Author: Thurston Dang Date: 2025-04-09T19:46:59-07:00 New Revision: d1badf5635c5876a8c0b9558fe149ef0e293b865
URL: https://github.com/llvm/llvm-project/commit/d1badf5635c5876a8c0b9558fe149ef0e293b865 DIFF: https://github.com/llvm/llvm-project/commit/d1badf5635c5876a8c0b9558fe149ef0e293b865.diff LOG: [cfi][NFCI] Precommit tests to show nomerge functionality (#135104) https://github.com/llvm/llvm-project/pull/120464 (and earlier CLs) added -fsanitize-merge functionality, which is intended to work for all "sanitizers". It is nearly correct for CFI. This patch precommits some tests for CFI, to track the progress of future -fsanitize-merge fixes for CFI. Added: clang/test/CodeGen/cfi-check-fail-nomerge.c clang/test/CodeGen/cfi-check-fail2-nomerge.c clang/test/CodeGenCXX/cfi-mfcall-nomerge.cpp Modified: Removed: ################################################################################ diff --git a/clang/test/CodeGen/cfi-check-fail-nomerge.c b/clang/test/CodeGen/cfi-check-fail-nomerge.c new file mode 100644 index 0000000000000..05ea8d8327904 --- /dev/null +++ b/clang/test/CodeGen/cfi-check-fail-nomerge.c @@ -0,0 +1,232 @@ +// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --include-generated-funcs --version 5 +// +// N.B. although the clang driver defaults to merge, clang_cc1 defaults to non-merge. +// (This is similar to -fsanitize-recover, for which the default is also applied +// at the driver level only.) +// If optimization is disabled, merging is disabled (overrides -fsanitize-merge). + +// RUN: %clang_cc1 -O3 -triple x86_64-unknown-linux -fsanitize-cfi-cross-dso \ +// RUN: -fsanitize=cfi-icall,cfi-nvcall,cfi-vcall,cfi-unrelated-cast,cfi-derived-cast \ +// RUN: -fsanitize-trap=cfi-icall,cfi-nvcall \ +// RUN: -fsanitize-merge=cfi-icall,cfi-nvcall \ +// RUN: -emit-llvm -o - %s | FileCheck %s --check-prefix=MERGE + +// RUN: %clang_cc1 -O3 -triple x86_64-unknown-linux -fsanitize-cfi-cross-dso \ +// RUN: -fsanitize=cfi-icall,cfi-nvcall,cfi-vcall,cfi-unrelated-cast,cfi-derived-cast \ +// RUN: -fsanitize-trap=cfi-icall,cfi-nvcall \ +// RUN: -emit-llvm -o - %s | FileCheck %s --check-prefix=NO-MERGE + +// NOMERGE-LABEL: define dso_local void @caller( +// NOMERGE-SAME: ptr noundef [[F:%.*]]) #[[ATTR0:[0-9]+]] !type [[META4:![0-9]+]] !type [[META5:![0-9]+]] !type [[META6:![0-9]+]] { +// NOMERGE-NEXT: [[ENTRY:.*:]] +// NOMERGE-NEXT: [[F_ADDR:%.*]] = alloca ptr, align 8 +// NOMERGE-NEXT: store ptr [[F]], ptr [[F_ADDR]], align 8 +// NOMERGE-NEXT: [[TMP0:%.*]] = load ptr, ptr [[F_ADDR]], align 8 +// NOMERGE-NEXT: [[TMP1:%.*]] = call i1 @llvm.type.test(ptr [[TMP0]], metadata !"_ZTSFvvE"), !nosanitize [[META7:![0-9]+]] +// NOMERGE-NEXT: br i1 [[TMP1]], label %[[CFI_CONT:.*]], label %[[CFI_SLOWPATH:.*]], !prof [[PROF8:![0-9]+]], !nosanitize [[META7]] +// NOMERGE: [[CFI_SLOWPATH]]: +// NOMERGE-NEXT: call void @__cfi_slowpath(i64 9080559750644022485, ptr [[TMP0]]) #[[ATTR7:[0-9]+]], !nosanitize [[META7]] +// NOMERGE-NEXT: br label %[[CFI_CONT]], !nosanitize [[META7]] +// NOMERGE: [[CFI_CONT]]: +// NOMERGE-NEXT: call void [[TMP0]]() +// NOMERGE-NEXT: ret void +void caller(void (*f)(void)) { + f(); +} + + + +// MERGE-LABEL: define dso_local void @caller( +// MERGE-SAME: ptr noundef [[F:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] !type [[META4:![0-9]+]] !type [[META5:![0-9]+]] !type [[META6:![0-9]+]] { +// MERGE-NEXT: [[ENTRY:.*:]] +// MERGE-NEXT: [[TMP0:%.*]] = tail call i1 @llvm.type.test(ptr [[F]], metadata !"_ZTSFvvE"), !nosanitize [[META7:![0-9]+]] +// MERGE-NEXT: br i1 [[TMP0]], label %[[CFI_CONT:.*]], label %[[CFI_SLOWPATH:.*]], !prof [[PROF8:![0-9]+]], !nosanitize [[META7]] +// MERGE: [[CFI_SLOWPATH]]: +// MERGE-NEXT: tail call void @__cfi_slowpath(i64 9080559750644022485, ptr [[F]]) #[[ATTR5:[0-9]+]], !nosanitize [[META7]] +// MERGE-NEXT: br label %[[CFI_CONT]], !nosanitize [[META7]] +// MERGE: [[CFI_CONT]]: +// MERGE-NEXT: tail call void [[F]]() #[[ATTR5]] +// 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 [[META7]] +// MERGE-NEXT: br i1 [[DOTNOT]], label %[[TRAP:.*]], label %[[CONT:.*]], !prof [[PROF9:![0-9]+]], !nosanitize [[META7]] +// MERGE: [[TRAP]]: +// MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR6:[0-9]+]], !nosanitize [[META7]] +// MERGE-NEXT: unreachable, !nosanitize [[META7]] +// MERGE: [[CONT]]: +// MERGE-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP0]], align 4, !nosanitize [[META7]] +// MERGE-NEXT: [[TMP3:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP1]], metadata !"all-vtables"), !nosanitize [[META7]] +// MERGE-NEXT: [[TMP4:%.*]] = zext i1 [[TMP3]] to i64, !nosanitize [[META7]] +// MERGE-NEXT: switch i8 [[TMP2]], label %[[CONT8:.*]] [ +// MERGE-NEXT: i8 0, label %[[HANDLER_CFI_CHECK_FAIL:.*]] +// MERGE-NEXT: i8 1, label %[[TRAP]] +// MERGE-NEXT: i8 2, label %[[HANDLER_CFI_CHECK_FAIL4:.*]] +// MERGE-NEXT: i8 3, label %[[HANDLER_CFI_CHECK_FAIL6:.*]] +// MERGE-NEXT: i8 4, label %[[TRAP]] +// MERGE-NEXT: ], !prof [[PROF10:![0-9]+]] +// MERGE: [[HANDLER_CFI_CHECK_FAIL]]: +// MERGE-NEXT: [[TMP5:%.*]] = ptrtoint ptr [[TMP0]] to i64, !nosanitize [[META7]] +// MERGE-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META7]] +// MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP5]], i64 [[TMP6]], i64 [[TMP4]]) #[[ATTR7:[0-9]+]], !nosanitize [[META7]] +// MERGE-NEXT: unreachable, !nosanitize [[META7]] +// MERGE: [[HANDLER_CFI_CHECK_FAIL4]]: +// MERGE-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP0]] to i64, !nosanitize [[META7]] +// MERGE-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META7]] +// MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP7]], i64 [[TMP8]], i64 [[TMP4]]) #[[ATTR7]], !nosanitize [[META7]] +// MERGE-NEXT: unreachable, !nosanitize [[META7]] +// MERGE: [[HANDLER_CFI_CHECK_FAIL6]]: +// MERGE-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[TMP0]] to i64, !nosanitize [[META7]] +// MERGE-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META7]] +// MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP9]], i64 [[TMP10]], i64 [[TMP4]]) #[[ATTR7]], !nosanitize [[META7]] +// MERGE-NEXT: unreachable, !nosanitize [[META7]] +// MERGE: [[CONT8]]: +// MERGE-NEXT: ret void, !nosanitize [[META7]] +// +// +// 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 [[META7]] +// MERGE-NEXT: br i1 [[DOTNOT_I]], label %[[TRAP_I:.*]], label %[[CONT_I:.*]], !prof [[PROF9]], !nosanitize [[META7]] +// MERGE: [[TRAP_I]]: +// MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR6]], !nosanitize [[META7]] +// MERGE-NEXT: unreachable, !nosanitize [[META7]] +// MERGE: [[CONT_I]]: +// MERGE-NEXT: [[TMP3:%.*]] = load i8, ptr [[TMP2]], align 4, !nosanitize [[META7]] +// MERGE-NEXT: [[TMP4:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP1]], metadata !"all-vtables"), !nosanitize [[META7]] +// MERGE-NEXT: [[TMP5:%.*]] = zext i1 [[TMP4]] to i64, !nosanitize [[META7]] +// 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 %[[HANDLER_CFI_CHECK_FAIL4_I:.*]] +// MERGE-NEXT: i8 3, label %[[HANDLER_CFI_CHECK_FAIL6_I:.*]] +// MERGE-NEXT: i8 4, label %[[TRAP_I]] +// MERGE-NEXT: ], !prof [[PROF10]] +// MERGE: [[HANDLER_CFI_CHECK_FAIL_I]]: +// MERGE-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP2]] to i64, !nosanitize [[META7]] +// MERGE-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META7]] +// MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP6]], i64 [[TMP7]], i64 [[TMP5]]) #[[ATTR7]], !nosanitize [[META7]] +// MERGE-NEXT: unreachable, !nosanitize [[META7]] +// MERGE: [[HANDLER_CFI_CHECK_FAIL4_I]]: +// MERGE-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP2]] to i64, !nosanitize [[META7]] +// MERGE-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META7]] +// MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP8]], i64 [[TMP9]], i64 [[TMP5]]) #[[ATTR7]], !nosanitize [[META7]] +// MERGE-NEXT: unreachable, !nosanitize [[META7]] +// MERGE: [[HANDLER_CFI_CHECK_FAIL6_I]]: +// MERGE-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP2]] to i64, !nosanitize [[META7]] +// MERGE-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META7]] +// MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP10]], i64 [[TMP11]], i64 [[TMP5]]) #[[ATTR7]], !nosanitize [[META7]] +// MERGE-NEXT: unreachable, !nosanitize [[META7]] +// MERGE: [[__CFI_CHECK_FAIL_EXIT]]: +// MERGE-NEXT: ret void +// +// +// NO-MERGE-LABEL: define dso_local void @caller( +// NO-MERGE-SAME: ptr noundef [[F:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] !type [[META4:![0-9]+]] !type [[META5:![0-9]+]] !type [[META6:![0-9]+]] { +// NO-MERGE-NEXT: [[ENTRY:.*:]] +// NO-MERGE-NEXT: [[TMP0:%.*]] = tail call i1 @llvm.type.test(ptr [[F]], metadata !"_ZTSFvvE"), !nosanitize [[META7:![0-9]+]] +// NO-MERGE-NEXT: br i1 [[TMP0]], label %[[CFI_CONT:.*]], label %[[CFI_SLOWPATH:.*]], !prof [[PROF8:![0-9]+]], !nosanitize [[META7]] +// NO-MERGE: [[CFI_SLOWPATH]]: +// NO-MERGE-NEXT: tail call void @__cfi_slowpath(i64 9080559750644022485, ptr [[F]]) #[[ATTR5:[0-9]+]], !nosanitize [[META7]] +// NO-MERGE-NEXT: br label %[[CFI_CONT]], !nosanitize [[META7]] +// NO-MERGE: [[CFI_CONT]]: +// NO-MERGE-NEXT: tail call void [[F]]() #[[ATTR5]] +// 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 [[META7]] +// NO-MERGE-NEXT: br i1 [[DOTNOT]], label %[[TRAP:.*]], label %[[CONT:.*]], !prof [[PROF9:![0-9]+]], !nosanitize [[META7]] +// NO-MERGE: [[TRAP]]: +// NO-MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR6:[0-9]+]], !nosanitize [[META7]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META7]] +// NO-MERGE: [[CONT]]: +// NO-MERGE-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP0]], align 4, !nosanitize [[META7]] +// NO-MERGE-NEXT: [[TMP3:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP1]], metadata !"all-vtables"), !nosanitize [[META7]] +// NO-MERGE-NEXT: [[TMP4:%.*]] = zext i1 [[TMP3]] to i64, !nosanitize [[META7]] +// NO-MERGE-NEXT: switch i8 [[TMP2]], label %[[CONT10:.*]] [ +// NO-MERGE-NEXT: i8 0, label %[[HANDLER_CFI_CHECK_FAIL:.*]] +// NO-MERGE-NEXT: i8 1, label %[[TRAP3:.*]] +// NO-MERGE-NEXT: i8 2, label %[[HANDLER_CFI_CHECK_FAIL5:.*]] +// NO-MERGE-NEXT: i8 3, label %[[HANDLER_CFI_CHECK_FAIL7:.*]] +// NO-MERGE-NEXT: i8 4, label %[[TRAP9:.*]] +// NO-MERGE-NEXT: ], !prof [[PROF10:![0-9]+]] +// NO-MERGE: [[HANDLER_CFI_CHECK_FAIL]]: +// NO-MERGE-NEXT: [[TMP5:%.*]] = ptrtoint ptr [[TMP0]] to i64, !nosanitize [[META7]] +// NO-MERGE-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META7]] +// NO-MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP5]], i64 [[TMP6]], i64 [[TMP4]]) #[[ATTR7:[0-9]+]], !nosanitize [[META7]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META7]] +// NO-MERGE: [[TRAP3]]: +// NO-MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR7]], !nosanitize [[META7]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META7]] +// NO-MERGE: [[HANDLER_CFI_CHECK_FAIL5]]: +// NO-MERGE-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP0]] to i64, !nosanitize [[META7]] +// NO-MERGE-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META7]] +// NO-MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP7]], i64 [[TMP8]], i64 [[TMP4]]) #[[ATTR7]], !nosanitize [[META7]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META7]] +// NO-MERGE: [[HANDLER_CFI_CHECK_FAIL7]]: +// NO-MERGE-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[TMP0]] to i64, !nosanitize [[META7]] +// NO-MERGE-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META7]] +// NO-MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP9]], i64 [[TMP10]], i64 [[TMP4]]) #[[ATTR7]], !nosanitize [[META7]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META7]] +// NO-MERGE: [[TRAP9]]: +// NO-MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR7]], !nosanitize [[META7]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META7]] +// NO-MERGE: [[CONT10]]: +// NO-MERGE-NEXT: ret void, !nosanitize [[META7]] +// +// +// 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 [[META7]] +// NO-MERGE-NEXT: br i1 [[DOTNOT_I]], label %[[TRAP_I:.*]], label %[[CONT_I:.*]], !prof [[PROF9]], !nosanitize [[META7]] +// NO-MERGE: [[TRAP_I]]: +// NO-MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR6]], !nosanitize [[META7]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META7]] +// NO-MERGE: [[CONT_I]]: +// NO-MERGE-NEXT: [[TMP3:%.*]] = load i8, ptr [[TMP2]], align 4, !nosanitize [[META7]] +// NO-MERGE-NEXT: [[TMP4:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP1]], metadata !"all-vtables"), !nosanitize [[META7]] +// NO-MERGE-NEXT: [[TMP5:%.*]] = zext i1 [[TMP4]] to i64, !nosanitize [[META7]] +// 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 %[[TRAP3_I:.*]] +// NO-MERGE-NEXT: i8 2, label %[[HANDLER_CFI_CHECK_FAIL5_I:.*]] +// NO-MERGE-NEXT: i8 3, label %[[HANDLER_CFI_CHECK_FAIL7_I:.*]] +// NO-MERGE-NEXT: i8 4, label %[[TRAP9_I:.*]] +// NO-MERGE-NEXT: ], !prof [[PROF10]] +// NO-MERGE: [[HANDLER_CFI_CHECK_FAIL_I]]: +// NO-MERGE-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP2]] to i64, !nosanitize [[META7]] +// NO-MERGE-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META7]] +// NO-MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP6]], i64 [[TMP7]], i64 [[TMP5]]) #[[ATTR7]], !nosanitize [[META7]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META7]] +// NO-MERGE: [[TRAP3_I]]: +// NO-MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR7]], !nosanitize [[META7]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META7]] +// NO-MERGE: [[HANDLER_CFI_CHECK_FAIL5_I]]: +// NO-MERGE-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP2]] to i64, !nosanitize [[META7]] +// NO-MERGE-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META7]] +// NO-MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP8]], i64 [[TMP9]], i64 [[TMP5]]) #[[ATTR7]], !nosanitize [[META7]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META7]] +// NO-MERGE: [[HANDLER_CFI_CHECK_FAIL7_I]]: +// NO-MERGE-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP2]] to i64, !nosanitize [[META7]] +// NO-MERGE-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP1]] to i64, !nosanitize [[META7]] +// NO-MERGE-NEXT: tail call void @__ubsan_handle_cfi_check_fail_abort(i64 [[TMP10]], i64 [[TMP11]], i64 [[TMP5]]) #[[ATTR7]], !nosanitize [[META7]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META7]] +// NO-MERGE: [[TRAP9_I]]: +// NO-MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR7]], !nosanitize [[META7]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META7]] +// NO-MERGE: [[__CFI_CHECK_FAIL_EXIT]]: +// NO-MERGE-NEXT: ret void + +// MERGE: [[ATTR5]] = { nounwind } +// MERGE: [[ATTR6]] = { noreturn nounwind } + +// NO-MERGE: [[ATTR6]] = { noreturn nounwind } +// NO-MERGE: [[ATTR7]] = { nomerge noreturn nounwind } diff --git a/clang/test/CodeGen/cfi-check-fail2-nomerge.c b/clang/test/CodeGen/cfi-check-fail2-nomerge.c new file mode 100644 index 0000000000000..76ebec9c08c11 --- /dev/null +++ b/clang/test/CodeGen/cfi-check-fail2-nomerge.c @@ -0,0 +1,206 @@ +// 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 } diff --git a/clang/test/CodeGenCXX/cfi-mfcall-nomerge.cpp b/clang/test/CodeGenCXX/cfi-mfcall-nomerge.cpp new file mode 100644 index 0000000000000..c1ee5af7254a0 --- /dev/null +++ b/clang/test/CodeGenCXX/cfi-mfcall-nomerge.cpp @@ -0,0 +1,131 @@ +// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --include-generated-funcs --version 5 +// with MERGE/NO-MERGE assertions added manually. + +// N.B. although the clang driver defaults to merge, clang_cc1 defaults to non-merge. +// (This is similar to -fsanitize-recover, for which the default is also applied +// at the driver level only.) + +// If optimization is disabled, merging is disabled (overrides -fsanitize-merge). + +// RUN: %clang_cc1 -O3 -triple x86_64-unknown-linux -fsanitize=cfi-mfcall -fsanitize-trap=cfi-mfcall -fvisibility=hidden -emit-llvm -o - %s | FileCheck %s --check-prefixes=NO-MERGE +// RUN: %clang_cc1 -O3 -triple x86_64-unknown-linux -fsanitize-merge=cfi-mfcall -fsanitize=cfi-mfcall -fsanitize-trap=cfi-mfcall -fvisibility=hidden -emit-llvm -o - %s | FileCheck %s --check-prefixes=MERGE + +struct B1 {}; +struct B2 {}; +struct B3 : B2 {}; +struct S : B1, B3 {}; + +void f(S *s, void (S::*p)()) { + (s->*p)(); + (s->*p)(); + (s->*p)(); +} + +// NO-MERGE-LABEL: define hidden void @_Z1fP1SMS_FvvE( +// NO-MERGE-SAME: ptr noundef [[S:%.*]], i64 [[P_COERCE0:%.*]], i64 [[P_COERCE1:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] { +// NO-MERGE-NEXT: [[ENTRY:.*:]] +// NO-MERGE-NEXT: [[TMP0:%.*]] = getelementptr inbounds i8, ptr [[S]], i64 [[P_COERCE1]] +// NO-MERGE-NEXT: [[TMP1:%.*]] = and i64 [[P_COERCE0]], 1 +// NO-MERGE-NEXT: [[MEMPTR_ISVIRTUAL_NOT:%.*]] = icmp eq i64 [[TMP1]], 0 +// NO-MERGE-NEXT: br i1 [[MEMPTR_ISVIRTUAL_NOT]], label %[[MEMPTR_NONVIRTUAL:.*]], label %[[MEMPTR_VIRTUAL:.*]] +// NO-MERGE: [[MEMPTR_VIRTUAL]]: +// NO-MERGE-NEXT: [[VTABLE:%.*]] = load ptr, ptr [[TMP0]], align 8, !tbaa [[TBAA2:![0-9]+]] +// NO-MERGE-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[VTABLE]], i64 [[P_COERCE0]] +// NO-MERGE-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP2]], i64 -1 +// NO-MERGE-NEXT: [[TMP4:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP3]], metadata !"_ZTSM1SFvvE.virtual"), !nosanitize [[META5:![0-9]+]] +// NO-MERGE-NEXT: br i1 [[TMP4]], label %[[MEMPTR_VIRTUAL7:.*]], label %[[TRAP:.*]], !prof [[PROF6:![0-9]+]], !nosanitize [[META5]] +// NO-MERGE: [[TRAP]]: +// NO-MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR3:[0-9]+]], !nosanitize [[META5]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META5]] +// NO-MERGE: [[MEMPTR_NONVIRTUAL]]: +// NO-MERGE-NEXT: [[MEMPTR_NONVIRTUALFN:%.*]] = inttoptr i64 [[P_COERCE0]] to ptr +// NO-MERGE-NEXT: [[TMP5:%.*]] = tail call i1 @llvm.type.test(ptr [[MEMPTR_NONVIRTUALFN]], metadata !"_ZTSM2B1FvvE") +// NO-MERGE-NEXT: [[TMP6:%.*]] = tail call i1 @llvm.type.test(ptr [[MEMPTR_NONVIRTUALFN]], metadata !"_ZTSM2B2FvvE") +// NO-MERGE-NEXT: [[TMP7:%.*]] = or i1 [[TMP5]], [[TMP6]], !nosanitize [[META5]] +// NO-MERGE-NEXT: br i1 [[TMP7]], label %[[MEMPTR_NONVIRTUAL23:.*]], label %[[TRAP2:.*]], !prof [[PROF6]], !nosanitize [[META5]] +// NO-MERGE: [[TRAP2]]: +// NO-MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR4:[0-9]+]], !nosanitize [[META5]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META5]] +// NO-MERGE: [[MEMPTR_VIRTUAL7]]: +// NO-MERGE-NEXT: [[MEMPTR_VIRTUALFN:%.*]] = load ptr, ptr [[TMP3]], align 8, !nosanitize [[META5]] +// NO-MERGE-NEXT: tail call void [[MEMPTR_VIRTUALFN]](ptr noundef nonnull align 1 dereferenceable(1) [[TMP0]]) #[[ATTR5:[0-9]+]] +// NO-MERGE-NEXT: [[VTABLE8:%.*]] = load ptr, ptr [[TMP0]], align 8, !tbaa [[TBAA2]] +// NO-MERGE-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[VTABLE8]], i64 [[P_COERCE0]] +// NO-MERGE-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[TMP8]], i64 -1 +// NO-MERGE-NEXT: [[TMP10:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP9]], metadata !"_ZTSM1SFvvE.virtual"), !nosanitize [[META5]] +// NO-MERGE-NEXT: br i1 [[TMP10]], label %[[MEMPTR_VIRTUAL19:.*]], label %[[TRAP2]], !prof [[PROF6]], !nosanitize [[META5]] +// NO-MERGE: [[TRAP13:.*]]: +// NO-MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR4]], !nosanitize [[META5]] +// NO-MERGE-NEXT: unreachable, !nosanitize [[META5]] +// NO-MERGE: [[MEMPTR_VIRTUAL19]]: +// NO-MERGE-NEXT: [[MEMPTR_VIRTUALFN9:%.*]] = load ptr, ptr [[TMP9]], align 8, !nosanitize [[META5]] +// NO-MERGE-NEXT: tail call void [[MEMPTR_VIRTUALFN9]](ptr noundef nonnull align 1 dereferenceable(1) [[TMP0]]) #[[ATTR5]] +// NO-MERGE-NEXT: [[VTABLE20:%.*]] = load ptr, ptr [[TMP0]], align 8, !tbaa [[TBAA2]] +// NO-MERGE-NEXT: [[TMP11:%.*]] = getelementptr i8, ptr [[VTABLE20]], i64 [[P_COERCE0]] +// NO-MERGE-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[TMP11]], i64 -1 +// NO-MERGE-NEXT: [[TMP13:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP12]], metadata !"_ZTSM1SFvvE.virtual"), !nosanitize [[META5]] +// NO-MERGE-NEXT: [[MEMPTR_VIRTUALFN21:%.*]] = load ptr, ptr [[TMP12]], align 8, !nosanitize [[META5]] +// NO-MERGE-NEXT: br i1 [[TMP13]], label %[[MEMPTR_END27:.*]], label %[[TRAP13]], !prof [[PROF6]], !nosanitize [[META5]] +// NO-MERGE: [[MEMPTR_NONVIRTUAL23]]: +// NO-MERGE-NEXT: tail call void [[MEMPTR_NONVIRTUALFN]](ptr noundef nonnull align 1 dereferenceable(1) [[TMP0]]) #[[ATTR5]] +// NO-MERGE-NEXT: tail call void [[MEMPTR_NONVIRTUALFN]](ptr noundef nonnull align 1 dereferenceable(1) [[TMP0]]) #[[ATTR5]] +// NO-MERGE-NEXT: br label %[[MEMPTR_END27]] +// NO-MERGE: [[MEMPTR_END27]]: +// NO-MERGE-NEXT: [[TMP14:%.*]] = phi ptr [ [[MEMPTR_VIRTUALFN21]], %[[MEMPTR_VIRTUAL19]] ], [ [[MEMPTR_NONVIRTUALFN]], %[[MEMPTR_NONVIRTUAL23]] ] +// NO-MERGE-NEXT: tail call void [[TMP14]](ptr noundef nonnull align 1 dereferenceable(1) [[TMP0]]) #[[ATTR5]] +// NO-MERGE-NEXT: ret void +// +// +// MERGE-LABEL: define hidden void @_Z1fP1SMS_FvvE( +// MERGE-SAME: ptr noundef [[S:%.*]], i64 [[P_COERCE0:%.*]], i64 [[P_COERCE1:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] { +// MERGE-NEXT: [[ENTRY:.*:]] +// MERGE-NEXT: [[TMP0:%.*]] = getelementptr inbounds i8, ptr [[S]], i64 [[P_COERCE1]] +// MERGE-NEXT: [[TMP1:%.*]] = and i64 [[P_COERCE0]], 1 +// MERGE-NEXT: [[MEMPTR_ISVIRTUAL_NOT:%.*]] = icmp eq i64 [[TMP1]], 0 +// MERGE-NEXT: br i1 [[MEMPTR_ISVIRTUAL_NOT]], label %[[MEMPTR_NONVIRTUAL:.*]], label %[[MEMPTR_VIRTUAL:.*]] +// MERGE: [[MEMPTR_VIRTUAL]]: +// MERGE-NEXT: [[VTABLE:%.*]] = load ptr, ptr [[TMP0]], align 8, !tbaa [[TBAA2:![0-9]+]] +// MERGE-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[VTABLE]], i64 [[P_COERCE0]] +// MERGE-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP2]], i64 -1 +// MERGE-NEXT: [[TMP4:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP3]], metadata !"_ZTSM1SFvvE.virtual"), !nosanitize [[META5:![0-9]+]] +// MERGE-NEXT: br i1 [[TMP4]], label %[[MEMPTR_VIRTUAL6:.*]], label %[[TRAP:.*]], !prof [[PROF6:![0-9]+]], !nosanitize [[META5]] +// MERGE: [[TRAP]]: +// MERGE-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR3:[0-9]+]], !nosanitize [[META5]] +// MERGE-NEXT: unreachable, !nosanitize [[META5]] +// MERGE: [[MEMPTR_NONVIRTUAL]]: +// MERGE-NEXT: [[MEMPTR_NONVIRTUALFN:%.*]] = inttoptr i64 [[P_COERCE0]] to ptr +// MERGE-NEXT: [[TMP5:%.*]] = tail call i1 @llvm.type.test(ptr [[MEMPTR_NONVIRTUALFN]], metadata !"_ZTSM2B1FvvE") +// MERGE-NEXT: [[TMP6:%.*]] = tail call i1 @llvm.type.test(ptr [[MEMPTR_NONVIRTUALFN]], metadata !"_ZTSM2B2FvvE") +// MERGE-NEXT: [[TMP7:%.*]] = or i1 [[TMP5]], [[TMP6]], !nosanitize [[META5]] +// MERGE-NEXT: br i1 [[TMP7]], label %[[MEMPTR_NONVIRTUAL21:.*]], label %[[TRAP]], !prof [[PROF6]], !nosanitize [[META5]] +// MERGE: [[MEMPTR_VIRTUAL6]]: +// MERGE-NEXT: [[MEMPTR_VIRTUALFN:%.*]] = load ptr, ptr [[TMP3]], align 8, !nosanitize [[META5]] +// MERGE-NEXT: tail call void [[MEMPTR_VIRTUALFN]](ptr noundef nonnull align 1 dereferenceable(1) [[TMP0]]) #[[ATTR4:[0-9]+]] +// MERGE-NEXT: [[VTABLE7:%.*]] = load ptr, ptr [[TMP0]], align 8, !tbaa [[TBAA2]] +// MERGE-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[VTABLE7]], i64 [[P_COERCE0]] +// MERGE-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[TMP8]], i64 -1 +// MERGE-NEXT: [[TMP10:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP9]], metadata !"_ZTSM1SFvvE.virtual"), !nosanitize [[META5]] +// MERGE-NEXT: br i1 [[TMP10]], label %[[MEMPTR_VIRTUAL17:.*]], label %[[TRAP]], !prof [[PROF6]], !nosanitize [[META5]] +// MERGE: [[MEMPTR_VIRTUAL17]]: +// MERGE-NEXT: [[MEMPTR_VIRTUALFN8:%.*]] = load ptr, ptr [[TMP9]], align 8, !nosanitize [[META5]] +// MERGE-NEXT: tail call void [[MEMPTR_VIRTUALFN8]](ptr noundef nonnull align 1 dereferenceable(1) [[TMP0]]) #[[ATTR4]] +// MERGE-NEXT: [[VTABLE18:%.*]] = load ptr, ptr [[TMP0]], align 8, !tbaa [[TBAA2]] +// MERGE-NEXT: [[TMP11:%.*]] = getelementptr i8, ptr [[VTABLE18]], i64 [[P_COERCE0]] +// MERGE-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[TMP11]], i64 -1 +// MERGE-NEXT: [[TMP13:%.*]] = tail call i1 @llvm.type.test(ptr [[TMP12]], metadata !"_ZTSM1SFvvE.virtual"), !nosanitize [[META5]] +// MERGE-NEXT: [[MEMPTR_VIRTUALFN19:%.*]] = load ptr, ptr [[TMP12]], align 8, !nosanitize [[META5]] +// MERGE-NEXT: br i1 [[TMP13]], label %[[MEMPTR_END24:.*]], label %[[TRAP]], !prof [[PROF6]], !nosanitize [[META5]] +// MERGE: [[MEMPTR_NONVIRTUAL21]]: +// MERGE-NEXT: tail call void [[MEMPTR_NONVIRTUALFN]](ptr noundef nonnull align 1 dereferenceable(1) [[TMP0]]) #[[ATTR4]] +// MERGE-NEXT: tail call void [[MEMPTR_NONVIRTUALFN]](ptr noundef nonnull align 1 dereferenceable(1) [[TMP0]]) #[[ATTR4]] +// MERGE-NEXT: br label %[[MEMPTR_END24]] +// MERGE: [[MEMPTR_END24]]: +// MERGE-NEXT: [[TMP14:%.*]] = phi ptr [ [[MEMPTR_VIRTUALFN19]], %[[MEMPTR_VIRTUAL17]] ], [ [[MEMPTR_NONVIRTUALFN]], %[[MEMPTR_NONVIRTUAL21]] ] +// MERGE-NEXT: tail call void [[TMP14]](ptr noundef nonnull align 1 dereferenceable(1) [[TMP0]]) #[[ATTR4]] +// MERGE-NEXT: ret void + +// MERGE: [[ATTR3]] = { noreturn nounwind } +// MERGE: [[ATTR4]] = { nounwind } + +// NO-MERGE: [[ATTR4]] = { nomerge noreturn nounwind } +// NO-MERGE: [[ATTR5]] = { nounwind } _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
