| ; Test handling of llvm.lifetime intrinsics with C++ exceptions. |
| ; RUN: opt < %s -passes=asan -asan-use-after-scope -asan-use-after-return=never -S | FileCheck %s |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| %struct.ABC = type { i32 } |
| |
| $_ZN3ABCD2Ev = comdat any |
| $_ZTS3ABC = comdat any |
| $_ZTI3ABC = comdat any |
| |
| @_ZTVN10__cxxabiv117__class_type_infoE = external global ptr |
| @_ZTS3ABC = linkonce_odr constant [5 x i8] c"3ABC\00", comdat |
| @_ZTI3ABC = linkonce_odr constant { ptr, ptr } { ptr getelementptr inbounds (ptr, ptr @_ZTVN10__cxxabiv117__class_type_infoE, i64 2), ptr @_ZTS3ABC }, comdat |
| |
| define void @Throw() sanitize_address personality ptr @__gxx_personality_v0 { |
| ; CHECK-LABEL: define void @Throw() |
| entry: |
| %x = alloca %struct.ABC, align 4 |
| |
| ; Poison memory in prologue: F1F1F1F1F8F3F3F3 |
| ; CHECK: store i64 -868082052615769615, ptr %{{[0-9]+}} |
| |
| call void @llvm.lifetime.start.p0(i64 4, ptr %x) |
| ; CHECK: store i8 4, ptr %{{[0-9]+}} |
| ; CHECK-NEXT: @llvm.lifetime.start |
| |
| %exception = call ptr @__cxa_allocate_exception(i64 4) |
| invoke void @__cxa_throw(ptr %exception, ptr @_ZTI3ABC, ptr @_ZN3ABCD2Ev) noreturn |
| to label %unreachable unwind label %lpad |
| ; CHECK: call void @__asan_handle_no_return |
| ; CHECK-NEXT: @__cxa_throw |
| |
| lpad: |
| %0 = landingpad { ptr, i32 } |
| cleanup |
| call void @_ZN3ABCD2Ev(ptr nonnull %x) |
| call void @llvm.lifetime.end.p0(i64 4, ptr %x) |
| ; CHECK: store i8 -8, ptr %{{[0-9]+}} |
| ; CHECK-NEXT: @llvm.lifetime.end |
| |
| resume { ptr, i32 } %0 |
| ; CHECK: store i64 0, ptr %{{[0-9]+}} |
| ; CHECK-NEXT: resume |
| |
| unreachable: |
| unreachable |
| } |
| |
| %rtti.TypeDescriptor9 = type { ptr, ptr, [10 x i8] } |
| %eh.CatchableType = type { i32, i32, i32, i32, i32, i32, i32 } |
| %eh.CatchableTypeArray.1 = type { i32, [1 x i32] } |
| %eh.ThrowInfo = type { i32, i32, i32, i32 } |
| |
| $"\01??1ABC@@QEAA@XZ" = comdat any |
| $"\01??_R0?AUABC@@@8" = comdat any |
| $"_CT??_R0?AUABC@@@84" = comdat any |
| $"_CTA1?AUABC@@" = comdat any |
| $"_TI1?AUABC@@" = comdat any |
| |
| @"\01??_7type_info@@6B@" = external constant ptr |
| @"\01??_R0?AUABC@@@8" = linkonce_odr global %rtti.TypeDescriptor9 { ptr @"\01??_7type_info@@6B@", ptr null, [10 x i8] c".?AUABC@@\00" }, comdat |
| @__ImageBase = external constant i8 |
| @"_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 |
| @"_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 |
| @"_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 |
| |
| define void @ThrowWin() sanitize_address personality ptr @__CxxFrameHandler3 { |
| ; CHECK-LABEL: define void @ThrowWin() |
| entry: |
| %x = alloca %struct.ABC, align 4 |
| %tmp = alloca %struct.ABC, align 4 |
| |
| ; Poison memory in prologue: F1F1F1F1F8F304F2 |
| ; CHECK: store i64 -935355671561244175, ptr %{{[0-9]+}} |
| |
| call void @llvm.lifetime.start.p0(i64 4, ptr %x) |
| ; CHECK: store i8 4, ptr %{{[0-9]+}} |
| ; CHECK-NEXT: @llvm.lifetime.start |
| |
| invoke void @_CxxThrowException(ptr %tmp, ptr nonnull @"_TI1?AUABC@@") noreturn |
| to label %unreachable unwind label %ehcleanup |
| ; CHECK: call void @__asan_handle_no_return |
| ; CHECK-NEXT: @_CxxThrowException |
| |
| ehcleanup: |
| %0 = cleanuppad within none [] |
| call void @"\01??1ABC@@QEAA@XZ"(ptr nonnull %x) [ "funclet"(token %0) ] |
| call void @llvm.lifetime.end.p0(i64 4, ptr %x) |
| ; CHECK: store i8 -8, ptr %{{[0-9]+}} |
| ; CHECK-NEXT: @llvm.lifetime.end |
| |
| cleanupret from %0 unwind to caller |
| ; CHECK: store i64 0, ptr %{{[0-9]+}} |
| ; CHECK-NEXT: cleanupret |
| |
| unreachable: |
| unreachable |
| } |
| |
| |
| declare i32 @__gxx_personality_v0(...) |
| declare void @llvm.lifetime.start.p0(i64, ptr nocapture) |
| declare void @llvm.lifetime.end.p0(i64, ptr nocapture) |
| declare void @__cxa_throw(ptr, ptr, ptr) local_unnamed_addr |
| declare ptr @__cxa_allocate_exception(i64) local_unnamed_addr |
| declare void @_ZN3ABCD2Ev(ptr %this) unnamed_addr |
| declare void @"\01??1ABC@@QEAA@XZ"(ptr %this) |
| declare void @_CxxThrowException(ptr, ptr) |
| declare i32 @__CxxFrameHandler3(...) |