1; Test handling of llvm.lifetime intrinsics with C++ exceptions. 2; RUN: opt < %s -passes=asan -asan-use-after-scope -asan-use-after-return=never -S | FileCheck %s 3 4target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 5target triple = "x86_64-unknown-linux-gnu" 6 7%struct.ABC = type { i32 } 8 9$_ZN3ABCD2Ev = comdat any 10$_ZTS3ABC = comdat any 11$_ZTI3ABC = comdat any 12 13@_ZTVN10__cxxabiv117__class_type_infoE = external global ptr 14@_ZTS3ABC = linkonce_odr constant [5 x i8] c"3ABC\00", comdat 15@_ZTI3ABC = linkonce_odr constant { ptr, ptr } { ptr getelementptr inbounds (ptr, ptr @_ZTVN10__cxxabiv117__class_type_infoE, i64 2), ptr @_ZTS3ABC }, comdat 16 17define void @Throw() sanitize_address personality ptr @__gxx_personality_v0 { 18; CHECK-LABEL: define void @Throw() 19entry: 20 %x = alloca %struct.ABC, align 4 21 22 ; Poison memory in prologue: F1F1F1F1F8F3F3F3 23 ; CHECK: store i64 -868082052615769615, ptr %{{[0-9]+}} 24 25 call void @llvm.lifetime.start.p0(i64 4, ptr %x) 26 ; CHECK: store i8 4, ptr %{{[0-9]+}} 27 ; CHECK-NEXT: @llvm.lifetime.start 28 29 %exception = call ptr @__cxa_allocate_exception(i64 4) 30 invoke void @__cxa_throw(ptr %exception, ptr @_ZTI3ABC, ptr @_ZN3ABCD2Ev) noreturn 31 to label %unreachable unwind label %lpad 32 ; CHECK: call void @__asan_handle_no_return 33 ; CHECK-NEXT: @__cxa_throw 34 35lpad: 36 %0 = landingpad { ptr, i32 } 37 cleanup 38 call void @_ZN3ABCD2Ev(ptr nonnull %x) 39 call void @llvm.lifetime.end.p0(i64 4, ptr %x) 40 ; CHECK: store i8 -8, ptr %{{[0-9]+}} 41 ; CHECK-NEXT: @llvm.lifetime.end 42 43 resume { ptr, i32 } %0 44 ; CHECK: store i64 0, ptr %{{[0-9]+}} 45 ; CHECK-NEXT: resume 46 47unreachable: 48 unreachable 49} 50 51%rtti.TypeDescriptor9 = type { ptr, ptr, [10 x i8] } 52%eh.CatchableType = type { i32, i32, i32, i32, i32, i32, i32 } 53%eh.CatchableTypeArray.1 = type { i32, [1 x i32] } 54%eh.ThrowInfo = type { i32, i32, i32, i32 } 55 56$"\01??1ABC@@QEAA@XZ" = comdat any 57$"\01??_R0?AUABC@@@8" = comdat any 58$"_CT??_R0?AUABC@@@84" = comdat any 59$"_CTA1?AUABC@@" = comdat any 60$"_TI1?AUABC@@" = comdat any 61 62@"\01??_7type_info@@6B@" = external constant ptr 63@"\01??_R0?AUABC@@@8" = linkonce_odr global %rtti.TypeDescriptor9 { ptr @"\01??_7type_info@@6B@", ptr null, [10 x i8] c".?AUABC@@\00" }, comdat 64@__ImageBase = external constant i8 65@"_CT??_R0?AUABC@@@84" = linkonce_odr unnamed_addr constant %eh.CatchableType { i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (ptr @"\01??_R0?AUABC@@@8" to i64), i64 ptrtoint (ptr @__ImageBase to i64)) to i32), i32 0, i32 -1, i32 0, i32 4, i32 0 }, section ".xdata", comdat 66@"_CTA1?AUABC@@" = linkonce_odr unnamed_addr constant %eh.CatchableTypeArray.1 { i32 1, [1 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (ptr @"_CT??_R0?AUABC@@@84" to i64), i64 ptrtoint (ptr @__ImageBase to i64)) to i32)] }, section ".xdata", comdat 67@"_TI1?AUABC@@" = linkonce_odr unnamed_addr constant %eh.ThrowInfo { i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (ptr @"\01??1ABC@@QEAA@XZ" to i64), i64 ptrtoint (ptr @__ImageBase to i64)) to i32), i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (ptr @"_CTA1?AUABC@@" to i64), i64 ptrtoint (ptr @__ImageBase to i64)) to i32) }, section ".xdata", comdat 68 69define void @ThrowWin() sanitize_address personality ptr @__CxxFrameHandler3 { 70; CHECK-LABEL: define void @ThrowWin() 71entry: 72 %x = alloca %struct.ABC, align 4 73 %tmp = alloca %struct.ABC, align 4 74 75 ; Poison memory in prologue: F1F1F1F1F8F304F2 76 ; CHECK: store i64 -935355671561244175, ptr %{{[0-9]+}} 77 78 call void @llvm.lifetime.start.p0(i64 4, ptr %x) 79 ; CHECK: store i8 4, ptr %{{[0-9]+}} 80 ; CHECK-NEXT: @llvm.lifetime.start 81 82 invoke void @_CxxThrowException(ptr %tmp, ptr nonnull @"_TI1?AUABC@@") noreturn 83 to label %unreachable unwind label %ehcleanup 84 ; CHECK: call void @__asan_handle_no_return 85 ; CHECK-NEXT: @_CxxThrowException 86 87ehcleanup: 88 %0 = cleanuppad within none [] 89 call void @"\01??1ABC@@QEAA@XZ"(ptr nonnull %x) [ "funclet"(token %0) ] 90 call void @llvm.lifetime.end.p0(i64 4, ptr %x) 91 ; CHECK: store i8 -8, ptr %{{[0-9]+}} 92 ; CHECK-NEXT: @llvm.lifetime.end 93 94 cleanupret from %0 unwind to caller 95 ; CHECK: store i64 0, ptr %{{[0-9]+}} 96 ; CHECK-NEXT: cleanupret 97 98unreachable: 99 unreachable 100} 101 102 103declare i32 @__gxx_personality_v0(...) 104declare void @llvm.lifetime.start.p0(i64, ptr nocapture) 105declare void @llvm.lifetime.end.p0(i64, ptr nocapture) 106declare void @__cxa_throw(ptr, ptr, ptr) local_unnamed_addr 107declare ptr @__cxa_allocate_exception(i64) local_unnamed_addr 108declare void @_ZN3ABCD2Ev(ptr %this) unnamed_addr 109declare void @"\01??1ABC@@QEAA@XZ"(ptr %this) 110declare void @_CxxThrowException(ptr, ptr) 111declare i32 @__CxxFrameHandler3(...) 112