127 lines · c
1// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 62// RUN: %clang_cc1 -O1 -triple x86_64-none-linux-gnu -emit-llvm -debug-info-kind=line-tables-only %s -o - | FileCheck %s --check-prefix=CHECK-LIFETIME3 4// We shouldn't have markers at -O0 or with msan.5// RUN: %clang_cc1 -O0 -triple x86_64-none-linux-gnu -emit-llvm -debug-info-kind=line-tables-only %s -o - | FileCheck %s --check-prefix=CHECK-OPTNONE6// RUN: %clang_cc1 -O1 -triple x86_64-none-linux-gnu -emit-llvm -debug-info-kind=line-tables-only %s -o - -fsanitize=memory | FileCheck %s --check-prefix=CHECK-MSAN7// RUN: %clang_cc1 -O1 -triple x86_64-none-linux-gnu -emit-llvm -debug-info-kind=line-tables-only %s -o - -fsanitize=kernel-memory | FileCheck %s --check-prefix=CHECK-KMSAN8 9// There is no exception to handle here, lifetime.end is not a destructor,10// so there is no need have cleanup dest slot related code11 12// CHECK-LIFETIME-LABEL: define dso_local i32 @test(13// CHECK-LIFETIME-SAME: ) local_unnamed_addr #[[ATTR0:[0-9]+]] !dbg [[DBG5:![0-9]+]] {14// CHECK-LIFETIME-NEXT: [[ENTRY:.*:]]15// CHECK-LIFETIME-NEXT: [[X:%.*]] = alloca i32, align 416// CHECK-LIFETIME-NEXT: [[P:%.*]] = alloca ptr, align 817// CHECK-LIFETIME-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[X]]) #[[ATTR2:[0-9]+]], !dbg [[DBG9:![0-9]+]]18// CHECK-LIFETIME-NEXT: store i32 3, ptr [[X]], align 4, !dbg [[DBG10:![0-9]+]], !tbaa [[INT_TBAA11:![0-9]+]]19// CHECK-LIFETIME-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[P]]), !dbg [[DBG15:![0-9]+]]20// CHECK-LIFETIME-NEXT: store volatile ptr [[X]], ptr [[P]], align 8, !dbg [[DBG16:![0-9]+]], !tbaa [[INTPTR_TBAA17:![0-9]+]]21// CHECK-LIFETIME-NEXT: [[P_0_P_0_P_0_P_0_:%.*]] = load volatile ptr, ptr [[P]], align 8, !dbg [[DBG20:![0-9]+]], !tbaa [[INTPTR_TBAA17]]22// CHECK-LIFETIME-NEXT: [[TMP0:%.*]] = load i32, ptr [[P_0_P_0_P_0_P_0_]], align 4, !dbg [[DBG21:![0-9]+]], !tbaa [[INT_TBAA11]]23// CHECK-LIFETIME-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[P]]), !dbg [[DBG22:![0-9]+]]24// CHECK-LIFETIME-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[X]]) #[[ATTR2]], !dbg [[DBG22]]25// CHECK-LIFETIME-NEXT: ret i32 [[TMP0]], !dbg [[DBG23:![0-9]+]]26//27// CHECK-OPTNONE-LABEL: define dso_local i32 @test(28// CHECK-OPTNONE-SAME: ) #[[ATTR0:[0-9]+]] !dbg [[DBG5:![0-9]+]] {29// CHECK-OPTNONE-NEXT: [[ENTRY:.*:]]30// CHECK-OPTNONE-NEXT: [[X:%.*]] = alloca i32, align 431// CHECK-OPTNONE-NEXT: [[P:%.*]] = alloca ptr, align 832// CHECK-OPTNONE-NEXT: store i32 3, ptr [[X]], align 4, !dbg [[DBG9:![0-9]+]]33// CHECK-OPTNONE-NEXT: store volatile ptr [[X]], ptr [[P]], align 8, !dbg [[DBG10:![0-9]+]]34// CHECK-OPTNONE-NEXT: [[TMP0:%.*]] = load volatile ptr, ptr [[P]], align 8, !dbg [[DBG11:![0-9]+]]35// CHECK-OPTNONE-NEXT: [[TMP1:%.*]] = load i32, ptr [[TMP0]], align 4, !dbg [[DBG12:![0-9]+]]36// CHECK-OPTNONE-NEXT: ret i32 [[TMP1]], !dbg [[DBG13:![0-9]+]]37//38// CHECK-MSAN-LABEL: define dso_local noundef i32 @test(39// CHECK-MSAN-SAME: ) local_unnamed_addr #[[ATTR0:[0-9]+]] !dbg [[DBG6:![0-9]+]] {40// CHECK-MSAN-NEXT: [[ENTRY:.*:]]41// CHECK-MSAN-NEXT: [[X:%.*]] = alloca i32, align 442// CHECK-MSAN-NEXT: [[P:%.*]] = alloca ptr, align 843// CHECK-MSAN-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[X]]) #[[ATTR3:[0-9]+]], !dbg [[DBG10:![0-9]+]]44// CHECK-MSAN-NEXT: [[TMP0:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG10]]45// CHECK-MSAN-NEXT: [[TMP1:%.*]] = xor i64 [[TMP0]], 87960930222080, !dbg [[DBG10]]46// CHECK-MSAN-NEXT: [[TMP2:%.*]] = inttoptr i64 [[TMP1]] to ptr, !dbg [[DBG10]]47// CHECK-MSAN-NEXT: store i32 0, ptr [[TMP2]], align 4, !dbg [[DBG11:![0-9]+]]48// CHECK-MSAN-NEXT: store i32 3, ptr [[X]], align 4, !dbg [[DBG11]], !tbaa [[INT_TBAA12:![0-9]+]]49// CHECK-MSAN-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[P]]), !dbg [[DBG16:![0-9]+]]50// CHECK-MSAN-NEXT: [[TMP3:%.*]] = ptrtoint ptr [[P]] to i64, !dbg [[DBG16]]51// CHECK-MSAN-NEXT: [[TMP4:%.*]] = xor i64 [[TMP3]], 87960930222080, !dbg [[DBG16]]52// CHECK-MSAN-NEXT: [[TMP5:%.*]] = inttoptr i64 [[TMP4]] to ptr, !dbg [[DBG16]]53// CHECK-MSAN-NEXT: store i64 0, ptr [[TMP5]], align 8, !dbg [[DBG17:![0-9]+]]54// CHECK-MSAN-NEXT: store volatile ptr [[X]], ptr [[P]], align 8, !dbg [[DBG17]], !tbaa [[INTPTR_TBAA18:![0-9]+]]55// CHECK-MSAN-NEXT: [[P_0_P_0_P_0_P_0_:%.*]] = load volatile ptr, ptr [[P]], align 8, !dbg [[DBG21:![0-9]+]], !tbaa [[INTPTR_TBAA18]]56// CHECK-MSAN-NEXT: [[_MSLD:%.*]] = load i64, ptr [[TMP5]], align 8, !dbg [[DBG21]]57// CHECK-MSAN-NEXT: [[_MSCMP_NOT:%.*]] = icmp eq i64 [[_MSLD]], 0, !dbg [[DBG22:![0-9]+]]58// CHECK-MSAN-NEXT: br i1 [[_MSCMP_NOT]], label %[[BB7:.*]], label %[[BB6:.*]], !dbg [[DBG22]], !prof [[PROF23:![0-9]+]]59// CHECK-MSAN: [[BB6]]:60// CHECK-MSAN-NEXT: call void @__msan_warning_noreturn() #[[ATTR4:[0-9]+]], !dbg [[DBG22]]61// CHECK-MSAN-NEXT: unreachable, !dbg [[DBG22]]62// CHECK-MSAN: [[BB7]]:63// CHECK-MSAN-NEXT: [[TMP8:%.*]] = load i32, ptr [[P_0_P_0_P_0_P_0_]], align 4, !dbg [[DBG22]], !tbaa [[INT_TBAA12]]64// CHECK-MSAN-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[P_0_P_0_P_0_P_0_]] to i64, !dbg [[DBG22]]65// CHECK-MSAN-NEXT: [[TMP10:%.*]] = xor i64 [[TMP9]], 87960930222080, !dbg [[DBG22]]66// CHECK-MSAN-NEXT: [[TMP11:%.*]] = inttoptr i64 [[TMP10]] to ptr, !dbg [[DBG22]]67// CHECK-MSAN-NEXT: [[_MSLD1:%.*]] = load i32, ptr [[TMP11]], align 4, !dbg [[DBG22]]68// CHECK-MSAN-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[P]]), !dbg [[DBG24:![0-9]+]]69// CHECK-MSAN-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[X]]) #[[ATTR3]], !dbg [[DBG24]]70// CHECK-MSAN-NEXT: [[_MSCMP2_NOT:%.*]] = icmp eq i32 [[_MSLD1]], 0, !dbg [[DBG25:![0-9]+]]71// CHECK-MSAN-NEXT: br i1 [[_MSCMP2_NOT]], label %[[BB13:.*]], label %[[BB12:.*]], !dbg [[DBG25]], !prof [[PROF23]]72// CHECK-MSAN: [[BB12]]:73// CHECK-MSAN-NEXT: call void @__msan_warning_noreturn() #[[ATTR4]], !dbg [[DBG25]]74// CHECK-MSAN-NEXT: unreachable, !dbg [[DBG25]]75// CHECK-MSAN: [[BB13]]:76// CHECK-MSAN-NEXT: ret i32 [[TMP8]], !dbg [[DBG25]]77//78// CHECK-KMSAN-LABEL: define dso_local i32 @test(79// CHECK-KMSAN-SAME: ) local_unnamed_addr #[[ATTR0:[0-9]+]] !dbg [[DBG6:![0-9]+]] {80// CHECK-KMSAN-NEXT: [[ENTRY:.*:]]81// CHECK-KMSAN-NEXT: [[TMP0:%.*]] = call ptr @__msan_get_context_state() #[[ATTR2:[0-9]+]]82// CHECK-KMSAN-NEXT: [[X:%.*]] = alloca i32, align 483// CHECK-KMSAN-NEXT: [[P:%.*]] = alloca ptr, align 884// CHECK-KMSAN-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[X]]) #[[ATTR2]], !dbg [[DBG10:![0-9]+]]85// CHECK-KMSAN-NEXT: call void @__msan_poison_alloca(ptr nonnull [[X]], i64 4, ptr nonnull @[[GLOB0:[0-9]+]]) #[[ATTR2]], !dbg [[DBG10]]86// CHECK-KMSAN-NEXT: [[TMP1:%.*]] = call { ptr, ptr } @__msan_metadata_ptr_for_store_4(ptr nonnull [[X]]) #[[ATTR2]], !dbg [[DBG11:![0-9]+]]87// CHECK-KMSAN-NEXT: [[TMP2:%.*]] = extractvalue { ptr, ptr } [[TMP1]], 0, !dbg [[DBG11]]88// CHECK-KMSAN-NEXT: store i32 0, ptr [[TMP2]], align 4, !dbg [[DBG11]]89// CHECK-KMSAN-NEXT: store i32 3, ptr [[X]], align 4, !dbg [[DBG11]], !tbaa [[INT_TBAA12:![0-9]+]]90// CHECK-KMSAN-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[P]]), !dbg [[DBG16:![0-9]+]]91// CHECK-KMSAN-NEXT: call void @__msan_poison_alloca(ptr nonnull [[P]], i64 8, ptr nonnull @[[GLOB1:[0-9]+]]) #[[ATTR2]], !dbg [[DBG16]]92// CHECK-KMSAN-NEXT: [[TMP3:%.*]] = call { ptr, ptr } @__msan_metadata_ptr_for_store_8(ptr nonnull [[P]]) #[[ATTR2]], !dbg [[DBG17:![0-9]+]]93// CHECK-KMSAN-NEXT: [[TMP4:%.*]] = extractvalue { ptr, ptr } [[TMP3]], 0, !dbg [[DBG17]]94// CHECK-KMSAN-NEXT: store i64 0, ptr [[TMP4]], align 8, !dbg [[DBG17]]95// CHECK-KMSAN-NEXT: store volatile ptr [[X]], ptr [[P]], align 8, !dbg [[DBG17]], !tbaa [[INTPTR_TBAA18:![0-9]+]]96// CHECK-KMSAN-NEXT: [[P_0_P_0_P_0_P_0_:%.*]] = load volatile ptr, ptr [[P]], align 8, !dbg [[DBG21:![0-9]+]], !tbaa [[INTPTR_TBAA18]]97// CHECK-KMSAN-NEXT: [[TMP5:%.*]] = call { ptr, ptr } @__msan_metadata_ptr_for_load_8(ptr nonnull [[P]]) #[[ATTR2]], !dbg [[DBG21]]98// CHECK-KMSAN-NEXT: [[TMP6:%.*]] = extractvalue { ptr, ptr } [[TMP5]], 0, !dbg [[DBG21]]99// CHECK-KMSAN-NEXT: [[_MSLD:%.*]] = load i64, ptr [[TMP6]], align 8, !dbg [[DBG21]]100// CHECK-KMSAN-NEXT: [[_MSCMP_NOT:%.*]] = icmp eq i64 [[_MSLD]], 0, !dbg [[DBG22:![0-9]+]]101// CHECK-KMSAN-NEXT: br i1 [[_MSCMP_NOT]], label %[[BB10:.*]], label %[[BB7:.*]], !dbg [[DBG22]], !prof [[PROF23:![0-9]+]]102// CHECK-KMSAN: [[BB7]]:103// CHECK-KMSAN-NEXT: [[TMP8:%.*]] = extractvalue { ptr, ptr } [[TMP5]], 1, !dbg [[DBG21]]104// CHECK-KMSAN-NEXT: [[TMP9:%.*]] = load i32, ptr [[TMP8]], align 8, !dbg [[DBG21]]105// CHECK-KMSAN-NEXT: call void @__msan_warning(i32 [[TMP9]]) #[[ATTR3:[0-9]+]], !dbg [[DBG22]]106// CHECK-KMSAN-NEXT: br label %[[BB10]], !dbg [[DBG22]]107// CHECK-KMSAN: [[BB10]]:108// CHECK-KMSAN-NEXT: [[RETVAL_ORIGIN:%.*]] = getelementptr i8, ptr [[TMP0]], i64 4008109// CHECK-KMSAN-NEXT: [[RETVAL_SHADOW:%.*]] = getelementptr i8, ptr [[TMP0]], i64 800110// CHECK-KMSAN-NEXT: [[TMP11:%.*]] = load i32, ptr [[P_0_P_0_P_0_P_0_]], align 4, !dbg [[DBG22]], !tbaa [[INT_TBAA12]]111// CHECK-KMSAN-NEXT: [[TMP12:%.*]] = call { ptr, ptr } @__msan_metadata_ptr_for_load_4(ptr nonnull [[P_0_P_0_P_0_P_0_]]) #[[ATTR2]], !dbg [[DBG22]]112// CHECK-KMSAN-NEXT: [[TMP13:%.*]] = extractvalue { ptr, ptr } [[TMP12]], 0, !dbg [[DBG22]]113// CHECK-KMSAN-NEXT: [[TMP14:%.*]] = extractvalue { ptr, ptr } [[TMP12]], 1, !dbg [[DBG22]]114// CHECK-KMSAN-NEXT: [[_MSLD1:%.*]] = load i32, ptr [[TMP13]], align 4, !dbg [[DBG22]]115// CHECK-KMSAN-NEXT: [[TMP15:%.*]] = load i32, ptr [[TMP14]], align 4, !dbg [[DBG22]]116// CHECK-KMSAN-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[P]]), !dbg [[DBG24:![0-9]+]]117// CHECK-KMSAN-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[X]]) #[[ATTR2]], !dbg [[DBG24]]118// CHECK-KMSAN-NEXT: store i32 [[_MSLD1]], ptr [[RETVAL_SHADOW]], align 8, !dbg [[DBG25:![0-9]+]]119// CHECK-KMSAN-NEXT: store i32 [[TMP15]], ptr [[RETVAL_ORIGIN]], align 4, !dbg [[DBG25]]120// CHECK-KMSAN-NEXT: ret i32 [[TMP11]], !dbg [[DBG25]]121//122int test(void) {123 int x = 3;124 int *volatile p = &x;125 return *p;126}127