diff --git a/llvm/test/Instrumentation/HWAddressSanitizer/globals-access.ll b/llvm/test/Instrumentation/HWAddressSanitizer/globals-access.ll new file mode 100644 index 0000000000000..c83911f60149a --- /dev/null +++ b/llvm/test/Instrumentation/HWAddressSanitizer/globals-access.ll @@ -0,0 +1,60 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals all --global-value-regex "x" --version 4 +; RUN: opt < %s -S -passes=hwasan -mtriple=aarch64 -hwasan-globals=0 | FileCheck %s --check-prefixes=NOGLOB +; RUN: opt < %s -S -passes=hwasan -mtriple=aarch64 -hwasan-globals=1 | FileCheck %s + +@x = dso_local global i32 0, align 4 + +;. +; NOGLOB: @x = dso_local global i32 0, align 4 +;. +; CHECK: @x = alias i32, inttoptr (i64 add (i64 ptrtoint (ptr @x.hwasan to i64), i64 5260204364768739328) to ptr) +;. +define dso_local noundef i32 @_Z3tmpv() sanitize_hwaddress { +; NOGLOB-LABEL: define dso_local noundef i32 @_Z3tmpv( +; NOGLOB-SAME: ) #[[ATTR0:[0-9]+]] { +; NOGLOB-NEXT: entry: +; NOGLOB-NEXT: [[TMP12:%.*]] = load i64, ptr @__hwasan_tls, align 8 +; NOGLOB-NEXT: [[TMP1:%.*]] = or i64 [[TMP12]], 4294967295 +; NOGLOB-NEXT: [[HWASAN_SHADOW:%.*]] = add i64 [[TMP1]], 1 +; NOGLOB-NEXT: [[TMP2:%.*]] = inttoptr i64 [[HWASAN_SHADOW]] to ptr +; NOGLOB-NEXT: [[TMP3:%.*]] = lshr i64 ptrtoint (ptr @x to i64), 56 +; NOGLOB-NEXT: [[TMP4:%.*]] = trunc i64 [[TMP3]] to i8 +; NOGLOB-NEXT: [[TMP5:%.*]] = and i64 ptrtoint (ptr @x to i64), 72057594037927935 +; NOGLOB-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP5]], 4 +; NOGLOB-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[TMP2]], i64 [[TMP6]] +; NOGLOB-NEXT: [[TMP8:%.*]] = load i8, ptr [[TMP7]], align 1 +; NOGLOB-NEXT: [[TMP9:%.*]] = icmp ne i8 [[TMP4]], [[TMP8]] +; NOGLOB-NEXT: br i1 [[TMP9]], label [[TMP10:%.*]], label [[TMP11:%.*]], !prof [[PROF1:![0-9]+]] +; NOGLOB: 10: +; NOGLOB-NEXT: call void @llvm.hwasan.check.memaccess.shortgranules(ptr [[TMP2]], ptr @x, i32 2) +; NOGLOB-NEXT: br label [[TMP11]] +; NOGLOB: 11: +; NOGLOB-NEXT: [[TMP0:%.*]] = load i32, ptr @x, align 4 +; NOGLOB-NEXT: ret i32 [[TMP0]] +; +; CHECK-LABEL: define dso_local noundef i32 @_Z3tmpv( +; CHECK-SAME: ) #[[ATTR0:[0-9]+]] { +; CHECK-NEXT: entry: +; CHECK-NEXT: [[TMP12:%.*]] = load i64, ptr @__hwasan_tls, align 8 +; CHECK-NEXT: [[TMP1:%.*]] = or i64 [[TMP12]], 4294967295 +; CHECK-NEXT: [[HWASAN_SHADOW:%.*]] = add i64 [[TMP1]], 1 +; CHECK-NEXT: [[TMP2:%.*]] = inttoptr i64 [[HWASAN_SHADOW]] to ptr +; CHECK-NEXT: [[TMP3:%.*]] = lshr i64 ptrtoint (ptr @x to i64), 56 +; CHECK-NEXT: [[TMP4:%.*]] = trunc i64 [[TMP3]] to i8 +; CHECK-NEXT: [[TMP5:%.*]] = and i64 ptrtoint (ptr @x to i64), 72057594037927935 +; CHECK-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP5]], 4 +; CHECK-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[TMP2]], i64 [[TMP6]] +; CHECK-NEXT: [[TMP8:%.*]] = load i8, ptr [[TMP7]], align 1 +; CHECK-NEXT: [[TMP9:%.*]] = icmp ne i8 [[TMP4]], [[TMP8]] +; CHECK-NEXT: br i1 [[TMP9]], label [[TMP10:%.*]], label [[TMP11:%.*]], !prof [[PROF2:![0-9]+]] +; CHECK: 10: +; CHECK-NEXT: call void @llvm.hwasan.check.memaccess.shortgranules(ptr [[TMP2]], ptr @x, i32 2) +; CHECK-NEXT: br label [[TMP11]] +; CHECK: 11: +; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr @x, align 4 +; CHECK-NEXT: ret i32 [[TMP0]] +; +entry: + %0 = load i32, ptr @x, align 4 + ret i32 %0 +}