| Chad Rosier | 232e29e | 2016-07-06 21:20:47 +0000 | [diff] [blame] | 1 | ; RUN: opt -basicaa -print-memoryssa -verify-memoryssa -analyze < %s 2>&1 | FileCheck %s |
| Geoff Berry | b96d3b2 | 2016-06-01 21:30:40 +0000 | [diff] [blame] | 2 | ; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>,verify<memoryssa>' -disable-output < %s 2>&1 | FileCheck %s |
| George Burgess IV | e1100f5 | 2016-02-02 22:46:49 +0000 | [diff] [blame] | 3 | ; |
| 4 | ; Test that various function attributes give us sane results. |
| 5 | |
| 6 | @g = external global i32 |
| 7 | |
| 8 | declare void @readonlyFunction() readonly |
| 9 | declare void @noattrsFunction() |
| 10 | |
| 11 | define void @readonlyAttr() { |
| 12 | ; CHECK: 1 = MemoryDef(liveOnEntry) |
| 13 | ; CHECK-NEXT: store i32 0 |
| 14 | store i32 0, i32* @g, align 4 |
| 15 | |
| 16 | %1 = alloca i32, align 4 |
| 17 | ; CHECK: 2 = MemoryDef(1) |
| 18 | ; CHECK-NEXT: store i32 0 |
| 19 | store i32 0, i32* %1, align 4 |
| 20 | |
| 21 | ; CHECK: MemoryUse(1) |
| 22 | ; CHECK-NEXT: call void @readonlyFunction() |
| 23 | call void @readonlyFunction() |
| 24 | |
| 25 | ; CHECK: MemoryUse(1) |
| 26 | ; CHECK-NEXT: call void @noattrsFunction() # |
| 27 | ; Assume that #N is readonly |
| 28 | call void @noattrsFunction() readonly |
| 29 | |
| 30 | ; Sanity check that noattrsFunction is otherwise a MemoryDef |
| 31 | ; CHECK: 3 = MemoryDef(2) |
| 32 | ; CHECK-NEXT: call void @noattrsFunction() |
| 33 | call void @noattrsFunction() |
| 34 | ret void |
| 35 | } |
| 36 | |
| 37 | declare void @argMemOnly(i32*) argmemonly |
| 38 | |
| 39 | define void @inaccessableOnlyAttr() { |
| 40 | %1 = alloca i32, align 4 |
| 41 | ; CHECK: 1 = MemoryDef(liveOnEntry) |
| 42 | ; CHECK-NEXT: store i32 0 |
| 43 | store i32 0, i32* %1, align 4 |
| 44 | |
| 45 | ; CHECK: 2 = MemoryDef(1) |
| 46 | ; CHECK-NEXT: store i32 0 |
| 47 | store i32 0, i32* @g, align 4 |
| 48 | |
| 49 | ; CHECK: MemoryUse(1) |
| 50 | ; CHECK-NEXT: call void @argMemOnly(i32* %1) # |
| 51 | ; Assume that #N is readonly |
| 52 | call void @argMemOnly(i32* %1) readonly |
| 53 | |
| 54 | ; CHECK: 3 = MemoryDef(2) |
| 55 | ; CHECK-NEXT: call void @argMemOnly(i32* %1) |
| 56 | call void @argMemOnly(i32* %1) |
| 57 | |
| 58 | ret void |
| 59 | } |