| // RUN: %clang_cc1 -x c -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s |
| // RUN: %clang_cc1 -x c -fsanitize=pointer-overflow -fno-sanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-C,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE |
| // RUN: %clang_cc1 -x c -fsanitize=pointer-overflow -fsanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-C,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER |
| // RUN: %clang_cc1 -x c -fsanitize=pointer-overflow -fsanitize-trap=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-C,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE |
| |
| // RUN: %clang_cc1 -x c++ -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s |
| // RUN: %clang_cc1 -x c++ -fsanitize=pointer-overflow -fno-sanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-CPP,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE |
| // RUN: %clang_cc1 -x c++ -fsanitize=pointer-overflow -fsanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-CPP,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER |
| // RUN: %clang_cc1 -x c++ -fsanitize=pointer-overflow -fsanitize-trap=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-CPP,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE |
| |
| // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_100:.*]] = {{.*}}, i32 100, i32 15 } } |
| // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_200:.*]] = {{.*}}, i32 200, i32 15 } } |
| // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_300:.*]] = {{.*}}, i32 300, i32 15 } } |
| // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_400:.*]] = {{.*}}, i32 400, i32 15 } } |
| // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_500:.*]] = {{.*}}, i32 500, i32 7 } } |
| // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_600:.*]] = {{.*}}, i32 600, i32 7 } } |
| // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_700:.*]] = {{.*}}, i32 700, i32 3 } } |
| // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_800:.*]] = {{.*}}, i32 800, i32 3 } } |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| char *add_unsigned(char *base, unsigned long offset) { |
| // CHECK: define{{.*}} i8* @add_unsigned(i8* %[[BASE:.*]], i64 %[[OFFSET:.*]]) |
| // CHECK-NEXT: [[ENTRY:.*]]: |
| // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 |
| // CHECK-NEXT: %[[OFFSET_ADDR:.*]] = alloca i64, align 8 |
| // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: store i64 %[[OFFSET]], i64* %[[OFFSET_ADDR]], align 8 |
| // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[OFFSET_RELOADED:.*]] = load i64, i64* %[[OFFSET_ADDR]], align 8 |
| // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[BASE_RELOADED]], i64 %[[OFFSET_RELOADED]] |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_AGGREGATE:.*]] = call { i64, i1 } @llvm.smul.with.overflow.i64(i64 1, i64 %[[OFFSET_RELOADED]]), !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_OVERFLOWED:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 1, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 0, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint i8* %[[BASE_RELOADED]] to i64, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], %[[COMPUTED_OFFSET]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne i8* %[[BASE_RELOADED]], null, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize |
| // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW:.*]] = xor i1 %[[COMPUTED_OFFSET_OVERFLOWED]], true, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_UGE_BASE:.*]] = icmp uge i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[GEP_DID_NOT_OVERFLOW:.*]] = and i1 %[[COMPUTED_GEP_IS_UGE_BASE]], %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[GEP_DID_NOT_OVERFLOW]], !nosanitize |
| // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize |
| // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]: |
| // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(i8* bitcast ({ {{{.*}}} }* @[[LINE_100]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_100]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize |
| // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize |
| // CHECK-SANITIZE: [[CONT]]: |
| // CHECK-NEXT: ret i8* %[[ADD_PTR]] |
| #line 100 |
| return base + offset; |
| } |
| |
| char *sub_unsigned(char *base, unsigned long offset) { |
| // CHECK: define{{.*}} i8* @sub_unsigned(i8* %[[BASE:.*]], i64 %[[OFFSET:.*]]) |
| // CHECK-NEXT: [[ENTRY:.*]]: |
| // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 |
| // CHECK-NEXT: %[[OFFSET_ADDR:.*]] = alloca i64, align 8 |
| // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: store i64 %[[OFFSET]], i64* %[[OFFSET_ADDR]], align 8 |
| // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[OFFSET_RELOADED:.*]] = load i64, i64* %[[OFFSET_ADDR]], align 8 |
| // CHECK-NEXT: %[[IDX_NEG:.*]] = sub i64 0, %[[OFFSET_RELOADED]] |
| // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[BASE_RELOADED]], i64 %[[IDX_NEG]] |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_AGGREGATE:.*]] = call { i64, i1 } @llvm.smul.with.overflow.i64(i64 1, i64 %[[IDX_NEG]]), !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_OVERFLOWED:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 1, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 0, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint i8* %[[BASE_RELOADED]] to i64, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], %[[COMPUTED_OFFSET]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne i8* %[[BASE_RELOADED]], null, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize |
| // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW:.*]] = xor i1 %[[COMPUTED_OFFSET_OVERFLOWED]], true, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_ULE_BASE:.*]] = icmp ule i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[GEP_DID_NOT_OVERFLOW:.*]] = and i1 %[[COMPUTED_GEP_IS_ULE_BASE]], %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[GEP_DID_NOT_OVERFLOW]], !nosanitize |
| // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize |
| // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]: |
| // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(i8* bitcast ({ {{{.*}}} }* @[[LINE_200]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_200]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize |
| // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize |
| // CHECK-SANITIZE: [[CONT]]: |
| // CHECK-NEXT: ret i8* %[[ADD_PTR]] |
| #line 200 |
| return base - offset; |
| } |
| |
| char *add_signed(char *base, signed long offset) { |
| // CHECK: define{{.*}} i8* @add_signed(i8* %[[BASE:.*]], i64 %[[OFFSET:.*]]) |
| // CHECK-NEXT: [[ENTRY:.*]]: |
| // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 |
| // CHECK-NEXT: %[[OFFSET_ADDR:.*]] = alloca i64, align 8 |
| // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: store i64 %[[OFFSET]], i64* %[[OFFSET_ADDR]], align 8 |
| // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[OFFSET_RELOADED:.*]] = load i64, i64* %[[OFFSET_ADDR]], align 8 |
| // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[BASE_RELOADED]], i64 %[[OFFSET_RELOADED]] |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_AGGREGATE:.*]] = call { i64, i1 } @llvm.smul.with.overflow.i64(i64 1, i64 %[[OFFSET_RELOADED]]), !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_OVERFLOWED:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 1, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 0, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint i8* %[[BASE_RELOADED]] to i64, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], %[[COMPUTED_OFFSET]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne i8* %[[BASE_RELOADED]], null, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize |
| // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW:.*]] = xor i1 %[[COMPUTED_OFFSET_OVERFLOWED]], true, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[POSORZEROVALID:.*]] = icmp uge i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[POSORZEROOFFSET:.*]] = icmp sge i64 %[[COMPUTED_OFFSET]], 0, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[NEGVALID:.*]] = icmp ult i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[APPLYING_OFFSET_DID_NOT_OVERFLOW:.*]] = select i1 %[[POSORZEROOFFSET]], i1 %[[POSORZEROVALID]], i1 %[[NEGVALID]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[GEP_DID_NOT_OVERFLOW:.*]] = and i1 %[[APPLYING_OFFSET_DID_NOT_OVERFLOW]], %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[GEP_DID_NOT_OVERFLOW]], !nosanitize |
| // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize |
| // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]: |
| // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(i8* bitcast ({ {{{.*}}} }* @[[LINE_300]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_300]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize |
| // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize |
| // CHECK-SANITIZE: [[CONT]]: |
| // CHECK-NEXT: ret i8* %[[ADD_PTR]] |
| #line 300 |
| return base + offset; |
| } |
| |
| char *sub_signed(char *base, signed long offset) { |
| // CHECK: define{{.*}} i8* @sub_signed(i8* %[[BASE:.*]], i64 %[[OFFSET:.*]]) |
| // CHECK-NEXT: [[ENTRY:.*]]: |
| // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 |
| // CHECK-NEXT: %[[OFFSET_ADDR:.*]] = alloca i64, align 8 |
| // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: store i64 %[[OFFSET]], i64* %[[OFFSET_ADDR]], align 8 |
| // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[OFFSET_RELOADED:.*]] = load i64, i64* %[[OFFSET_ADDR]], align 8 |
| // CHECK-NEXT: %[[IDX_NEG:.*]] = sub i64 0, %[[OFFSET_RELOADED]] |
| // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[BASE_RELOADED]], i64 %[[IDX_NEG]] |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_AGGREGATE:.*]] = call { i64, i1 } @llvm.smul.with.overflow.i64(i64 1, i64 %[[IDX_NEG]]), !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_OVERFLOWED:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 1, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 0, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint i8* %[[BASE_RELOADED]] to i64, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], %[[COMPUTED_OFFSET]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne i8* %[[BASE_RELOADED]], null, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize |
| // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW:.*]] = xor i1 %[[COMPUTED_OFFSET_OVERFLOWED]], true, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[POSORZEROVALID:.*]] = icmp uge i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[POSORZEROOFFSET:.*]] = icmp sge i64 %[[COMPUTED_OFFSET]], 0, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[NEGVALID:.*]] = icmp ult i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[APPLYING_OFFSET_DID_NOT_OVERFLOW:.*]] = select i1 %[[POSORZEROOFFSET]], i1 %[[POSORZEROVALID]], i1 %[[NEGVALID]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[GEP_DID_NOT_OVERFLOW:.*]] = and i1 %[[APPLYING_OFFSET_DID_NOT_OVERFLOW]], %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[GEP_DID_NOT_OVERFLOW]], !nosanitize |
| // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize |
| // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]: |
| // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(i8* bitcast ({ {{{.*}}} }* @[[LINE_400]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_400]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize |
| // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize |
| // CHECK-SANITIZE: [[CONT]]: |
| // CHECK-NEXT: ret i8* %[[ADD_PTR]] |
| #line 400 |
| return base - offset; |
| } |
| |
| char *postinc(char *base) { |
| // CHECK: define{{.*}} i8* @postinc(i8* %[[BASE:.*]]) |
| // CHECK-NEXT: [[ENTRY:.*]]: |
| // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 |
| // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[BASE_RELOADED]], i32 1 |
| // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint i8* %[[BASE_RELOADED]] to i64, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], 1, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne i8* %[[BASE_RELOADED]], null, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize |
| // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_UGE_BASE:.*]] = icmp uge i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[COMPUTED_GEP_IS_UGE_BASE]], !nosanitize |
| // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize |
| // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]: |
| // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(i8* bitcast ({ {{{.*}}} }* @[[LINE_500]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_500]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize |
| // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize |
| // CHECK-SANITIZE: [[CONT]]: |
| // CHECK-NEXT: store i8* %[[ADD_PTR]], i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[ADD_PTR_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: ret i8* %[[ADD_PTR_RELOADED]] |
| #line 500 |
| base++; |
| return base; |
| } |
| |
| char *postdec(char *base) { |
| // CHECK: define{{.*}} i8* @postdec(i8* %[[BASE:.*]]) |
| // CHECK-NEXT: [[ENTRY:.*]]: |
| // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 |
| // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[BASE_RELOADED]], i32 -1 |
| // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint i8* %[[BASE_RELOADED]] to i64, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], -1, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne i8* %[[BASE_RELOADED]], null, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize |
| // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_ULE_BASE:.*]] = icmp ule i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[COMPUTED_GEP_IS_ULE_BASE]], !nosanitize |
| // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize |
| // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]: |
| // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(i8* bitcast ({ {{{.*}}} }* @[[LINE_600]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_600]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize |
| // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize |
| // CHECK-SANITIZE: [[CONT]]: |
| // CHECK-NEXT: store i8* %[[ADD_PTR]], i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[ADD_PTR_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: ret i8* %[[ADD_PTR_RELOADED]] |
| #line 600 |
| base--; |
| return base; |
| } |
| |
| char *preinc(char *base) { |
| // CHECK: define{{.*}} i8* @preinc(i8* %[[BASE:.*]]) |
| // CHECK-NEXT: [[ENTRY:.*]]: |
| // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 |
| // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[BASE_RELOADED]], i32 1 |
| // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint i8* %[[BASE_RELOADED]] to i64, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], 1, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne i8* %[[BASE_RELOADED]], null, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize |
| // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_UGE_BASE:.*]] = icmp uge i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[COMPUTED_GEP_IS_UGE_BASE]], !nosanitize |
| // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize |
| // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]: |
| // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(i8* bitcast ({ {{{.*}}} }* @[[LINE_700]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_700]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize |
| // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize |
| // CHECK-SANITIZE: [[CONT]]: |
| // CHECK-NEXT: store i8* %[[ADD_PTR]], i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[ADD_PTR_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: ret i8* %[[ADD_PTR_RELOADED]] |
| #line 700 |
| ++base; |
| return base; |
| } |
| |
| char *predec(char *base) { |
| // CHECK: define{{.*}} i8* @predec(i8* %[[BASE:.*]]) |
| // CHECK-NEXT: [[ENTRY:.*]]: |
| // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 |
| // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[BASE_RELOADED]], i32 -1 |
| // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint i8* %[[BASE_RELOADED]] to i64, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], -1, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne i8* %[[BASE_RELOADED]], null, !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize |
| // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_ULE_BASE:.*]] = icmp ule i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize |
| // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[COMPUTED_GEP_IS_ULE_BASE]], !nosanitize |
| // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize |
| // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]: |
| // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(i8* bitcast ({ {{{.*}}} }* @[[LINE_800]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_800]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) |
| // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize |
| // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize |
| // CHECK-SANITIZE: [[CONT]]: |
| // CHECK-NEXT: store i8* %[[ADD_PTR]], i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: %[[ADD_PTR_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 |
| // CHECK-NEXT: ret i8* %[[ADD_PTR_RELOADED]] |
| #line 800 |
| --base; |
| return base; |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |
