| // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --include-generated-funcs --version 5 |
| // __cfi_check_fail codegen when not all CFI checkers are enabled. |
| |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux -O3 -fsanitize-cfi-cross-dso \ |
| // RUN: -fsanitize=cfi-vcall \ |
| // RUN: -emit-llvm -o - %s | FileCheck %s --check-prefix=NO-MERGE |
| |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux -O3 -fsanitize-cfi-cross-dso \ |
| // RUN: -fsanitize=cfi-vcall \ |
| // RUN: -fsanitize-merge=cfi-vcall \ |
| // RUN: -emit-llvm -o - %s | FileCheck %s --check-prefix=MERGE |
| |
| void caller(void (*f)(void)) { |
| f(); |
| } |
| |
| // CHECK: define weak_odr hidden void @__cfi_check_fail(ptr noundef %0, ptr noundef %1) |
| // CHECK: store ptr %0, ptr %[[ALLOCA0:.*]], align 8 |
| // CHECK: store ptr %1, ptr %[[ALLOCA1:.*]], align 8 |
| // CHECK: %[[DATA:.*]] = load ptr, ptr %[[ALLOCA0]], align 8 |
| // CHECK: %[[ADDR:.*]] = load ptr, ptr %[[ALLOCA1]], align 8 |
| // CHECK: %[[ICMP_NOT_NULL:.*]] = icmp ne ptr %[[DATA]], null |
| // CHECK: br i1 %[[ICMP_NOT_NULL]], label %[[CONT0:.*]], label %[[TRAP:.*]], !prof |
| |
| // CHECK: [[TRAP]]: |
| // CHECK-NEXT: call void @llvm.ubsantrap(i8 2) |
| // CHECK-NEXT: unreachable |
| |
| // CHECK: [[CONT0]]: |
| // CHECK: %[[KINDPTR:.*]] = getelementptr {{.*}} %[[DATA]], i32 0, i32 0 |
| // CHECK: %[[KIND:.*]] = load i8, ptr %[[KINDPTR]], align 4 |
| // CHECK: %[[VTVALID0:.*]] = call i1 @llvm.type.test(ptr %[[ADDR]], metadata !"all-vtables") |
| // CHECK: %[[VTVALID:.*]] = zext i1 %[[VTVALID0]] to i64 |
| // CHECK: %[[NOT_0:.*]] = icmp ne i8 %[[KIND]], 0 |
| // CHECK: br i1 %[[NOT_0]], label %[[CONT1:.*]], label %[[HANDLE0:.*]], !prof |
| |
| // CHECK: [[HANDLE0]]: |
| // CHECK: %[[DATA0:.*]] = ptrtoint ptr %[[DATA]] to i64, |
| // CHECK: %[[ADDR0:.*]] = ptrtoint ptr %[[ADDR]] to i64, |
| // CHECK: call void @__ubsan_handle_cfi_check_fail_abort(i64 %[[DATA0]], i64 %[[ADDR0]], i64 %[[VTVALID]]) |
| // CHECK: unreachable |
| |
| // CHECK: [[CONT1]]: |
| // CHECK: %[[NOT_1:.*]] = icmp ne i8 %[[KIND]], 1 |
| // CHECK: br i1 %[[NOT_1]], label %[[CONT2:.*]], label %[[HANDLE1:.*]], !prof |
| |
| // CHECK: [[HANDLE1]]: |
| // CHECK-NEXT: call void @llvm.ubsantrap(i8 2) |
| // CHECK-NEXT: unreachable |
| |
| // CHECK: [[CONT2]]: |
| // CHECK: %[[NOT_2:.*]] = icmp ne i8 %[[KIND]], 2 |
| // CHECK: br i1 %[[NOT_2]], label %[[CONT3:.*]], label %[[HANDLE2:.*]], !prof |
| |
| // CHECK: [[HANDLE2]]: |
| // CHECK-NEXT: call void @llvm.ubsantrap(i8 2) |
| // CHECK-NEXT: unreachable |
| |
| // CHECK: [[CONT3]]: |
| // CHECK: %[[NOT_3:.*]] = icmp ne i8 %[[KIND]], 3 |
| // CHECK: br i1 %[[NOT_3]], label %[[CONT4:.*]], label %[[HANDLE3:.*]], !prof |
| |
| // CHECK: [[HANDLE3]]: |
| // CHECK-NEXT: call void @llvm.ubsantrap(i8 2) |
| // CHECK-NEXT: unreachable |
| |
| // CHECK: [[CONT4]]: |
| // CHECK: %[[NOT_4:.*]] = icmp ne i8 %[[KIND]], 4 |
| // CHECK: br i1 %[[NOT_4]], label %[[CONT5:.*]], label %[[HANDLE4:.*]], !prof |
| |
| // CHECK: [[HANDLE4]]: |
| // CHECK-NEXT: call void @llvm.ubsantrap(i8 2) |
| // CHECK-NEXT: unreachable |
| |
| // CHECK: [[CONT5]]: |
| // CHECK: ret void |
| // NO-MERGE-LABEL: define dso_local void @caller( |
| // NO-MERGE-SAME: ptr noundef readonly captures(none) [[F:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] { |
| // NO-MERGE-NEXT: [[ENTRY:.*:]] |
| // NO-MERGE-NEXT: tail call void [[F]]() #[[ATTR5:[0-9]+]] |
| // NO-MERGE-NEXT: ret void |
| // |
| // |
| // NO-MERGE-LABEL: define weak_odr hidden void @__cfi_check_fail( |
| // NO-MERGE-SAME: ptr noundef [[TMP0:%.*]], ptr noundef [[TMP1:%.*]]) #[[ATTR0]] { |
| // NO-MERGE-NEXT: [[ENTRY:.*:]] |
| // NO-MERGE-NEXT: [[DOTNOT:%.*]] = icmp eq ptr [[TMP0]], null, !nosanitize [[META3:![0-9]+]] |
| // NO-MERGE-NEXT: br i1 [[DOTNOT]], label %[[TRAP:.*]], label %[[CONT:.*]], !prof [[PROF4:![0-9]+]], !nosanitize [[META3]] |
| // NO-MERGE: [[TRAP]]: |
| // NO-MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR6:[0-9]+]], !nosanitize [[META3]] |
| // NO-MERGE-NEXT: unreachable, !nosanitize [[META3]] |
| // NO-MERGE: [[CONT]]: |
| // NO-MERGE-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP0]], align 4, !nosanitize [[META3]] |
| // NO-MERGE-NEXT: switch i8 [[TMP2]], label %[[CONT6:.*]] [ |
| // NO-MERGE-NEXT: i8 0, label %[[HANDLER_CFI_CHECK_FAIL:.*]] |
| // NO-MERGE-NEXT: i8 1, label %[[TRAP]] |
| // NO-MERGE-NEXT: i8 2, label %[[TRAP]] |
| // NO-MERGE-NEXT: i8 3, label %[[TRAP]] |
| // NO-MERGE-NEXT: i8 4, label %[[TRAP]] |
| // NO-MERGE-NEXT: ], !prof [[PROF5:![0-9]+]] |
| // NO-MERGE: [[HANDLER_CFI_CHECK_FAIL]]: |
| // NO-MERGE-NEXT: [[TMP3:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP1]], metadata !"all-vtables"), !nosanitize [[META3]] |
| // NO-MERGE-NEXT: [[TMP4:%.*]] = zext i1 [[TMP3]] to i64, !nosanitize [[META3]] |
| // NO-MERGE-NEXT: [[TMP5:%.*]] = ptrtoint ptr [[TMP0]] to i64, !nosanitize [[META3]] |
| // NO-MERGE-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META3]] |
| // NO-MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP5]], i64 [[TMP6]], i64 [[TMP4]]) #[[ATTR7:[0-9]+]], !nosanitize [[META3]] |
| // NO-MERGE-NEXT: unreachable, !nosanitize [[META3]] |
| // NO-MERGE: [[CONT6]]: |
| // NO-MERGE-NEXT: ret void, !nosanitize [[META3]] |
| // |
| // |
| // NO-MERGE-LABEL: define weak void @__cfi_check( |
| // NO-MERGE-SAME: i64 noundef [[TMP0:%.*]], ptr noundef [[TMP1:%.*]], ptr noundef [[TMP2:%.*]]) local_unnamed_addr #[[ATTR4:[0-9]+]] align 4096 { |
| // NO-MERGE-NEXT: [[ENTRY:.*:]] |
| // NO-MERGE-NEXT: [[DOTNOT_I:%.*]] = icmp eq ptr [[TMP2]], null, !nosanitize [[META3]] |
| // NO-MERGE-NEXT: br i1 [[DOTNOT_I]], label %[[TRAP_I:.*]], label %[[CONT_I:.*]], !prof [[PROF4]], !nosanitize [[META3]] |
| // NO-MERGE: [[TRAP_I]]: |
| // NO-MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR6]], !nosanitize [[META3]] |
| // NO-MERGE-NEXT: unreachable, !nosanitize [[META3]] |
| // NO-MERGE: [[CONT_I]]: |
| // NO-MERGE-NEXT: [[TMP3:%.*]] = load i8, ptr [[TMP2]], align 4, !nosanitize [[META3]] |
| // NO-MERGE-NEXT: switch i8 [[TMP3]], label %[[__CFI_CHECK_FAIL_EXIT:.*]] [ |
| // NO-MERGE-NEXT: i8 0, label %[[HANDLER_CFI_CHECK_FAIL_I:.*]] |
| // NO-MERGE-NEXT: i8 1, label %[[TRAP_I]] |
| // NO-MERGE-NEXT: i8 2, label %[[TRAP_I]] |
| // NO-MERGE-NEXT: i8 3, label %[[TRAP_I]] |
| // NO-MERGE-NEXT: i8 4, label %[[TRAP_I]] |
| // NO-MERGE-NEXT: ], !prof [[PROF5]] |
| // NO-MERGE: [[HANDLER_CFI_CHECK_FAIL_I]]: |
| // NO-MERGE-NEXT: [[TMP4:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP1]], metadata !"all-vtables"), !nosanitize [[META3]] |
| // NO-MERGE-NEXT: [[TMP5:%.*]] = zext i1 [[TMP4]] to i64, !nosanitize [[META3]] |
| // NO-MERGE-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP2]] to i64, !nosanitize [[META3]] |
| // NO-MERGE-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META3]] |
| // NO-MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP6]], i64 [[TMP7]], i64 [[TMP5]]) #[[ATTR7]], !nosanitize [[META3]] |
| // NO-MERGE-NEXT: unreachable, !nosanitize [[META3]] |
| // NO-MERGE: [[__CFI_CHECK_FAIL_EXIT]]: |
| // NO-MERGE-NEXT: ret void |
| // |
| // |
| // MERGE-LABEL: define dso_local void @caller( |
| // MERGE-SAME: ptr noundef readonly captures(none) [[F:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] { |
| // MERGE-NEXT: [[ENTRY:.*:]] |
| // MERGE-NEXT: tail call void [[F]]() #[[ATTR5:[0-9]+]] |
| // MERGE-NEXT: ret void |
| // |
| // |
| // MERGE-LABEL: define weak_odr hidden void @__cfi_check_fail( |
| // MERGE-SAME: ptr noundef [[TMP0:%.*]], ptr noundef [[TMP1:%.*]]) #[[ATTR0]] { |
| // MERGE-NEXT: [[ENTRY:.*:]] |
| // MERGE-NEXT: [[DOTNOT:%.*]] = icmp eq ptr [[TMP0]], null, !nosanitize [[META3:![0-9]+]] |
| // MERGE-NEXT: br i1 [[DOTNOT]], label %[[TRAP:.*]], label %[[CONT:.*]], !prof [[PROF4:![0-9]+]], !nosanitize [[META3]] |
| // MERGE: [[TRAP]]: |
| // MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR6:[0-9]+]], !nosanitize [[META3]] |
| // MERGE-NEXT: unreachable, !nosanitize [[META3]] |
| // MERGE: [[CONT]]: |
| // MERGE-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP0]], align 4, !nosanitize [[META3]] |
| // MERGE-NEXT: switch i8 [[TMP2]], label %[[CONT6:.*]] [ |
| // MERGE-NEXT: i8 0, label %[[HANDLER_CFI_CHECK_FAIL:.*]] |
| // MERGE-NEXT: i8 1, label %[[TRAP]] |
| // MERGE-NEXT: i8 2, label %[[TRAP]] |
| // MERGE-NEXT: i8 3, label %[[TRAP]] |
| // MERGE-NEXT: i8 4, label %[[TRAP]] |
| // MERGE-NEXT: ], !prof [[PROF5:![0-9]+]] |
| // MERGE: [[HANDLER_CFI_CHECK_FAIL]]: |
| // MERGE-NEXT: [[TMP3:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP1]], metadata !"all-vtables"), !nosanitize [[META3]] |
| // MERGE-NEXT: [[TMP4:%.*]] = zext i1 [[TMP3]] to i64, !nosanitize [[META3]] |
| // MERGE-NEXT: [[TMP5:%.*]] = ptrtoint ptr [[TMP0]] to i64, !nosanitize [[META3]] |
| // MERGE-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META3]] |
| // MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP5]], i64 [[TMP6]], i64 [[TMP4]]) #[[ATTR6]], !nosanitize [[META3]] |
| // MERGE-NEXT: unreachable, !nosanitize [[META3]] |
| // MERGE: [[CONT6]]: |
| // MERGE-NEXT: ret void, !nosanitize [[META3]] |
| // |
| // |
| // MERGE-LABEL: define weak void @__cfi_check( |
| // MERGE-SAME: i64 noundef [[TMP0:%.*]], ptr noundef [[TMP1:%.*]], ptr noundef [[TMP2:%.*]]) local_unnamed_addr #[[ATTR4:[0-9]+]] align 4096 { |
| // MERGE-NEXT: [[ENTRY:.*:]] |
| // MERGE-NEXT: [[DOTNOT_I:%.*]] = icmp eq ptr [[TMP2]], null, !nosanitize [[META3]] |
| // MERGE-NEXT: br i1 [[DOTNOT_I]], label %[[TRAP_I:.*]], label %[[CONT_I:.*]], !prof [[PROF4]], !nosanitize [[META3]] |
| // MERGE: [[TRAP_I]]: |
| // MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR6]], !nosanitize [[META3]] |
| // MERGE-NEXT: unreachable, !nosanitize [[META3]] |
| // MERGE: [[CONT_I]]: |
| // MERGE-NEXT: [[TMP3:%.*]] = load i8, ptr [[TMP2]], align 4, !nosanitize [[META3]] |
| // MERGE-NEXT: switch i8 [[TMP3]], label %[[__CFI_CHECK_FAIL_EXIT:.*]] [ |
| // MERGE-NEXT: i8 0, label %[[HANDLER_CFI_CHECK_FAIL_I:.*]] |
| // MERGE-NEXT: i8 1, label %[[TRAP_I]] |
| // MERGE-NEXT: i8 2, label %[[TRAP_I]] |
| // MERGE-NEXT: i8 3, label %[[TRAP_I]] |
| // MERGE-NEXT: i8 4, label %[[TRAP_I]] |
| // MERGE-NEXT: ], !prof [[PROF5]] |
| // MERGE: [[HANDLER_CFI_CHECK_FAIL_I]]: |
| // MERGE-NEXT: [[TMP4:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP1]], metadata !"all-vtables"), !nosanitize [[META3]] |
| // MERGE-NEXT: [[TMP5:%.*]] = zext i1 [[TMP4]] to i64, !nosanitize [[META3]] |
| // MERGE-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP2]] to i64, !nosanitize [[META3]] |
| // MERGE-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META3]] |
| // MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP6]], i64 [[TMP7]], i64 [[TMP5]]) #[[ATTR6]], !nosanitize [[META3]] |
| // MERGE-NEXT: unreachable, !nosanitize [[META3]] |
| // MERGE: [[__CFI_CHECK_FAIL_EXIT]]: |
| // MERGE-NEXT: ret void |
| |
| // MERGE: [[ATTR5]] = { nounwind } |
| // MERGE: [[ATTR6]] = { noreturn nounwind } |
| |
| // NO-MERGE: [[ATTR6]] = { noreturn nounwind } |
| // NO-MERGE: [[ATTR7]] = { nomerge noreturn nounwind } |
