xref: /llvm-project/llvm/test/Instrumentation/HWAddressSanitizer/globals-access.ll (revision 70e8cf0c31493071c50c8112c6e0c7903abf6ca6)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals all --global-value-regex "x" --version 4
2; RUN: opt < %s -S -passes=hwasan -mtriple=aarch64-linux-gnu -hwasan-globals=0 | FileCheck %s --check-prefixes=NOGLOB
3; RUN: opt < %s -S -passes=hwasan -mtriple=aarch64-linux-gnu -hwasan-globals=1 | FileCheck %s
4
5target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
6
7@x = dso_local global i32 0, align 4
8
9;.
10; NOGLOB: @x = dso_local global i32 0, align 4
11;.
12; CHECK: @x = alias i32, inttoptr (i64 add (i64 ptrtoint (ptr @x.hwasan to i64), i64 5260204364768739328) to ptr)
13;.
14define dso_local noundef i32 @_Z3tmpv() sanitize_hwaddress {
15; NOGLOB-LABEL: define dso_local noundef i32 @_Z3tmpv(
16; NOGLOB-SAME: ) #[[ATTR0:[0-9]+]] {
17; NOGLOB-NEXT:  entry:
18; NOGLOB-NEXT:    [[TMP0:%.*]] = load i32, ptr @x, align 4
19; NOGLOB-NEXT:    ret i32 [[TMP0]]
20;
21; CHECK-LABEL: define dso_local noundef i32 @_Z3tmpv(
22; CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
23; CHECK-NEXT:  entry:
24; CHECK-NEXT:    [[TMP12:%.*]] = load i64, ptr @__hwasan_tls, align 8
25; CHECK-NEXT:    [[TMP1:%.*]] = or i64 [[TMP12]], 4294967295
26; CHECK-NEXT:    [[HWASAN_SHADOW:%.*]] = add i64 [[TMP1]], 1
27; CHECK-NEXT:    [[TMP2:%.*]] = inttoptr i64 [[HWASAN_SHADOW]] to ptr
28; CHECK-NEXT:    [[TMP3:%.*]] = lshr i64 ptrtoint (ptr @x to i64), 56
29; CHECK-NEXT:    [[TMP4:%.*]] = trunc i64 [[TMP3]] to i8
30; CHECK-NEXT:    [[TMP5:%.*]] = and i64 ptrtoint (ptr @x to i64), 72057594037927935
31; CHECK-NEXT:    [[TMP6:%.*]] = lshr i64 [[TMP5]], 4
32; CHECK-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[TMP2]], i64 [[TMP6]]
33; CHECK-NEXT:    [[TMP8:%.*]] = load i8, ptr [[TMP7]], align 1
34; CHECK-NEXT:    [[TMP9:%.*]] = icmp ne i8 [[TMP4]], [[TMP8]]
35; CHECK-NEXT:    br i1 [[TMP9]], label [[TMP10:%.*]], label [[TMP11:%.*]], !prof [[PROF2:![0-9]+]]
36; CHECK:       10:
37; CHECK-NEXT:    call void @llvm.hwasan.check.memaccess.shortgranules(ptr [[TMP2]], ptr @x, i32 2)
38; CHECK-NEXT:    br label [[TMP11]]
39; CHECK:       11:
40; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr @x, align 4
41; CHECK-NEXT:    ret i32 [[TMP0]]
42;
43entry:
44  %0 = load i32, ptr @x, align 4
45  ret i32 %0
46}
47