| ; RUN: opt < %s -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| %struct = type { i32, i32, i32 } |
| |
| ; CHECK-LABEL: test_simple |
| |
| ; CHECK-DAG: MayAlias: %struct* %st, i32* %x |
| ; CHECK-DAG: MayAlias: %struct* %st, i32* %y |
| ; CHECK-DAG: MayAlias: %struct* %st, i32* %z |
| |
| ; CHECK-DAG: NoAlias: i32* %x, i32* %y |
| ; CHECK-DAG: NoAlias: i32* %x, i32* %z |
| ; CHECK-DAG: NoAlias: i32* %y, i32* %z |
| |
| ; CHECK-DAG: MayAlias: %struct* %st, %struct* %y |
| ; CHECK-DAG: MayAlias: i32* %x, %struct* %y |
| ; CHECK-DAG: MayAlias: i32* %x, i80* %y |
| |
| ; CHECK-DAG: MayAlias: %struct* %st, i64* %y |
| ; CHECK-DAG: MayAlias: i64* %y, i32* %z |
| ; CHECK-DAG: NoAlias: i32* %x, i64* %y |
| |
| ; CHECK-DAG: MustAlias: %struct* %y, i32* %y |
| ; CHECK-DAG: MustAlias: i64* %y, i32* %y |
| ; CHECK-DAG: MustAlias: i80* %y, i32* %y |
| |
| define void @test_simple(ptr %st, i64 %i, i64 %j, i64 %k) { |
| %x = getelementptr inbounds %struct, ptr %st, i64 %i, i32 0 |
| %y = getelementptr inbounds %struct, ptr %st, i64 %j, i32 1 |
| %z = getelementptr inbounds %struct, ptr %st, i64 %k, i32 2 |
| load %struct, ptr %st |
| load i32, ptr %x |
| load i32, ptr %y |
| load i32, ptr %z |
| load %struct, ptr %y |
| load i80, ptr %y |
| load i64, ptr %y |
| ret void |
| } |
| |
| ; As the GEP is not inbounds, these pointers may alias due to overflow. |
| ; CHECK-LABEL: test_not_inbounds |
| ; CHECK: MayAlias: i32* %x, i32* %y |
| define void @test_not_inbounds(ptr %st, i64 %i, i64 %j, i64 %k) { |
| %x = getelementptr %struct, ptr %st, i64 %i, i32 0 |
| %y = getelementptr %struct, ptr %st, i64 %j, i32 1 |
| load i32, ptr %x |
| load i32, ptr %y |
| ret void |
| } |
| |
| ; CHECK-LABEL: test_in_array |
| |
| ; CHECK-DAG: MayAlias: [1 x %struct]* %st, i32* %x |
| ; CHECK-DAG: MayAlias: [1 x %struct]* %st, i32* %y |
| ; CHECK-DAG: MayAlias: [1 x %struct]* %st, i32* %z |
| |
| ; CHECK-DAG: NoAlias: i32* %x, i32* %y |
| ; CHECK-DAG: NoAlias: i32* %x, i32* %z |
| ; CHECK-DAG: NoAlias: i32* %y, i32* %z |
| |
| ; CHECK-DAG: MayAlias: [1 x %struct]* %st, %struct* %y |
| ; CHECK-DAG: MayAlias: i32* %x, %struct* %y |
| ; CHECK-DAG: MayAlias: i32* %x, i80* %y |
| |
| ; CHECK-DAG: MayAlias: [1 x %struct]* %st, i64* %y |
| ; CHECK-DAG: MayAlias: i64* %y, i32* %z |
| ; CHECK-DAG: NoAlias: i32* %x, i64* %y |
| |
| ; CHECK-DAG: MustAlias: %struct* %y, i32* %y |
| ; CHECK-DAG: MustAlias: i64* %y, i32* %y |
| ; CHECK-DAG: MustAlias: i80* %y, i32* %y |
| |
| define void @test_in_array(ptr %st, i64 %i, i64 %j, i64 %k, i64 %i1, i64 %j1, i64 %k1) { |
| %x = getelementptr inbounds [1 x %struct], ptr %st, i64 %i, i64 %i1, i32 0 |
| %y = getelementptr inbounds [1 x %struct], ptr %st, i64 %j, i64 %j1, i32 1 |
| %z = getelementptr inbounds [1 x %struct], ptr %st, i64 %k, i64 %k1, i32 2 |
| load [1 x %struct], ptr %st |
| load i32, ptr %x |
| load i32, ptr %y |
| load i32, ptr %z |
| load %struct, ptr %y |
| load i80, ptr %y |
| load i64, ptr %y |
| ret void |
| } |
| |
| ; CHECK-LABEL: test_in_3d_array |
| |
| ; CHECK-DAG: MayAlias: [1 x [1 x [1 x %struct]]]* %st, i32* %x |
| ; CHECK-DAG: MayAlias: [1 x [1 x [1 x %struct]]]* %st, i32* %y |
| ; CHECK-DAG: MayAlias: [1 x [1 x [1 x %struct]]]* %st, i32* %z |
| |
| ; CHECK-DAG: NoAlias: i32* %x, i32* %y |
| ; CHECK-DAG: NoAlias: i32* %x, i32* %z |
| ; CHECK-DAG: NoAlias: i32* %y, i32* %z |
| |
| ; CHECK-DAG: MayAlias: [1 x [1 x [1 x %struct]]]* %st, %struct* %y |
| ; CHECK-DAG: MayAlias: i32* %x, %struct* %y |
| ; CHECK-DAG: MayAlias: i32* %x, i80* %y |
| |
| ; CHECK-DAG: MayAlias: [1 x [1 x [1 x %struct]]]* %st, i64* %y |
| ; CHECK-DAG: MayAlias: i64* %y, i32* %z |
| ; CHECK-DAG: NoAlias: i32* %x, i64* %y |
| |
| ; CHECK-DAG: MustAlias: %struct* %y, i32* %y |
| ; CHECK-DAG: MustAlias: i64* %y, i32* %y |
| ; CHECK-DAG: MustAlias: i80* %y, i32* %y |
| |
| define void @test_in_3d_array(ptr %st, i64 %i, i64 %j, i64 %k, i64 %i1, i64 %j1, i64 %k1, i64 %i2, i64 %j2, i64 %k2, i64 %i3, i64 %j3, i64 %k3) { |
| %x = getelementptr inbounds [1 x [1 x [1 x %struct]]], ptr %st, i64 %i, i64 %i1, i64 %i2, i64 %i3, i32 0 |
| %y = getelementptr inbounds [1 x [1 x [1 x %struct]]], ptr %st, i64 %j, i64 %j1, i64 %j2, i64 %j3, i32 1 |
| %z = getelementptr inbounds [1 x [1 x [1 x %struct]]], ptr %st, i64 %k, i64 %k1, i64 %k2, i64 %k3, i32 2 |
| load [1 x [1 x [1 x %struct]]], ptr %st |
| load i32, ptr %x |
| load i32, ptr %y |
| load i32, ptr %z |
| load %struct, ptr %y |
| load i80, ptr %y |
| load i64, ptr %y |
| ret void |
| } |
| |
| ; CHECK-LABEL: test_same_underlying_object_same_indices |
| |
| ; CHECK-DAG: NoAlias: i32* %x, i32* %x2 |
| ; CHECK-DAG: NoAlias: i32* %y, i32* %y2 |
| ; CHECK-DAG: NoAlias: i32* %z, i32* %z2 |
| |
| ; CHECK-DAG: NoAlias: i32* %x, i32* %y2 |
| ; CHECK-DAG: NoAlias: i32* %x, i32* %z2 |
| |
| ; CHECK-DAG: NoAlias: i32* %x2, i32* %y |
| ; CHECK-DAG: NoAlias: i32* %y, i32* %z2 |
| |
| ; CHECK-DAG: NoAlias: i32* %x2, i32* %z |
| ; CHECK-DAG: NoAlias: i32* %y2, i32* %z |
| |
| define void @test_same_underlying_object_same_indices(ptr %st, i64 %i, i64 %j, i64 %k) { |
| %st2 = getelementptr inbounds %struct, ptr %st, i32 10 |
| %x2 = getelementptr inbounds %struct, ptr %st2, i64 %i, i32 0 |
| %y2 = getelementptr inbounds %struct, ptr %st2, i64 %j, i32 1 |
| %z2 = getelementptr inbounds %struct, ptr %st2, i64 %k, i32 2 |
| %x = getelementptr inbounds %struct, ptr %st, i64 %i, i32 0 |
| %y = getelementptr inbounds %struct, ptr %st, i64 %j, i32 1 |
| %z = getelementptr inbounds %struct, ptr %st, i64 %k, i32 2 |
| load i32, ptr %x |
| load i32, ptr %y |
| load i32, ptr %z |
| load i32, ptr %x2 |
| load i32, ptr %y2 |
| load i32, ptr %z2 |
| ret void |
| } |
| |
| ; CHECK-LABEL: test_same_underlying_object_different_indices |
| |
| ; CHECK-DAG: MayAlias: i32* %x, i32* %x2 |
| ; CHECK-DAG: MayAlias: i32* %y, i32* %y2 |
| ; CHECK-DAG: MayAlias: i32* %z, i32* %z2 |
| |
| ; CHECK-DAG: NoAlias: i32* %x, i32* %y2 |
| ; CHECK-DAG: NoAlias: i32* %x, i32* %z2 |
| |
| ; CHECK-DAG: NoAlias: i32* %x2, i32* %y |
| ; CHECK-DAG: NoAlias: i32* %y, i32* %z2 |
| |
| ; CHECK-DAG: NoAlias: i32* %x2, i32* %z |
| ; CHECK-DAG: NoAlias: i32* %y2, i32* %z |
| |
| define void @test_same_underlying_object_different_indices(ptr %st, i64 %i1, i64 %j1, i64 %k1, i64 %i2, i64 %k2, i64 %j2) { |
| %st2 = getelementptr inbounds %struct, ptr %st, i32 10 |
| %x2 = getelementptr inbounds %struct, ptr %st2, i64 %i2, i32 0 |
| %y2 = getelementptr inbounds %struct, ptr %st2, i64 %j2, i32 1 |
| %z2 = getelementptr inbounds %struct, ptr %st2, i64 %k2, i32 2 |
| %x = getelementptr inbounds %struct, ptr %st, i64 %i1, i32 0 |
| %y = getelementptr inbounds %struct, ptr %st, i64 %j1, i32 1 |
| %z = getelementptr inbounds %struct, ptr %st, i64 %k1, i32 2 |
| load i32, ptr %x |
| load i32, ptr %y |
| load i32, ptr %z |
| load i32, ptr %x2 |
| load i32, ptr %y2 |
| load i32, ptr %z2 |
| ret void |
| } |
| |
| |
| %struct2 = type { [1 x { i32, i32 }], [2 x { i32 }] } |
| |
| ; CHECK-LABEL: test_struct_in_array |
| ; CHECK-DAG: MustAlias: i32* %x, i32* %y |
| define void @test_struct_in_array(ptr %st, i64 %i, i64 %j, i64 %k) { |
| %x = getelementptr inbounds %struct2, ptr %st, i32 0, i32 1, i32 1, i32 0 |
| %y = getelementptr inbounds %struct2, ptr %st, i32 0, i32 0, i32 1, i32 1 |
| load i32, ptr %x |
| load i32, ptr %y |
| ret void |
| } |
| |
| ; PR27418 - Treat GEP indices with the same value but different types the same |
| ; CHECK-LABEL: test_different_index_types |
| ; CHECK: MustAlias: i16* %tmp1, i16* %tmp2 |
| define void @test_different_index_types(ptr %arr) { |
| %tmp1 = getelementptr inbounds [2 x i16], ptr %arr, i16 0, i32 1 |
| %tmp2 = getelementptr inbounds [2 x i16], ptr %arr, i16 0, i16 1 |
| load i16, ptr %tmp1 |
| load i16, ptr %tmp2 |
| ret void |
| } |