1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2 2; Test allocas with multiple lifetime ends, as frequently seen for exception 3; handling. 4; 5; RUN: opt -passes=hwasan -hwasan-use-after-scope -hwasan-inline-fast-path-checks=0 -S -o - %s | FileCheck %s 6 7target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" 8target triple = "riscv64-unknown-linux" 9 10declare void @mayFail(ptr %x) sanitize_hwaddress 11declare void @onExcept(ptr %x) sanitize_hwaddress 12 13declare void @llvm.lifetime.start.p0(i64, ptr nocapture) nounwind 14declare void @llvm.lifetime.end.p0(i64, ptr nocapture) nounwind 15declare i32 @__gxx_personality_v0(...) 16 17define void @test() sanitize_hwaddress personality ptr @__gxx_personality_v0 { 18; CHECK-LABEL: define void @test 19; CHECK-SAME: () #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk.__gxx_personality_v0 { 20; CHECK-NEXT: entry: 21; CHECK-NEXT: [[TMP0:%.*]] = load i64, ptr @__hwasan_tls, align 8 22; CHECK-NEXT: [[TMP1:%.*]] = and i64 [[TMP0]], 72057594037927935 23; CHECK-NEXT: [[TMP2:%.*]] = ashr i64 [[TMP0]], 3 24; CHECK-NEXT: [[TMP3:%.*]] = call ptr @llvm.frameaddress.p0(i32 0) 25; CHECK-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[TMP3]] to i64 26; CHECK-NEXT: [[TMP5:%.*]] = shl i64 [[TMP4]], 44 27; CHECK-NEXT: [[TMP6:%.*]] = or i64 ptrtoint (ptr @test to i64), [[TMP5]] 28; CHECK-NEXT: [[TMP7:%.*]] = inttoptr i64 [[TMP1]] to ptr 29; CHECK-NEXT: store i64 [[TMP6]], ptr [[TMP7]], align 8 30; CHECK-NEXT: [[TMP8:%.*]] = ashr i64 [[TMP0]], 56 31; CHECK-NEXT: [[TMP9:%.*]] = shl nuw nsw i64 [[TMP8]], 12 32; CHECK-NEXT: [[TMP10:%.*]] = xor i64 [[TMP9]], -1 33; CHECK-NEXT: [[TMP11:%.*]] = add i64 [[TMP0]], 8 34; CHECK-NEXT: [[TMP12:%.*]] = and i64 [[TMP11]], [[TMP10]] 35; CHECK-NEXT: store i64 [[TMP12]], ptr @__hwasan_tls, align 8 36; CHECK-NEXT: [[TMP13:%.*]] = or i64 [[TMP1]], 4294967295 37; CHECK-NEXT: [[HWASAN_SHADOW:%.*]] = add i64 [[TMP13]], 1 38; CHECK-NEXT: [[TMP14:%.*]] = inttoptr i64 [[HWASAN_SHADOW]] to ptr 39; CHECK-NEXT: [[HWASAN_UAR_TAG:%.*]] = lshr i64 [[TMP4]], 56 40; CHECK-NEXT: [[X:%.*]] = alloca { i32, [12 x i8] }, align 16 41; CHECK-NEXT: [[TMP15:%.*]] = xor i64 [[TMP2]], 0 42; CHECK-NEXT: [[TMP16:%.*]] = ptrtoint ptr [[X]] to i64 43; CHECK-NEXT: [[TMP17:%.*]] = and i64 [[TMP16]], 72057594037927935 44; CHECK-NEXT: [[TMP18:%.*]] = shl i64 [[TMP15]], 56 45; CHECK-NEXT: [[TMP19:%.*]] = or i64 [[TMP17]], [[TMP18]] 46; CHECK-NEXT: [[X_HWASAN:%.*]] = inttoptr i64 [[TMP19]] to ptr 47; CHECK-NEXT: [[EXN_SLOT:%.*]] = alloca ptr, align 8 48; CHECK-NEXT: [[EHSELECTOR_SLOT:%.*]] = alloca i32, align 4 49; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 16, ptr [[X]]) 50; CHECK-NEXT: [[TMP20:%.*]] = trunc i64 [[TMP15]] to i8 51; CHECK-NEXT: [[TMP21:%.*]] = ptrtoint ptr [[X]] to i64 52; CHECK-NEXT: [[TMP22:%.*]] = and i64 [[TMP21]], 72057594037927935 53; CHECK-NEXT: [[TMP23:%.*]] = lshr i64 [[TMP22]], 4 54; CHECK-NEXT: [[TMP24:%.*]] = getelementptr i8, ptr [[TMP14]], i64 [[TMP23]] 55; CHECK-NEXT: [[TMP25:%.*]] = getelementptr i8, ptr [[TMP24]], i32 0 56; CHECK-NEXT: store i8 4, ptr [[TMP25]], align 1 57; CHECK-NEXT: [[TMP26:%.*]] = getelementptr i8, ptr [[X]], i32 15 58; CHECK-NEXT: store i8 [[TMP20]], ptr [[TMP26]], align 1 59; CHECK-NEXT: invoke void @mayFail(ptr [[X_HWASAN]]) 60; CHECK-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[LPAD:%.*]] 61; CHECK: invoke.cont: 62; CHECK-NEXT: [[TMP27:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8 63; CHECK-NEXT: [[TMP28:%.*]] = ptrtoint ptr [[X]] to i64 64; CHECK-NEXT: [[TMP29:%.*]] = and i64 [[TMP28]], 72057594037927935 65; CHECK-NEXT: [[TMP30:%.*]] = lshr i64 [[TMP29]], 4 66; CHECK-NEXT: [[TMP31:%.*]] = getelementptr i8, ptr [[TMP14]], i64 [[TMP30]] 67; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[TMP31]], i8 [[TMP27]], i64 1, i1 false) 68; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 16, ptr [[X]]) 69; CHECK-NEXT: ret void 70; CHECK: lpad: 71; CHECK-NEXT: [[TMP32:%.*]] = landingpad { ptr, i32 } 72; CHECK-NEXT: cleanup 73; CHECK-NEXT: [[TMP33:%.*]] = extractvalue { ptr, i32 } [[TMP32]], 0 74; CHECK-NEXT: call void @llvm.hwasan.check.memaccess.shortgranules(ptr [[TMP14]], ptr [[EXN_SLOT]], i32 19) 75; CHECK-NEXT: store ptr [[TMP33]], ptr [[EXN_SLOT]], align 8 76; CHECK-NEXT: [[TMP34:%.*]] = extractvalue { ptr, i32 } [[TMP32]], 1 77; CHECK-NEXT: call void @llvm.hwasan.check.memaccess.shortgranules(ptr [[TMP14]], ptr [[EHSELECTOR_SLOT]], i32 18) 78; CHECK-NEXT: store i32 [[TMP34]], ptr [[EHSELECTOR_SLOT]], align 4 79; CHECK-NEXT: call void @onExcept(ptr [[X_HWASAN]]) 80; CHECK-NEXT: [[TMP35:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8 81; CHECK-NEXT: [[TMP36:%.*]] = ptrtoint ptr [[X]] to i64 82; CHECK-NEXT: [[TMP37:%.*]] = and i64 [[TMP36]], 72057594037927935 83; CHECK-NEXT: [[TMP38:%.*]] = lshr i64 [[TMP37]], 4 84; CHECK-NEXT: [[TMP39:%.*]] = getelementptr i8, ptr [[TMP14]], i64 [[TMP38]] 85; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[TMP39]], i8 [[TMP35]], i64 1, i1 false) 86; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 16, ptr [[X]]) 87; CHECK-NEXT: br label [[EH_RESUME:%.*]] 88; CHECK: eh.resume: 89; CHECK-NEXT: call void @llvm.hwasan.check.memaccess.shortgranules(ptr [[TMP14]], ptr [[EXN_SLOT]], i32 3) 90; CHECK-NEXT: [[EXN:%.*]] = load ptr, ptr [[EXN_SLOT]], align 8 91; CHECK-NEXT: call void @llvm.hwasan.check.memaccess.shortgranules(ptr [[TMP14]], ptr [[EHSELECTOR_SLOT]], i32 2) 92; CHECK-NEXT: [[SEL:%.*]] = load i32, ptr [[EHSELECTOR_SLOT]], align 4 93; CHECK-NEXT: [[LPAD_VAL:%.*]] = insertvalue { ptr, i32 } undef, ptr [[EXN]], 0 94; CHECK-NEXT: [[LPAD_VAL1:%.*]] = insertvalue { ptr, i32 } [[LPAD_VAL]], i32 [[SEL]], 1 95; CHECK-NEXT: resume { ptr, i32 } [[LPAD_VAL1]] 96; 97entry: 98 %x = alloca i32, align 8 99 %exn.slot = alloca ptr, align 8 100 %ehselector.slot = alloca i32, align 4 101 call void @llvm.lifetime.start.p0(i64 8, ptr %x) 102 invoke void @mayFail(ptr %x) to label %invoke.cont unwind label %lpad 103 104invoke.cont: ; preds = %entry 105 106 call void @llvm.lifetime.end.p0(i64 8, ptr %x) 107 ret void 108 109lpad: ; preds = %entry 110 111 %0 = landingpad { ptr, i32 } 112 cleanup 113 %1 = extractvalue { ptr, i32 } %0, 0 114 store ptr %1, ptr %exn.slot, align 8 115 %2 = extractvalue { ptr, i32 } %0, 1 116 store i32 %2, ptr %ehselector.slot, align 4 117 call void @onExcept(ptr %x) #18 118 call void @llvm.lifetime.end.p0(i64 8, ptr %x) 119 br label %eh.resume 120 121eh.resume: ; preds = %lpad 122 %exn = load ptr, ptr %exn.slot, align 8 123 %sel = load i32, ptr %ehselector.slot, align 4 124 %lpad.val = insertvalue { ptr, i32 } undef, ptr %exn, 0 125 %lpad.val1 = insertvalue { ptr, i32 } %lpad.val, i32 %sel, 1 126 resume { ptr, i32 } %lpad.val1 127} 128