// RUN: %clang_cc1 -fsanitize=implicit-unsigned-integer-truncation -fsanitize-recover=implicit-unsigned-integer-truncation -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-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) { #line 900 return x; } // CHECK-LABEL: @convert_signed_int_to_unsigned_int unsigned int convert_signed_int_to_unsigned_int(signed int x) { #line 1000 return x; } // CHECK-LABEL: @convert_signed_int_to_unsigned_char unsigned char convert_signed_int_to_unsigned_char(signed int x) { #line 1100 return x; } // CHECK-LABEL: @convert_signed_char_to_unsigned_char unsigned char convert_signed_char_to_unsigned_char(signed char x) { #line 1200 return x; } // CHECK-LABEL: @convert_unsigned_char_to_signed_char signed char convert_unsigned_char_to_signed_char(unsigned char x) { #line 1300 return x; } // CHECK-LABEL: @convert_signed_char_to_unsigned_int unsigned int convert_signed_char_to_unsigned_int(signed char x) { #line 1400 return x; } // CHECK-LABEL: @convert_unsigned_int_to_signed_char signed char convert_unsigned_int_to_signed_char(unsigned int x) { #line 1500 return x; } // CHECK-LABEL: @convert_signed_int_to_signed_char signed char convert_signed_int_to_signed_char(signed int x) { #line 1600 return x; }