| // RUN: %clang_cc1 -fsanitize=implicit-unsigned-integer-truncation,implicit-signed-integer-truncation,implicit-integer-sign-change -fsanitize-recover=implicit-unsigned-integer-truncation,implicit-signed-integer-truncation,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 |
| |
| // Test plan: |
| // * Two types - int and char |
| // * Two signs - signed and unsigned |
| // * Square that - we have input and output types. |
| // Thus, there are total of (2*2)^2 == 16 tests. |
| // These are all the possible variations/combinations of casts. |
| // However, not all of them should result in the check. |
| // So here, we *only* check which should and which should not result in checks. |
| |
| // CHECK-DAG: @[[LINE_500_UNSIGNED_TRUNCATION:.*]] = {{.*}}, i32 500, i32 10 }, {{.*}}, {{.*}}, i8 1 } |
| // CHECK-DAG: @[[LINE_900_SIGN_CHANGE:.*]] = {{.*}}, i32 900, i32 10 }, {{.*}}, {{.*}}, i8 3 } |
| // CHECK-DAG: @[[LINE_1000_SIGN_CHANGE:.*]] = {{.*}}, i32 1000, i32 10 }, {{.*}}, {{.*}}, i8 3 } |
| // CHECK-DAG: @[[LINE_1100_SIGNED_TRUNCATION:.*]] = {{.*}}, i32 1100, i32 10 }, {{.*}}, {{.*}}, i8 2 } |
| // CHECK-DAG: @[[LINE_1200_SIGN_CHANGE:.*]] = {{.*}}, i32 1200, i32 10 }, {{.*}}, {{.*}}, i8 3 } |
| // CHECK-DAG: @[[LINE_1300_SIGN_CHANGE:.*]] = {{.*}}, i32 1300, i32 10 }, {{.*}}, {{.*}}, i8 3 } |
| // CHECK-DAG: @[[LINE_1400_SIGN_CHANGE:.*]] = {{.*}}, i32 1400, i32 10 }, {{.*}}, {{.*}}, i8 3 } |
| // CHECK-DAG: @[[LINE_1500_SIGNED_TRUNCATION_OR_SIGN_CHANGE:.*]] = {{.*}}, i32 1500, i32 10 }, {{.*}}, {{.*}}, i8 4 } |
| // CHECK-DAG: @[[LINE_1600_SIGNED_TRUNCATION:.*]] = {{.*}}, i32 1600, i32 10 }, {{.*}}, {{.*}}, i8 2 } |
| |
| // CHECK-LABEL: @convert_unsigned_int_to_unsigned_int |
| unsigned int convert_unsigned_int_to_unsigned_int(unsigned int x) { |
| #line 100 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_unsigned_char_to_unsigned_char |
| unsigned char convert_unsigned_char_to_unsigned_char(unsigned char x) { |
| #line 200 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_signed_int_to_signed_int |
| signed int convert_signed_int_to_signed_int(signed int x) { |
| #line 300 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_signed_char_to_signed_char |
| signed char convert_signed_char_to_signed_char(signed char x) { |
| #line 400 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_unsigned_int_to_unsigned_char |
| unsigned char convert_unsigned_int_to_unsigned_char(unsigned int x) { |
| // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_500_UNSIGNED_TRUNCATION]] to i8*) |
| #line 500 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_unsigned_char_to_unsigned_int |
| unsigned int convert_unsigned_char_to_unsigned_int(unsigned char x) { |
| #line 600 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_unsigned_char_to_signed_int |
| signed int convert_unsigned_char_to_signed_int(unsigned char x) { |
| #line 700 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_signed_char_to_signed_int |
| signed int convert_signed_char_to_signed_int(signed char x) { |
| #line 800 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_unsigned_int_to_signed_int |
| signed int convert_unsigned_int_to_signed_int(unsigned int x) { |
| // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_900_SIGN_CHANGE]] to i8*) |
| #line 900 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_signed_int_to_unsigned_int |
| unsigned int convert_signed_int_to_unsigned_int(signed int x) { |
| // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1000_SIGN_CHANGE]] to i8*) |
| #line 1000 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_signed_int_to_unsigned_char |
| unsigned char convert_signed_int_to_unsigned_char(signed int x) { |
| // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1100_SIGNED_TRUNCATION]] to i8*) |
| #line 1100 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_signed_char_to_unsigned_char |
| unsigned char convert_signed_char_to_unsigned_char(signed char x) { |
| // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1200_SIGN_CHANGE]] to i8*) |
| #line 1200 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_unsigned_char_to_signed_char |
| signed char convert_unsigned_char_to_signed_char(unsigned char x) { |
| // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1300_SIGN_CHANGE]] to i8*) |
| #line 1300 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_signed_char_to_unsigned_int |
| unsigned int convert_signed_char_to_unsigned_int(signed char x) { |
| // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1400_SIGN_CHANGE]] to i8*) |
| #line 1400 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_unsigned_int_to_signed_char |
| signed char convert_unsigned_int_to_signed_char(unsigned int x) { |
| // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1500_SIGNED_TRUNCATION_OR_SIGN_CHANGE]] to i8*) |
| #line 1500 |
| return x; |
| } |
| |
| // CHECK-LABEL: @convert_signed_int_to_signed_char |
| signed char convert_signed_int_to_signed_char(signed int x) { |
| // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1600_SIGNED_TRUNCATION]] to i8*) |
| #line 1600 |
| return x; |
| } |