1*9880d681SAndroid Build Coastguard Worker; Test handling of llvm.lifetime intrinsics in UAR/UAS modes. 2*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -asan -asan-module -asan-use-after-return=0 -asan-use-after-scope=0 -S | FileCheck %s 3*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -asan -asan-module -asan-use-after-return=1 -asan-use-after-scope=0 -S | FileCheck %s 4*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -asan -asan-module -asan-use-after-return=0 -asan-use-after-scope=1 -S | FileCheck %s --check-prefix=CHECK-UAS 5*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -asan -asan-module -asan-use-after-return=1 -asan-use-after-scope=1 -S | FileCheck %s --check-prefix=CHECK-UAS 6*9880d681SAndroid Build Coastguard Worker 7*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 8*9880d681SAndroid Build Coastguard Worker 9*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.lifetime.start(i64, i8* nocapture) nounwind 10*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.lifetime.end(i64, i8* nocapture) nounwind 11*9880d681SAndroid Build Coastguard Worker 12*9880d681SAndroid Build Coastguard Workerdefine i32 @basic_test() sanitize_address { 13*9880d681SAndroid Build Coastguard Worker ; CHECK-LABEL: define i32 @basic_test() 14*9880d681SAndroid Build Coastguard Worker 15*9880d681SAndroid Build Coastguard Workerentry: 16*9880d681SAndroid Build Coastguard Worker %retval = alloca i32, align 4 17*9880d681SAndroid Build Coastguard Worker %c = alloca i8, align 1 18*9880d681SAndroid Build Coastguard Worker 19*9880d681SAndroid Build Coastguard Worker call void @llvm.lifetime.start(i64 1, i8* %c) 20*9880d681SAndroid Build Coastguard Worker ; Memory is unpoisoned at llvm.lifetime.start 21*9880d681SAndroid Build Coastguard Worker ; CHECK-UAS: call void @__asan_unpoison_stack_memory(i64 %{{[^ ]+}}, i64 1) 22*9880d681SAndroid Build Coastguard Worker 23*9880d681SAndroid Build Coastguard Worker store volatile i32 0, i32* %retval 24*9880d681SAndroid Build Coastguard Worker store volatile i8 0, i8* %c, align 1 25*9880d681SAndroid Build Coastguard Worker 26*9880d681SAndroid Build Coastguard Worker call void @llvm.lifetime.end(i64 1, i8* %c) 27*9880d681SAndroid Build Coastguard Worker ; Memory is poisoned at llvm.lifetime.end 28*9880d681SAndroid Build Coastguard Worker ; CHECK-UAS: call void @__asan_poison_stack_memory(i64 %{{[^ ]+}}, i64 1) 29*9880d681SAndroid Build Coastguard Worker 30*9880d681SAndroid Build Coastguard Worker ; Unpoison memory at function exit in UAS mode. 31*9880d681SAndroid Build Coastguard Worker ; CHECK-UAS: call void @__asan_unpoison_stack_memory(i64 %{{[^ ]+}}, i64 64) 32*9880d681SAndroid Build Coastguard Worker ; CHECK-UAS: ret void 33*9880d681SAndroid Build Coastguard Worker 34*9880d681SAndroid Build Coastguard Worker ret i32 0 35*9880d681SAndroid Build Coastguard Worker} 36*9880d681SAndroid Build Coastguard Worker 37*9880d681SAndroid Build Coastguard Worker; No poisoning/poisoning at all in plain mode. 38*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: __asan_poison_stack_memory 39*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: __asan_unpoison_stack_memory 40