6a651c7f44
This reverts commit aa9eb47da2.
It introduced a double free in a test case. Reverting to have some time
for fixing this and relanding later.
135 lines
6.0 KiB
MLIR
135 lines
6.0 KiB
MLIR
// RUN: mlir-opt --allow-unregistered-dialect -verify-diagnostics -ownership-based-buffer-deallocation=private-function-dynamic-ownership=false \
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// RUN: --buffer-deallocation-simplification -split-input-file %s | FileCheck %s
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// RUN: mlir-opt --allow-unregistered-dialect -verify-diagnostics -ownership-based-buffer-deallocation=private-function-dynamic-ownership=true \
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// RUN: --buffer-deallocation-simplification -split-input-file %s | FileCheck %s --check-prefix=CHECK-DYNAMIC
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// RUN: mlir-opt %s -buffer-deallocation-pipeline --split-input-file > /dev/null
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// RUN: mlir-opt %s -buffer-deallocation-pipeline=private-function-dynamic-ownership --split-input-file > /dev/null
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// Test Case: Existing AllocOp with no users.
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// BufferDeallocation expected behavior: It should insert a DeallocOp right
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// before ReturnOp.
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func.func private @emptyUsesValue(%arg0: memref<4xf32>) {
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%0 = memref.alloc() : memref<4xf32>
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"test.memref_user"(%0) : (memref<4xf32>) -> ()
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return
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}
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// CHECK-LABEL: func private @emptyUsesValue(
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// CHECK: [[ALLOC:%.*]] = memref.alloc()
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// CHECK: bufferization.dealloc ([[ALLOC]] :
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// CHECK-SAME: if (%true{{[0-9_]*}})
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// CHECK-NOT: retain
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// CHECK-NEXT: return
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// CHECK-DYNAMIC-LABEL: func private @emptyUsesValue(
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// CHECK-DYNAMIC-SAME: [[ARG0:%.+]]: memref<4xf32>, [[ARG1:%.+]]: i1)
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// CHECK-DYNAMIC: [[ALLOC:%.*]] = memref.alloc()
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// CHECK-DYNAMIC: [[BASE:%[a-zA-Z0-9_]+]], {{.*}} = memref.extract_strided_metadata [[ARG0]]
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// CHECK-DYNAMIC-NEXT: bufferization.dealloc ([[BASE]] :{{.*}}) if ([[ARG1]])
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// CHECK-DYNAMIC-NOT: retain
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// CHECK-DYNAMIC-NEXT: bufferization.dealloc ([[ALLOC]] :{{.*}}) if (%true{{[0-9_]*}})
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// CHECK-DYNAMIC-NOT: retain
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// CHECK-DYNAMIC-NEXT: return
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// -----
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func.func @emptyUsesValue(%arg0: memref<4xf32>) {
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%0 = memref.alloc() : memref<4xf32>
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"test.memref_user"(%0) : (memref<4xf32>) -> ()
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return
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}
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// CHECK-LABEL: func @emptyUsesValue(
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// CHECK-DYNAMIC-LABEL: func @emptyUsesValue(
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// CHECK-DYNAMIC: [[ALLOC:%.*]] = memref.alloc()
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// CHECK-DYNAMIC: bufferization.dealloc ([[ALLOC]] :{{.*}}) if (%true{{[0-9_]*}})
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// CHECK-DYNAMIC-NOT: retain
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// CHECK-DYNAMIC-NEXT: return
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// -----
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// Test Case: Dead operations in a single block.
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// BufferDeallocation expected behavior: It only inserts the two missing
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// DeallocOps after the last BufferBasedOp.
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func.func private @redundantOperations(%arg0: memref<2xf32>) {
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%0 = memref.alloc() : memref<2xf32>
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test.buffer_based in(%arg0: memref<2xf32>) out(%0: memref<2xf32>)
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%1 = memref.alloc() : memref<2xf32>
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test.buffer_based in(%0: memref<2xf32>) out(%1: memref<2xf32>)
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return
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}
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// CHECK-LABEL: func private @redundantOperations
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// CHECK: (%[[ARG0:.*]]: {{.*}})
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// CHECK: %[[FIRST_ALLOC:.*]] = memref.alloc()
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// CHECK-NEXT: test.buffer_based
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// CHECK: %[[SECOND_ALLOC:.*]] = memref.alloc()
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// CHECK-NEXT: test.buffer_based
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// CHECK-NEXT: bufferization.dealloc (%[[FIRST_ALLOC]] : {{.*}}) if (%true{{[0-9_]*}})
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// CHECK-NEXT: bufferization.dealloc (%[[SECOND_ALLOC]] : {{.*}}) if (%true{{[0-9_]*}})
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// CHECK-NEXT: return
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// CHECK-DYNAMIC-LABEL: func private @redundantOperations
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// CHECK-DYNAMIC: (%[[ARG0:.*]]: memref{{.*}}, %[[ARG1:.*]]: i1)
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// CHECK-DYNAMIC: %[[FIRST_ALLOC:.*]] = memref.alloc()
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// CHECK-DYNAMIC-NEXT: test.buffer_based
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// CHECK-DYNAMIC: %[[SECOND_ALLOC:.*]] = memref.alloc()
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// CHECK-DYNAMIC-NEXT: test.buffer_based
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// CHECK-DYNAMIC-NEXT: %[[BASE:[a-zA-Z0-9_]+]], {{.*}} = memref.extract_strided_metadata %[[ARG0]]
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// CHECK-DYNAMIC-NEXT: bufferization.dealloc (%[[BASE]] : {{.*}}) if (%[[ARG1]])
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// CHECK-DYNAMIC-NEXT: bufferization.dealloc (%[[FIRST_ALLOC]] : {{.*}}) if (%true{{[0-9_]*}})
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// CHECK-DYNAMIC-NEXT: bufferization.dealloc (%[[SECOND_ALLOC]] : {{.*}}) if (%true{{[0-9_]*}})
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// CHECK-DYNAMIC-NEXT: return
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// -----
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// Test Case: buffer deallocation escaping
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// BufferDeallocation expected behavior: It must not dealloc %arg1 and %x
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// since they are operands of return operation and should escape from
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// deallocating. It should dealloc %y after CopyOp.
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func.func private @memref_in_function_results(
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%arg0: memref<5xf32>,
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%arg1: memref<10xf32>,
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%arg2: memref<5xf32>) -> (memref<10xf32>, memref<15xf32>) {
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%x = memref.alloc() : memref<15xf32>
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%y = memref.alloc() : memref<5xf32>
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test.buffer_based in(%arg0: memref<5xf32>) out(%y: memref<5xf32>)
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test.copy(%y, %arg2) : (memref<5xf32>, memref<5xf32>)
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return %arg1, %x : memref<10xf32>, memref<15xf32>
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}
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// CHECK-LABEL: func private @memref_in_function_results
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// CHECK: (%[[ARG0:.*]]: memref<5xf32>, %[[ARG1:.*]]: memref<10xf32>,
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// CHECK-SAME: %[[RESULT:.*]]: memref<5xf32>)
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// CHECK: %[[X:.*]] = memref.alloc()
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// CHECK: %[[Y:.*]] = memref.alloc()
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// CHECK: test.copy
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// CHECK-NEXT: %[[V0:.+]] = scf.if %false
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// CHECK-NEXT: scf.yield %[[ARG1]]
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// CHECK-NEXT: } else {
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// CHECK-NEXT: %[[CLONE:.+]] = bufferization.clone %[[ARG1]]
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// CHECK-NEXT: scf.yield %[[CLONE]]
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// CHECK-NEXT: }
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// CHECK: bufferization.dealloc (%[[Y]] : {{.*}}) if (%true{{[0-9_]*}})
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// CHECK-NOT: retain
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// CHECK: return %[[V0]], %[[X]]
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// CHECK-DYNAMIC-LABEL: func private @memref_in_function_results
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// CHECK-DYNAMIC: (%[[ARG0:.*]]: memref<5xf32>, %[[ARG1:.*]]: memref<10xf32>,
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// CHECK-DYNAMIC-SAME: %[[RESULT:.*]]: memref<5xf32>, %[[ARG3:.*]]: i1, %[[ARG4:.*]]: i1, %[[ARG5:.*]]: i1)
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// CHECK-DYNAMIC: %[[X:.*]] = memref.alloc()
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// CHECK-DYNAMIC: %[[Y:.*]] = memref.alloc()
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// CHECK-DYNAMIC: test.copy
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// CHECK-DYNAMIC: %[[BASE0:[a-zA-Z0-9_]+]], {{.+}} = memref.extract_strided_metadata %[[ARG0]]
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// CHECK-DYNAMIC: %[[BASE1:[a-zA-Z0-9_]+]], {{.+}} = memref.extract_strided_metadata %[[RESULT]]
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// CHECK-DYNAMIC: bufferization.dealloc (%[[Y]] : {{.*}}) if (%true{{[0-9_]*}})
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// CHECK-DYNAMIC-NOT: retain
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// CHECK-DYNAMIC: [[OWN:%.+]] = bufferization.dealloc (%[[BASE0]], %[[BASE1]] : {{.*}}) if (%[[ARG3]], %[[ARG5]]) retain (%[[ARG1]] :
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// CHECK-DYNAMIC: [[OR:%.+]] = arith.ori [[OWN]], %[[ARG4]]
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// CHECK-DYNAMIC: return %[[ARG1]], %[[X]], [[OR]], %true
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