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// RUN: mlir-opt -verify-diagnostics -expand-realloc=emit-deallocs=false -ownership-based-buffer-deallocation \
// RUN: --buffer-deallocation-simplification -split-input-file %s | FileCheck %s
// RUN: mlir-opt %s -buffer-deallocation-pipeline --split-input-file > /dev/null
func.func @auto_dealloc() {
%c10 = arith.constant 10 : index
%c100 = arith.constant 100 : index
%alloc = memref.alloc(%c10) : memref<?xi32>
%realloc = memref.realloc %alloc(%c100) : memref<?xi32> to memref<?xi32>
"test.read_buffer"(%realloc) : (memref<?xi32>) -> ()
return
}
// CHECK-LABEL: func @auto_dealloc
// CHECK: [[ALLOC:%.*]] = memref.alloc(
// CHECK-NOT: bufferization.dealloc
// CHECK: [[V0:%.+]]:2 = scf.if
// CHECK-NOT: bufferization.dealloc
// CHECK: test.read_buffer
// CHECK-NEXT: [[BASE:%[a-zA-Z0-9_]+]]{{.*}} = memref.extract_strided_metadata [[V0]]#0
// CHECK-NEXT: bufferization.dealloc ([[ALLOC]], [[BASE]] :{{.*}}) if (%true{{[0-9_]*}}, [[V0]]#1)
// CHECK-NEXT: return
// -----
func.func @auto_dealloc_inside_nested_region(%arg0: memref<?xi32>, %arg1: i1) {
%c100 = arith.constant 100 : index
%0 = scf.if %arg1 -> memref<?xi32> {
%realloc = memref.realloc %arg0(%c100) : memref<?xi32> to memref<?xi32>
scf.yield %realloc : memref<?xi32>
} else {
scf.yield %arg0 : memref<?xi32>
}
"test.read_buffer"(%0) : (memref<?xi32>) -> ()
return
}
// CHECK-LABEL: func @auto_dealloc_inside_nested_region
// CHECK-SAME: (%arg0: memref<?xi32>, %arg1: i1)
// CHECK-NOT: dealloc
// CHECK: "test.read_buffer"([[V0:%.+]]#0)
// CHECK-NEXT: [[BASE:%[a-zA-Z0-9_]+]],{{.*}} = memref.extract_strided_metadata [[V0]]#0
// CHECK-NEXT: bufferization.dealloc ([[BASE]] : memref<i32>) if ([[V0]]#1)
// CHECK-NEXT: return
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