1; RUN: llc < %s | FileCheck %s
2
3target triple = "aarch64--linux-android"
4
5define i8* @f1(i8* %x0, i8* %x1) {
6  ; CHECK: f1:
7  ; CHECK: str x30, [sp, #-16]!
8  ; CHECK-NEXT: .cfi_def_cfa_offset 16
9  ; CHECK-NEXT: .cfi_offset w30, -16
10  ; CHECK-NEXT: mov x9, x0
11  ; CHECK-NEXT: bl __hwasan_check_x1_1
12  ; CHECK-NEXT: mov x0, x1
13  ; CHECK-NEXT: ldr x30, [sp], #16
14  ; CHECK-NEXT: ret
15  call void @llvm.hwasan.check.memaccess(i8* %x0, i8* %x1, i32 1)
16  ret i8* %x1
17}
18
19define i8* @f2(i8* %x0, i8* %x1) {
20  ; CHECK: f2:
21  ; CHECK: str x30, [sp, #-16]!
22  ; CHECK-NEXT: .cfi_def_cfa_offset 16
23  ; CHECK-NEXT: .cfi_offset w30, -16
24  ; CHECK-NEXT: mov x9, x1
25  ; CHECK-NEXT: bl __hwasan_check_x0_2_short
26  ; CHECK-NEXT: ldr x30, [sp], #16
27  ; CHECK-NEXT: ret
28  call void @llvm.hwasan.check.memaccess.shortgranules(i8* %x1, i8* %x0, i32 2)
29  ret i8* %x0
30}
31
32declare void @llvm.hwasan.check.memaccess(i8*, i8*, i32)
33declare void @llvm.hwasan.check.memaccess.shortgranules(i8*, i8*, i32)
34
35; CHECK:      .section .text.hot,"axG",@progbits,__hwasan_check_x0_2_short,comdat
36; CHECK-NEXT: .type __hwasan_check_x0_2_short,@function
37; CHECK-NEXT: .weak __hwasan_check_x0_2_short
38; CHECK-NEXT: .hidden __hwasan_check_x0_2_short
39; CHECK-NEXT: __hwasan_check_x0_2_short:
40; CHECK-NEXT: ubfx x16, x0, #4, #52
41; CHECK-NEXT: ldrb w16, [x9, x16]
42; CHECK-NEXT: cmp x16, x0, lsr #56
43; CHECK-NEXT: b.ne .Ltmp0
44; CHECK-NEXT: .Ltmp1:
45; CHECK-NEXT: ret
46; CHECK-NEXT: .Ltmp0:
47; CHECK-NEXT: cmp w16, #15
48; CHECK-NEXT: b.hi .Ltmp2
49; CHECK-NEXT: and x17, x0, #0xf
50; CHECK-NEXT: add x17, x17, #3
51; CHECK-NEXT: cmp w16, w17
52; CHECK-NEXT: b.ls .Ltmp2
53; CHECK-NEXT: orr x16, x0, #0xf
54; CHECK-NEXT: ldrb w16, [x16]
55; CHECK-NEXT: cmp x16, x0, lsr #56
56; CHECK-NEXT: b.eq .Ltmp1
57; CHECK-NEXT: .Ltmp2:
58; CHECK-NEXT: stp x0, x1, [sp, #-256]!
59; CHECK-NEXT: stp x29, x30, [sp, #232]
60; CHECK-NEXT: mov x1, #2
61; CHECK-NEXT: adrp  x16, :got:__hwasan_tag_mismatch_v2
62; CHECK-NEXT: ldr x16, [x16, :got_lo12:__hwasan_tag_mismatch_v2]
63; CHECK-NEXT: br  x16
64
65
66; CHECK:      .section .text.hot,"axG",@progbits,__hwasan_check_x1_1,comdat
67; CHECK-NEXT: .type __hwasan_check_x1_1,@function
68; CHECK-NEXT: .weak __hwasan_check_x1_1
69; CHECK-NEXT: .hidden __hwasan_check_x1_1
70; CHECK-NEXT: __hwasan_check_x1_1:
71; CHECK-NEXT: ubfx x16, x1, #4, #52
72; CHECK-NEXT: ldrb w16, [x9, x16]
73; CHECK-NEXT: cmp x16, x1, lsr #56
74; CHECK-NEXT: b.ne .Ltmp3
75; CHECK-NEXT: .Ltmp4:
76; CHECK-NEXT: ret
77; CHECK-NEXT: .Ltmp3:
78; CHECK-NEXT: stp x0, x1, [sp, #-256]!
79; CHECK-NEXT: stp x29, x30, [sp, #232]
80; CHECK-NEXT: mov x0, x1
81; CHECK-NEXT: mov x1, #1
82; CHECK-NEXT: adrp  x16, :got:__hwasan_tag_mismatch
83; CHECK-NEXT: ldr x16, [x16, :got_lo12:__hwasan_tag_mismatch]
84; CHECK-NEXT: br  x16
85