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1// RUN: mlir-opt %s -pass-pipeline='builtin.module(func.func(test-alias-analysis-modref))' -split-input-file -allow-unregistered-dialect 2>&1 | FileCheck %s2 3// CHECK-LABEL: Testing : "no_side_effects"4// CHECK: alloc -> func.region0#0: NoModRef5// CHECK: dealloc -> func.region0#0: NoModRef6// CHECK: return -> func.region0#0: NoModRef7func.func @no_side_effects(%arg: memref<2xf32>) attributes {test.ptr = "func"} {8 %1 = memref.alloc() {test.ptr = "alloc"} : memref<8x64xf32>9 memref.dealloc %1 {test.ptr = "dealloc"} : memref<8x64xf32>10 return {test.ptr = "return"}11}12 13// -----14 15// CHECK-LABEL: Testing : "simple"16// CHECK-DAG: store -> alloc#0: Mod17// CHECK-DAG: load -> alloc#0: Ref18 19// CHECK-DAG: store -> func.region0#0: NoModRef20// CHECK-DAG: load -> func.region0#0: NoModRef21func.func @simple(%arg: memref<i32>, %value: i32) attributes {test.ptr = "func"} {22 %1 = memref.alloca() {test.ptr = "alloc"} : memref<i32>23 memref.store %value, %1[] {test.ptr = "store"} : memref<i32>24 %2 = memref.load %1[] {test.ptr = "load"} : memref<i32>25 return {test.ptr = "return"}26}27 28// -----29 30// CHECK-LABEL: Testing : "mayalias"31// CHECK-DAG: store -> func.region0#0: Mod32// CHECK-DAG: load -> func.region0#0: Ref33 34// CHECK-DAG: store -> func.region0#1: Mod35// CHECK-DAG: load -> func.region0#1: Ref36func.func @mayalias(%arg0: memref<i32>, %arg1: memref<i32>, %value: i32) attributes {test.ptr = "func"} {37 memref.store %value, %arg1[] {test.ptr = "store"} : memref<i32>38 %1 = memref.load %arg1[] {test.ptr = "load"} : memref<i32>39 return {test.ptr = "return"}40}41 42// -----43 44// CHECK-LABEL: Testing : "recursive"45// CHECK-DAG: if -> func.region0#0: ModRef46// CHECK-DAG: if -> func.region0#1: ModRef47 48// TODO: This is provably NoModRef, but requires handling recursive side49// effects.50// CHECK-DAG: if -> alloc#0: ModRef51func.func @recursive(%arg0: memref<i32>, %arg1: memref<i32>, %cond: i1, %value: i32) attributes {test.ptr = "func"} {52 %0 = memref.alloca() {test.ptr = "alloc"} : memref<i32>53 scf.if %cond {54 memref.store %value, %arg0[] : memref<i32>55 %1 = memref.load %arg0[] : memref<i32>56 } {test.ptr = "if"}57 return {test.ptr = "return"}58}59 60// -----61 62// CHECK-LABEL: Testing : "unknown"63// CHECK-DAG: unknown -> func.region0#0: ModRef64func.func @unknown(%arg0: memref<i32>) attributes {test.ptr = "func"} {65 "foo.op"() {test.ptr = "unknown"} : () -> ()66 return67}68