1; Test KHWASan instrumentation.
2;
3; RUN: opt < %s -hwasan -hwasan-kernel=1 -S | FileCheck %s --allow-empty --check-prefixes=INIT
4; RUN: opt < %s -hwasan -hwasan-kernel=1 -S | FileCheck %s  --check-prefixes=CHECK,NOOFFSET,MATCH-ALL
5; RUN: opt < %s -hwasan -hwasan-kernel=1 -hwasan-mapping-offset=12345678 -S | FileCheck %s  --check-prefixes=CHECK,OFFSET,MATCH-ALL
6; RUN: opt < %s -hwasan -hwasan-kernel=1 -hwasan-recover=0 -S | FileCheck %s  --check-prefixes=CHECK,NOOFFSET,ABORT,MATCH-ALL
7; RUN: opt < %s -hwasan -hwasan-kernel=1 -hwasan-recover=1 -S | FileCheck %s  --check-prefixes=CHECK,NOOFFSET,RECOVER,MATCH-ALL
8; RUN: opt < %s -hwasan -hwasan-kernel=1 -hwasan-recover=1 -hwasan-match-all-tag=-1 -S | FileCheck %s  --check-prefixes=CHECK,NOOFFSET,RECOVER,NO-MATCH-ALL
9
10target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
11target triple = "aarch64--linux-android"
12
13define i8 @test_load(i8* %a) sanitize_hwaddress {
14; CHECK-LABEL: @test_load(
15; CHECK: %[[A:[^ ]*]] = ptrtoint i8* %a to i64
16; CHECK: %[[B:[^ ]*]] = lshr i64 %[[A]], 56
17; CHECK: %[[PTRTAG:[^ ]*]] = trunc i64 %[[B]] to i8
18; CHECK: %[[C:[^ ]*]] = or i64 %[[A]], -72057594037927936
19; CHECK: %[[D:[^ ]*]] = lshr i64 %[[C]], 4
20
21; NOOFFSET: %[[E:[^ ]*]] = inttoptr i64 %[[D]] to i8*
22
23; OFFSET: %[[D1:[^ ]*]] = add i64 %[[D]], 12345678
24; OFFSET: %[[E:[^ ]*]] = inttoptr i64 %[[D1]] to i8*
25
26; CHECK: %[[MEMTAG:[^ ]*]] = load i8, i8* %[[E]]
27; CHECK: %[[F:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[MEMTAG]]
28
29; MATCH-ALL: %[[G:[^ ]*]] = icmp ne i8 %[[PTRTAG]], -1
30; MATCH-ALL: %[[H:[^ ]*]] = and i1 %[[F]], %[[G]]
31; MATCH-ALL: br i1 %[[H]], label {{.*}}, label {{.*}}, !prof {{.*}}
32
33; NO-MATCH-ALL: br i1 %[[F]], label {{.*}}, label {{.*}}, !prof {{.*}}
34
35; ABORT: call void asm sideeffect "brk #2304", "{x0}"(i64 %[[A]])
36; ABORT: unreachable
37; RECOVER: call void asm sideeffect "brk #2336", "{x0}"(i64 %[[A]])
38; RECOVER: br label
39
40; CHECK: %[[G:[^ ]*]] = load i8, i8* %a, align 4
41; CHECK: ret i8 %[[G]]
42
43entry:
44  %b = load i8, i8* %a, align 4
45  ret i8 %b
46}
47
48; INIT-NOT: call void @__hwasan_init
49