// RUN: mlir-opt %s -async-runtime-ref-counting-opt | FileCheck %s
func.func private @consume_token(%arg0: !async.token)
// CHECK-LABEL: @cancellable_operations_0
func.func @cancellable_operations_0(%arg0: !async.token) {
// CHECK-NOT: async.runtime.add_ref
// CHECK-NOT: async.runtime.drop_ref
async.runtime.add_ref %arg0 {count = 1 : i64} : !async.token
async.runtime.drop_ref %arg0 {count = 1 : i64} : !async.token
// CHECK: return
return
}
// CHECK-LABEL: @cancellable_operations_1
func.func @cancellable_operations_1(%arg0: !async.token) {
// CHECK-NOT: async.runtime.add_ref
async.runtime.add_ref %arg0 {count = 1 : i64} : !async.token
// CHECK: call @consume_toke
call @consume_token(%arg0): (!async.token) -> ()
// CHECK-NOT: async.runtime.drop_ref
async.runtime.drop_ref %arg0 {count = 1 : i64} : !async.token
// CHECK: return
return
}
// CHECK-LABEL: @cancellable_operations_2
func.func @cancellable_operations_2(%arg0: !async.token) {
// CHECK: async.runtime.await
// CHECK-NEXT: async.runtime.await
// CHECK-NEXT: async.runtime.await
// CHECK-NEXT: return
async.runtime.add_ref %arg0 {count = 1 : i64} : !async.token
async.runtime.await %arg0 : !async.token
async.runtime.drop_ref %arg0 {count = 1 : i64} : !async.token
async.runtime.await %arg0 : !async.token
async.runtime.add_ref %arg0 {count = 1 : i64} : !async.token
async.runtime.await %arg0 : !async.token
async.runtime.drop_ref %arg0 {count = 1 : i64} : !async.token
return
}
// CHECK-LABEL: @cancellable_operations_3
func.func @cancellable_operations_3(%arg0: !async.token) {
// CHECK-NOT: add_ref
async.runtime.add_ref %arg0 {count = 1 : i64} : !async.token
// CHECK: call @consume_toke
call @consume_token(%arg0): (!async.token) -> ()
// CHECK-NOT: async.runtime.drop_ref
async.runtime.drop_ref %arg0 {count = 1 : i64} : !async.token
// CHECK: async.runtime.await
async.runtime.await %arg0 : !async.token
// CHECK: return
return
}
// CHECK-LABEL: @not_cancellable_operations_0
func.func @not_cancellable_operations_0(%arg0: !async.token) {
// CHECK: add_ref
async.runtime.add_ref %arg0 {count = 1 : i64} : !async.token
// CHECK: call @consume_toke
call @consume_token(%arg0): (!async.token) -> ()
// CHECK: async.runtime.await
async.runtime.await %arg0 : !async.token
// CHECK: async.runtime.drop_ref
async.runtime.drop_ref %arg0 {count = 1 : i64} : !async.token
// CHECK: return
return
}