %0[] : memref<f64>
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acc.yield %0 : memref<f64>
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} combiner {
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^bb0(%arg0: memref<f64>, %arg1: memref<f64>):
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%0 = memref.load %arg0[] : memref<f64>
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%1 = memref.load %arg1[] : memref<f64>
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%2 = arith.addf %0, %1 fastmath<contract> : f64
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memref.store %2, %arg0[] : memref<f64>
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acc.yield %arg0 : memref<f64>
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}
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// Verify that the reduction init and combine recipes attached to compute
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// ops materialize within the region
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// CHECK-LABEL: func.func @par_reduction_clause_
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// CHECK: acc.parallel {
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// CHECK: [[PRIVATE:%.*]] = acc.reduction_init {{.*}} <add>
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// CHECK-NEXT: [[ZERO:%.*]] = arith.constant 0.000000e+00 : f64
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// CHECK-NEXT: [[ALLOCA:%.*]] = memref.alloca() : memref<f64>
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// CHECK-NEXT: memref.store [[ZERO]], [[ALLOCA]][]
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// CHECK-NEXT: acc.yield {{.*}}
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// CHECK: } {{.*}}acc.var_name = #acc.var_name<"tmp">
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// CHECK: memref.load [[PRIVATE]][]
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// CHECK: memref.store {{.*}}, [[PRIVATE]][]
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// CHECK: acc.reduction_combine_region [[PRIVATE]] into [[REDUCVAR:%.*]] :
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// CHECK: [[LOADVAR:%.*]] = memref.load [[REDUCVAR]][]
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// CHECK-NEXT: [[LOADPRIV:%.*]] = memref.load [[PRIVATE]][]
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// CHECK-NEXT: [[COMBINE:%.*]] = arith.addf [[LOADVAR]], [[LOADPRIV]]
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// CHECK-NEXT: memref.store [[COMBINE]], [[REDUCVAR]][]
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// CHECK: acc.yield
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func.func @par_reduction_clause_(%arg0: memref<f64>) {
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%cst = arith.constant 1.000000e+00 : f64
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%red = acc.reduction varPtr(%arg0 : memref<f64>) recipe(@reduction_add_memref_f64) -> memref<f64> {name = "tmp"}
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acc.parallel reduction(%red : memref<f64>) {
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%3 = memref.load %red[] : memref<f64>
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%4 = arith.addf %3, %cst fastmath<contract> : f64
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memref.store %4, %red[] : memref<f64>
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acc.yield
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}
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return
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}
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