| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2 |
| ; RUN: opt < %s -passes=hwasan -S | FileCheck %s |
| |
| target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| declare void @use(ptr, ptr) |
| |
| define void @test_alloca() sanitize_hwaddress { |
| ; CHECK-LABEL: define void @test_alloca |
| ; CHECK-SAME: () #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk { |
| ; CHECK-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr null) |
| ; CHECK-NEXT: [[TMP1:%.*]] = call ptr @llvm.frameaddress.p0(i32 0) |
| ; CHECK-NEXT: [[TMP2:%.*]] = ptrtoint ptr [[TMP1]] to i64 |
| ; CHECK-NEXT: [[TMP3:%.*]] = lshr i64 [[TMP2]], 20 |
| ; CHECK-NEXT: [[TMP4:%.*]] = xor i64 [[TMP2]], [[TMP3]] |
| ; CHECK-NEXT: [[HWASAN_STACK_BASE_TAG:%.*]] = and i64 [[TMP4]], 63 |
| ; CHECK-NEXT: [[TMP5:%.*]] = lshr i64 [[TMP2]], 57 |
| ; CHECK-NEXT: [[HWASAN_UAR_TAG:%.*]] = and i64 [[TMP5]], 63 |
| ; CHECK-NEXT: [[X:%.*]] = alloca { [4 x i8], [12 x i8] }, align 16 |
| ; CHECK-NEXT: [[TMP6:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0 |
| ; CHECK-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[X]] to i64 |
| ; CHECK-NEXT: [[TMP8:%.*]] = and i64 [[TMP7]], -9079256848778919937 |
| ; CHECK-NEXT: [[TMP9:%.*]] = shl i64 [[TMP6]], 57 |
| ; CHECK-NEXT: [[TMP10:%.*]] = or i64 [[TMP8]], [[TMP9]] |
| ; CHECK-NEXT: [[X_HWASAN:%.*]] = inttoptr i64 [[TMP10]] to ptr |
| ; CHECK-NEXT: [[TMP11:%.*]] = trunc i64 [[TMP6]] to i8 |
| ; CHECK-NEXT: call void @__hwasan_tag_memory(ptr [[X]], i8 [[TMP11]], i64 16) |
| ; CHECK-NEXT: [[Y:%.*]] = alloca i8, i64 16, align 16 |
| ; CHECK-NEXT: [[TMP12:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 1 |
| ; CHECK-NEXT: [[TMP13:%.*]] = ptrtoint ptr [[Y]] to i64 |
| ; CHECK-NEXT: [[TMP14:%.*]] = and i64 [[TMP13]], -9079256848778919937 |
| ; CHECK-NEXT: [[TMP15:%.*]] = shl i64 [[TMP12]], 57 |
| ; CHECK-NEXT: [[TMP16:%.*]] = or i64 [[TMP14]], [[TMP15]] |
| ; CHECK-NEXT: [[Y_HWASAN:%.*]] = inttoptr i64 [[TMP16]] to ptr |
| ; CHECK-NEXT: [[TMP17:%.*]] = trunc i64 [[TMP12]] to i8 |
| ; CHECK-NEXT: call void @__hwasan_tag_memory(ptr [[Y]], i8 [[TMP17]], i64 16) |
| ; CHECK-NEXT: call void @use(ptr [[X_HWASAN]], ptr [[Y_HWASAN]]) |
| ; CHECK-NEXT: [[TMP18:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8 |
| ; CHECK-NEXT: call void @__hwasan_tag_memory(ptr [[X]], i8 [[TMP18]], i64 16) |
| ; CHECK-NEXT: [[TMP19:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8 |
| ; CHECK-NEXT: call void @__hwasan_tag_memory(ptr [[Y]], i8 [[TMP19]], i64 16) |
| ; CHECK-NEXT: ret void |
| ; |
| %x = alloca i8, i64 4 |
| %y = alloca i8, i64 16 |
| call void @use(ptr %x, ptr %y) |
| ret void |
| } |