41 lines · c
1// RUN: %clang_cc1 -fsanitize=implicit-signed-integer-truncation -fsanitize-recover=implicit-signed-integer-truncation -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK2 3// CHECK-DAG: @[[LINE_100_SIGNED_TRUNCATION:.*]] = {{.*}}, i32 100, i32 10 }, {{.*}}, {{.*}}, i8 2, i32 0 }4// CHECK-DAG: @[[LINE_200_SIGNED_TRUNCATION:.*]] = {{.*}}, i32 200, i32 10 }, {{.*}}, {{.*}}, i8 2, i32 0 }5 6// CHECK-LABEL: @ignorelist_0_convert_signed_int_to_signed_char7__attribute__((no_sanitize("undefined"))) signed char ignorelist_0_convert_signed_int_to_signed_char(signed int x) {8 // We are not in "undefined" group, so that doesn't work.9 // CHECK: call void @__ubsan_handle_implicit_conversion(ptr @[[LINE_100_SIGNED_TRUNCATION]]10#line 10011 return x;12}13 14// CHECK-LABEL: @ignorelist_1_convert_signed_int_to_signed_char15__attribute__((no_sanitize("integer"))) signed char ignorelist_1_convert_signed_int_to_signed_char(signed int x) {16 return x;17}18 19// CHECK-LABEL: @ignorelist_2_convert_signed_int_to_signed_char20__attribute__((no_sanitize("implicit-conversion"))) signed char ignorelist_2_convert_signed_int_to_signed_char(signed int x) {21 return x;22}23 24// CHECK-LABEL: @ignorelist_3_convert_signed_int_to_signed_char25__attribute__((no_sanitize("implicit-integer-truncation"))) signed char ignorelist_3_convert_signed_int_to_signed_char(signed int x) {26 return x;27}28 29// CHECK-LABEL: @ignorelist_4_convert_signed_int_to_signed_char30__attribute__((no_sanitize("implicit-signed-integer-truncation"))) signed char ignorelist_4_convert_signed_int_to_signed_char(signed int x) {31 return x;32}33 34// CHECK-LABEL: @ignorelist_5_convert_signed_int_to_signed_char35__attribute__((no_sanitize("implicit-unsigned-integer-truncation"))) signed char ignorelist_5_convert_signed_int_to_signed_char(signed int x) {36 // This is an signed truncation, not unsigned-one.37 // CHECK: call void @__ubsan_handle_implicit_conversion(ptr @[[LINE_200_SIGNED_TRUNCATION]]38#line 20039 return x;40}41