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1// RUN: mlir-opt -verify-diagnostics -expand-realloc=emit-deallocs=false -ownership-based-buffer-deallocation \2// RUN: --buffer-deallocation-simplification -split-input-file %s | FileCheck %s3 4// RUN: mlir-opt %s -buffer-deallocation-pipeline --split-input-file > /dev/null5 6func.func @auto_dealloc() {7 %c10 = arith.constant 10 : index8 %c100 = arith.constant 100 : index9 %alloc = memref.alloc(%c10) : memref<?xi32>10 %realloc = memref.realloc %alloc(%c100) : memref<?xi32> to memref<?xi32>11 "test.read_buffer"(%realloc) : (memref<?xi32>) -> ()12 return13}14 15// CHECK-LABEL: func @auto_dealloc16// CHECK: [[ALLOC:%.*]] = memref.alloc(17// CHECK-NOT: bufferization.dealloc18// CHECK: [[V0:%.+]]:2 = scf.if19// CHECK-NOT: bufferization.dealloc20// CHECK: test.read_buffer21// CHECK-NEXT: [[BASE:%[a-zA-Z0-9_]+]]{{.*}} = memref.extract_strided_metadata [[V0]]#022// CHECK-NEXT: bufferization.dealloc ([[ALLOC]], [[BASE]] :{{.*}}) if (%true{{[0-9_]*}}, [[V0]]#1)23// CHECK-NEXT: return24 25// -----26 27func.func @auto_dealloc_inside_nested_region(%arg0: memref<?xi32>, %arg1: i1) {28 %c100 = arith.constant 100 : index29 %0 = scf.if %arg1 -> memref<?xi32> {30 %realloc = memref.realloc %arg0(%c100) : memref<?xi32> to memref<?xi32>31 scf.yield %realloc : memref<?xi32>32 } else {33 scf.yield %arg0 : memref<?xi32>34 }35 "test.read_buffer"(%0) : (memref<?xi32>) -> ()36 return37}38 39// CHECK-LABEL: func @auto_dealloc_inside_nested_region40// CHECK-SAME: (%arg0: memref<?xi32>, %arg1: i1)41// CHECK-NOT: dealloc42// CHECK: "test.read_buffer"([[V0:%.+]]#0)43// CHECK-NEXT: [[BASE:%[a-zA-Z0-9_]+]],{{.*}} = memref.extract_strided_metadata [[V0]]#044// CHECK-NEXT: bufferization.dealloc ([[BASE]] : memref<i32>) if ([[V0]]#1)45// CHECK-NEXT: return46