| Chad Rosier | 6e3a92e | 2016-10-19 19:09:03 +0000 | [diff] [blame^] | 1 | ; RUN: opt -basicaa -print-alias-sets -S -o - < %s 2>&1 | FileCheck %s |
| 2 | |
| 3 | @s = global i8 1, align 1 |
| 4 | @d = global i8 2, align 1 |
| 5 | |
| 6 | ; CHECK: Alias sets for function 'test1': |
| 7 | ; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values. |
| 8 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1) |
| 9 | ; CHECK-NOT: 1 Unknown instructions |
| 10 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %s, 1), (i8* %d, 1) |
| 11 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1) |
| 12 | define void @test1(i8* %s, i8* %d) { |
| 13 | entry: |
| 14 | %a = alloca i8, align 1 |
| 15 | %b = alloca i8, align 1 |
| 16 | store i8 1, i8* %a, align 1 |
| 17 | call void @llvm.memcpy.p0i8.p0i8.i64(i8* %d, i8* %s, i64 1, i32 1, i1 false) |
| 18 | store i8 1, i8* %b, align 1 |
| 19 | ret void |
| 20 | } |
| 21 | |
| 22 | ; CHECK: Alias sets for function 'test2': |
| 23 | ; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values. |
| 24 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1) |
| 25 | ; CHECK-NOT: 1 Unknown instructions |
| 26 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref [volatile] Pointers: (i8* %s, 1), (i8* %d, 1) |
| 27 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1) |
| 28 | define void @test2(i8* %s, i8* %d) { |
| 29 | entry: |
| 30 | %a = alloca i8, align 1 |
| 31 | %b = alloca i8, align 1 |
| 32 | store i8 1, i8* %a, align 1 |
| 33 | call void @llvm.memcpy.p0i8.p0i8.i64(i8* %d, i8* %s, i64 1, i32 1, i1 true) |
| 34 | store i8 1, i8* %b, align 1 |
| 35 | ret void |
| 36 | } |
| 37 | |
| 38 | ; CHECK: Alias sets for function 'test3': |
| 39 | ; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values. |
| 40 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1) |
| 41 | ; CHECK-NOT: 1 Unknown instructions |
| 42 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %s, 1), (i8* %d, 1) |
| 43 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1) |
| 44 | define void @test3(i8* %s, i8* %d) { |
| 45 | entry: |
| 46 | %a = alloca i8, align 1 |
| 47 | %b = alloca i8, align 1 |
| 48 | store i8 1, i8* %a, align 1 |
| 49 | call void @llvm.memmove.p0i8.p0i8.i64(i8* %d, i8* %s, i64 1, i32 1, i1 false) |
| 50 | store i8 1, i8* %b, align 1 |
| 51 | ret void |
| 52 | } |
| 53 | |
| 54 | ; CHECK: Alias sets for function 'test4': |
| 55 | ; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values. |
| 56 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1) |
| 57 | ; CHECK-NOT: 1 Unknown instructions |
| 58 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref [volatile] Pointers: (i8* %s, 1), (i8* %d, 1) |
| 59 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1) |
| 60 | define void @test4(i8* %s, i8* %d) { |
| 61 | entry: |
| 62 | %a = alloca i8, align 1 |
| 63 | %b = alloca i8, align 1 |
| 64 | store i8 1, i8* %a, align 1 |
| 65 | call void @llvm.memmove.p0i8.p0i8.i64(i8* %d, i8* %s, i64 1, i32 1, i1 true) |
| 66 | store i8 1, i8* %b, align 1 |
| 67 | ret void |
| 68 | } |
| 69 | |
| 70 | ; CHECK: Alias sets for function 'test5': |
| 71 | ; CHECK: Alias Set Tracker: 2 alias sets for 2 pointer values. |
| 72 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod/Ref Pointers: (i8* %a, 1) |
| 73 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1) |
| 74 | define void @test5() { |
| 75 | entry: |
| 76 | %a = alloca i8, align 1 |
| 77 | %b = alloca i8, align 1 |
| 78 | store i8 1, i8* %a, align 1 |
| 79 | call void @llvm.memcpy.p0i8.p0i8.i64(i8* %b, i8* %a, i64 1, i32 1, i1 false) |
| 80 | store i8 1, i8* %b, align 1 |
| 81 | ret void |
| 82 | } |
| 83 | |
| 84 | ; CHECK: Alias sets for function 'test6': |
| 85 | ; CHECK: Alias Set Tracker: 2 alias sets for 2 pointer values. |
| 86 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod/Ref Pointers: (i8* %a, 1) |
| 87 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1) |
| 88 | define void @test6() { |
| 89 | entry: |
| 90 | %a = alloca i8, align 1 |
| 91 | %b = alloca i8, align 1 |
| 92 | store i8 1, i8* %a, align 1 |
| 93 | call void @llvm.memmove.p0i8.p0i8.i64(i8* %b, i8* %a, i64 1, i32 1, i1 false) |
| 94 | store i8 1, i8* %b, align 1 |
| 95 | ret void |
| 96 | } |
| 97 | |
| 98 | ; CHECK: Alias sets for function 'test7': |
| 99 | ; CHECK: Alias Set Tracker: 2 alias sets for 2 pointer values. |
| 100 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod/Ref Pointers: (i8* %a, 1) |
| 101 | ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod/Ref Pointers: (i8* %b, 1) |
| 102 | define void @test7() { |
| 103 | entry: |
| 104 | %a = alloca i8, align 1 |
| 105 | %b = alloca i8, align 1 |
| 106 | store i8 1, i8* %a, align 1 |
| 107 | call void @llvm.memcpy.p0i8.p0i8.i64(i8* %b, i8* %a, i64 1, i32 1, i1 false) |
| 108 | call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 1, i32 1, i1 false) |
| 109 | store i8 1, i8* %b, align 1 |
| 110 | ret void |
| 111 | } |
| 112 | |
| 113 | declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i32, i1) |
| 114 | declare void @llvm.memmove.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) |