1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2 2; RUN: opt < %s -passes=hwasan -S | FileCheck %s 3 4target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" 5target triple = "x86_64-unknown-linux-gnu" 6 7declare void @use(ptr, ptr) 8 9define void @test_alloca() sanitize_hwaddress { 10; CHECK-LABEL: define void @test_alloca 11; CHECK-SAME: () #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk { 12; CHECK-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr null) 13; CHECK-NEXT: [[TMP1:%.*]] = call ptr @llvm.frameaddress.p0(i32 0) 14; CHECK-NEXT: [[TMP2:%.*]] = ptrtoint ptr [[TMP1]] to i64 15; CHECK-NEXT: [[TMP3:%.*]] = lshr i64 [[TMP2]], 20 16; CHECK-NEXT: [[TMP4:%.*]] = xor i64 [[TMP2]], [[TMP3]] 17; CHECK-NEXT: [[HWASAN_STACK_BASE_TAG:%.*]] = and i64 [[TMP4]], 63 18; CHECK-NEXT: [[TMP5:%.*]] = lshr i64 [[TMP2]], 57 19; CHECK-NEXT: [[HWASAN_UAR_TAG:%.*]] = and i64 [[TMP5]], 63 20; CHECK-NEXT: [[X:%.*]] = alloca { [4 x i8], [12 x i8] }, align 16 21; CHECK-NEXT: [[TMP6:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0 22; CHECK-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[X]] to i64 23; CHECK-NEXT: [[TMP8:%.*]] = and i64 [[TMP7]], -9079256848778919937 24; CHECK-NEXT: [[TMP9:%.*]] = shl i64 [[TMP6]], 57 25; CHECK-NEXT: [[TMP10:%.*]] = or i64 [[TMP8]], [[TMP9]] 26; CHECK-NEXT: [[X_HWASAN:%.*]] = inttoptr i64 [[TMP10]] to ptr 27; CHECK-NEXT: [[TMP11:%.*]] = trunc i64 [[TMP6]] to i8 28; CHECK-NEXT: call void @__hwasan_tag_memory(ptr [[X]], i8 [[TMP11]], i64 16) 29; CHECK-NEXT: [[Y:%.*]] = alloca i8, i64 16, align 16 30; CHECK-NEXT: [[TMP12:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 1 31; CHECK-NEXT: [[TMP13:%.*]] = ptrtoint ptr [[Y]] to i64 32; CHECK-NEXT: [[TMP14:%.*]] = and i64 [[TMP13]], -9079256848778919937 33; CHECK-NEXT: [[TMP15:%.*]] = shl i64 [[TMP12]], 57 34; CHECK-NEXT: [[TMP16:%.*]] = or i64 [[TMP14]], [[TMP15]] 35; CHECK-NEXT: [[Y_HWASAN:%.*]] = inttoptr i64 [[TMP16]] to ptr 36; CHECK-NEXT: [[TMP17:%.*]] = trunc i64 [[TMP12]] to i8 37; CHECK-NEXT: call void @__hwasan_tag_memory(ptr [[Y]], i8 [[TMP17]], i64 16) 38; CHECK-NEXT: call void @use(ptr [[X_HWASAN]], ptr [[Y_HWASAN]]) 39; CHECK-NEXT: [[TMP18:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8 40; CHECK-NEXT: call void @__hwasan_tag_memory(ptr [[X]], i8 [[TMP18]], i64 16) 41; CHECK-NEXT: [[TMP19:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8 42; CHECK-NEXT: call void @__hwasan_tag_memory(ptr [[Y]], i8 [[TMP19]], i64 16) 43; CHECK-NEXT: ret void 44; 45 %x = alloca i8, i64 4 46 %y = alloca i8, i64 16 47 call void @use(ptr %x, ptr %y) 48 ret void 49} 50