forked from OSchip/llvm-project
153 lines
4.9 KiB
C
153 lines
4.9 KiB
C
// RUN: %clang_cc1 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion"
|
|
// RUN: %clang_cc1 -fsanitize=implicit-integer-sign-change -fno-sanitize-recover=implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE
|
|
// RUN: %clang_cc1 -fsanitize=implicit-integer-sign-change -fsanitize-recover=implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE
|
|
// RUN: %clang_cc1 -fsanitize=implicit-integer-sign-change -fsanitize-trap=implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE
|
|
|
|
// ========================================================================== //
|
|
// The expected true-negatives.
|
|
// ========================================================================== //
|
|
|
|
// Sanitization is explicitly disabled.
|
|
// ========================================================================== //
|
|
|
|
// CHECK-LABEL: @blacklist_0
|
|
__attribute__((no_sanitize("undefined"))) unsigned int blacklist_0(signed int src) {
|
|
// We are not in "undefined" group, so that doesn't work.
|
|
// CHECK-SANITIZE: call
|
|
return src;
|
|
}
|
|
|
|
// CHECK-LABEL: @blacklist_1
|
|
__attribute__((no_sanitize("integer"))) unsigned int blacklist_1(signed int src) {
|
|
return src;
|
|
}
|
|
|
|
// CHECK-LABEL: @blacklist_2
|
|
__attribute__((no_sanitize("implicit-conversion"))) unsigned int blacklist_2(signed int src) {
|
|
return src;
|
|
}
|
|
|
|
// CHECK-LABEL: @blacklist_3
|
|
__attribute__((no_sanitize("implicit-integer-sign-change"))) unsigned int blacklist_3(signed int src) {
|
|
return src;
|
|
}
|
|
|
|
// Explicit sign-changing conversions.
|
|
// ========================================================================== //
|
|
|
|
// CHECK-LABEL: explicit_signed_int_to_unsigned_int
|
|
unsigned int explicit_signed_int_to_unsigned_int(signed int src) {
|
|
return (unsigned int)src;
|
|
}
|
|
|
|
// CHECK-LABEL: explicit_unsigned_int_to_signed_int
|
|
signed int explicit_unsigned_int_to_signed_int(unsigned int src) {
|
|
return (signed int)src;
|
|
}
|
|
|
|
// Explicit NOP conversions.
|
|
// ========================================================================== //
|
|
|
|
// CHECK-LABEL: @explicit_ununsigned_int_to_ununsigned_int
|
|
unsigned int explicit_ununsigned_int_to_ununsigned_int(unsigned int src) {
|
|
return (unsigned int)src;
|
|
}
|
|
|
|
// CHECK-LABEL: @explicit_unsigned_int_to_unsigned_int
|
|
signed int explicit_unsigned_int_to_unsigned_int(signed int src) {
|
|
return (signed int)src;
|
|
}
|
|
|
|
// conversions to to boolean type are not counted as sign-change.
|
|
// ========================================================================== //
|
|
|
|
// CHECK-LABEL: @unsigned_int_to_bool
|
|
_Bool unsigned_int_to_bool(unsigned int src) {
|
|
return src;
|
|
}
|
|
|
|
// CHECK-LABEL: @signed_int_to_bool
|
|
_Bool signed_int_to_bool(signed int src) {
|
|
return src;
|
|
}
|
|
|
|
// CHECK-LABEL: @explicit_unsigned_int_to_bool
|
|
_Bool explicit_unsigned_int_to_bool(unsigned int src) {
|
|
return (_Bool)src;
|
|
}
|
|
|
|
// CHECK-LABEL: @explicit_signed_int_to_bool
|
|
_Bool explicit_signed_int_to_bool(signed int src) {
|
|
return (_Bool)src;
|
|
}
|
|
|
|
// Explicit conversions from pointer to an integer.
|
|
// Can not have an implicit conversion from pointer to an integer.
|
|
// Can not have an implicit conversion between two enums.
|
|
// ========================================================================== //
|
|
|
|
// CHECK-LABEL: @explicit_voidptr_to_unsigned_int
|
|
unsigned int explicit_voidptr_to_unsigned_int(void *src) {
|
|
return (unsigned int)src;
|
|
}
|
|
|
|
// CHECK-LABEL: @explicit_voidptr_to_signed_int
|
|
signed int explicit_voidptr_to_signed_int(void *src) {
|
|
return (signed int)src;
|
|
}
|
|
|
|
// Implicit conversions from floating-point.
|
|
// ========================================================================== //
|
|
|
|
// CHECK-LABEL: @float_to_unsigned_int
|
|
unsigned int float_to_unsigned_int(float src) {
|
|
return src;
|
|
}
|
|
|
|
// CHECK-LABEL: @float_to_signed_int
|
|
signed int float_to_signed_int(float src) {
|
|
return src;
|
|
}
|
|
|
|
// CHECK-LABEL: @double_to_unsigned_int
|
|
unsigned int double_to_unsigned_int(double src) {
|
|
return src;
|
|
}
|
|
|
|
// CHECK-LABEL: @double_to_signed_int
|
|
signed int double_to_signed_int(double src) {
|
|
return src;
|
|
}
|
|
|
|
// Sugar.
|
|
// ========================================================================== //
|
|
|
|
typedef unsigned int uint32_t;
|
|
|
|
// CHECK-LABEL: @uint32_to_unsigned_int
|
|
unsigned int uint32_to_unsigned_int(uint32_t src) {
|
|
return src;
|
|
}
|
|
|
|
// CHECK-LABEL: @unsigned_int_to_uint32
|
|
uint32_t unsigned_int_to_uint32(unsigned int src) {
|
|
return src;
|
|
}
|
|
|
|
// CHECK-LABEL: @uint32_to_uint32
|
|
uint32_t uint32_to_uint32(uint32_t src) {
|
|
return src;
|
|
}
|
|
|
|
// "Transparent" Enum.
|
|
// ========================================================================== //
|
|
|
|
enum a { b = ~2147483647 };
|
|
enum a c();
|
|
void d(int);
|
|
void e();
|
|
void e() {
|
|
enum a f = c();
|
|
d(f);
|
|
}
|