| ; RUN: opt -basic-aa -print-alias-sets -S -o - < %s 2>&1 | FileCheck %s |
| |
| @s = global i8 1, align 1 |
| @d = global i8 2, align 1 |
| |
| ; CHECK: Alias sets for function 'test_known_size': |
| ; CHECK: Alias Set Tracker: 1 alias sets for 1 pointer values. |
| ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %d, LocationSize::precise(1)) |
| define void @test_known_size(i8* noalias %d) { |
| entry: |
| call void @llvm.memset.p0i8.i64(i8* align 1 %d, i8 0, i64 1, i1 false) |
| ret void |
| } |
| |
| ; CHECK: Alias sets for function 'test_unknown_size': |
| ; CHECK: Alias Set Tracker: 1 alias sets for 1 pointer values. |
| ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %d, unknown after) |
| define void @test_unknown_size(i8* noalias %d, i64 %len) { |
| entry: |
| call void @llvm.memset.p0i8.i64(i8* align 1 %d, i8 0, i64 %len, i1 false) |
| ret void |
| } |
| |
| |
| ; CHECK: Alias sets for function 'test_atomic_known_size': |
| ; CHECK: Alias Set Tracker: 1 alias sets for 1 pointer values. |
| ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %d, LocationSize::precise(1)) |
| define void @test_atomic_known_size(i8* noalias %d) { |
| entry: |
| call void @llvm.memset.element.unordered.atomic.p0i8.i32(i8* align 1 %d, i8 0, i64 1, i32 1) |
| ret void |
| } |
| |
| ; CHECK: Alias sets for function 'test_atomic_unknown_size': |
| ; CHECK: Alias Set Tracker: 1 alias sets for 1 pointer values. |
| ; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %d, unknown after) |
| define void @test_atomic_unknown_size(i8* noalias %d, i64 %len) { |
| entry: |
| call void @llvm.memset.element.unordered.atomic.p0i8.i32(i8* align 1 %d, i8 0, i64 %len, i32 1) |
| ret void |
| } |
| |
| declare void @llvm.memset.p0i8.i64(i8* %dest, i8 %val, |
| i64 %len, i1 %isvolatile) |
| declare void @llvm.memset.element.unordered.atomic.p0i8.i32(i8* %dest, |
| i8 %value, |
| i64 %len, |
| i32 %element_size) |
