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llvm / compiler-rt / 337963066ac61242a234ba0a231656531c1edfed / . / test / ubsan / TestCases / ImplicitConversion / integer-sign-change.c
blob: 5313ad2bbb4ef08c585ad949aa43e4b921eee8e0 [file] [log] [blame]
// RUN: %clang -x c -fsanitize=implicit-integer-sign-change %s -DV0 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V0
// RUN: %clang -x c -fsanitize=implicit-integer-sign-change %s -DV1 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V1
// RUN: %clang -x c -fsanitize=implicit-integer-sign-change %s -DV2 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V2
// RUN: %clang -x c -fsanitize=implicit-integer-sign-change %s -DV3 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V3
// RUN: %clang -x c -fsanitize=implicit-integer-sign-change %s -DV4 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V4
// RUN: %clang -x c -fsanitize=implicit-integer-sign-change %s -DV5 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V5
// RUN: %clang -x c -fsanitize=implicit-integer-sign-change %s -DV6 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V6
// RUN: %clang -x c++ -fsanitize=implicit-integer-sign-change %s -DV0 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V0
// RUN: %clang -x c++ -fsanitize=implicit-integer-sign-change %s -DV1 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V1
// RUN: %clang -x c++ -fsanitize=implicit-integer-sign-change %s -DV2 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V2
// RUN: %clang -x c++ -fsanitize=implicit-integer-sign-change %s -DV3 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V3
// RUN: %clang -x c++ -fsanitize=implicit-integer-sign-change %s -DV4 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V4
// RUN: %clang -x c++ -fsanitize=implicit-integer-sign-change %s -DV5 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V5
// RUN: %clang -x c++ -fsanitize=implicit-integer-sign-change %s -DV6 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V6
#include <stdint.h>
// 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.
//============================================================================//
// Half of the cases do not need the check. //
//============================================================================//
uint32_t negative0_convert_unsigned_int_to_unsigned_int(uint32_t x) {
return x;
}
uint8_t negative1_convert_unsigned_char_to_unsigned_char(uint8_t x) {
return x;
}
int32_t negative2_convert_signed_int_to_signed_int(int32_t x) {
return x;
}
int8_t negative3_convert_signed_char_to_signed_char(int8_t x) {
return x;
}
uint8_t negative4_convert_unsigned_int_to_unsigned_char(uint32_t x) {
return x;
}
uint32_t negative5_convert_unsigned_char_to_unsigned_int(uint8_t x) {
return x;
}
int32_t negative6_convert_unsigned_char_to_signed_int(uint8_t x) {
return x;
}
int32_t negative7_convert_signed_char_to_signed_int(int8_t x) {
return x;
}
void test_negatives() {
// No bits set.
negative0_convert_unsigned_int_to_unsigned_int(0);
negative1_convert_unsigned_char_to_unsigned_char(0);
negative2_convert_signed_int_to_signed_int(0);
negative3_convert_signed_char_to_signed_char(0);
negative4_convert_unsigned_int_to_unsigned_char(0);
negative5_convert_unsigned_char_to_unsigned_int(0);
negative6_convert_unsigned_char_to_signed_int(0);
negative7_convert_signed_char_to_signed_int(0);
// One lowest bit set.
negative0_convert_unsigned_int_to_unsigned_int(1);
negative1_convert_unsigned_char_to_unsigned_char(1);
negative2_convert_signed_int_to_signed_int(1);
negative3_convert_signed_char_to_signed_char(1);
negative4_convert_unsigned_int_to_unsigned_char(1);
negative5_convert_unsigned_char_to_unsigned_int(1);
negative6_convert_unsigned_char_to_signed_int(1);
negative7_convert_signed_char_to_signed_int(1);
// All source bits set.
negative0_convert_unsigned_int_to_unsigned_int((uint32_t)UINT32_MAX);
negative1_convert_unsigned_char_to_unsigned_char((uint8_t)UINT8_MAX);
negative2_convert_signed_int_to_signed_int((int32_t)INT32_MAX);
negative3_convert_signed_char_to_signed_char((int8_t)INT8_MAX);
negative4_convert_unsigned_int_to_unsigned_char((uint32_t)UINT32_MAX);
negative5_convert_unsigned_char_to_unsigned_int((uint8_t)UINT8_MAX);
negative6_convert_unsigned_char_to_signed_int((uint8_t)UINT8_MAX);
negative7_convert_signed_char_to_signed_int((int8_t)INT8_MAX);
// Source 'sign' bit set.
negative0_convert_unsigned_int_to_unsigned_int((uint32_t)INT32_MIN);
negative1_convert_unsigned_char_to_unsigned_char((uint8_t)INT8_MIN);
negative2_convert_signed_int_to_signed_int((int32_t)INT32_MIN);
negative3_convert_signed_char_to_signed_char((int8_t)INT8_MIN);
negative4_convert_unsigned_int_to_unsigned_char((uint32_t)INT32_MIN);
negative5_convert_unsigned_char_to_unsigned_int((uint8_t)INT8_MIN);
negative6_convert_unsigned_char_to_signed_int((uint8_t)INT8_MIN);
negative7_convert_signed_char_to_signed_int((int8_t)INT8_MIN);
}
//============================================================================//
// The remaining 8 cases *do* need the check. //
//============================================================================//
int32_t positive0_convert_unsigned_int_to_signed_int(uint32_t x) {
#line 100
return x;
}
uint32_t positive1_convert_signed_int_to_unsigned_int(int32_t x) {
#line 200
return x;
}
uint8_t positive2_convert_signed_int_to_unsigned_char(int32_t x) {
#line 300
return x;
}
uint8_t positive3_convert_signed_char_to_unsigned_char(int8_t x) {
#line 400
return x;
}
int8_t positive4_convert_unsigned_char_to_signed_char(uint8_t x) {
#line 500
return x;
}
uint32_t positive5_convert_signed_char_to_unsigned_int(int8_t x) {
#line 600
return x;
}
int8_t positive6_convert_unsigned_int_to_signed_char(uint32_t x) {
#line 700
return x;
}
int8_t positive7_convert_signed_int_to_signed_char(int32_t x) {
#line 800
return x;
}
#line 1120 // !!!
void test_positives() {
// No bits set.
positive0_convert_unsigned_int_to_signed_int(0);
positive1_convert_signed_int_to_unsigned_int(0);
positive2_convert_signed_int_to_unsigned_char(0);
positive3_convert_signed_char_to_unsigned_char(0);
positive4_convert_unsigned_char_to_signed_char(0);
positive5_convert_signed_char_to_unsigned_int(0);
positive6_convert_unsigned_int_to_signed_char(0);
positive7_convert_signed_int_to_signed_char(0);
// One lowest bit set.
positive0_convert_unsigned_int_to_signed_int(1);
positive1_convert_signed_int_to_unsigned_int(1);
positive2_convert_signed_int_to_unsigned_char(1);
positive3_convert_signed_char_to_unsigned_char(1);
positive4_convert_unsigned_char_to_signed_char(1);
positive5_convert_signed_char_to_unsigned_int(1);
positive6_convert_unsigned_int_to_signed_char(1);
positive7_convert_signed_int_to_signed_char(1);
#if defined(V0)
// All source bits set.
positive0_convert_unsigned_int_to_signed_int((uint32_t)UINT32_MAX);
// CHECK-V0: {{.*}}integer-sign-change.c:100:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 4294967295 (32-bit, unsigned) to type '{{.*}}' (aka 'int') changed the value to -1 (32-bit, signed)
positive1_convert_signed_int_to_unsigned_int((int32_t)UINT32_MAX);
// CHECK-V0: {{.*}}integer-sign-change.c:200:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value -1 (32-bit, signed) to type '{{.*}}' (aka 'unsigned int') changed the value to 4294967295 (32-bit, unsigned)
positive2_convert_signed_int_to_unsigned_char((int32_t)UINT32_MAX);
// CHECK-V0: {{.*}}integer-sign-change.c:300:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value -1 (32-bit, signed) to type '{{.*}}' (aka 'unsigned char') changed the value to 255 (8-bit, unsigned)
positive3_convert_signed_char_to_unsigned_char((int8_t)UINT8_MAX);
// CHECK-V0: {{.*}}integer-sign-change.c:400:10: runtime error: implicit conversion from type '{{.*}}' (aka '{{(signed )?}}char') of value -1 (8-bit, signed) to type '{{.*}}' (aka 'unsigned char') changed the value to 255 (8-bit, unsigned)
positive4_convert_unsigned_char_to_signed_char((uint8_t)UINT8_MAX);
// CHECK-V0: {{.*}}integer-sign-change.c:500:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned char') of value 255 (8-bit, unsigned) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to -1 (8-bit, signed)
positive5_convert_signed_char_to_unsigned_int((int8_t)UINT8_MAX);
// CHECK-V0: {{.*}}integer-sign-change.c:600:10: runtime error: implicit conversion from type '{{.*}}' (aka '{{(signed )?}}char') of value -1 (8-bit, signed) to type '{{.*}}' (aka 'unsigned int') changed the value to 4294967295 (32-bit, unsigned)
positive6_convert_unsigned_int_to_signed_char((uint32_t)UINT32_MAX);
// CHECK-V0: {{.*}}integer-sign-change.c:700:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 4294967295 (32-bit, unsigned) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to -1 (8-bit, signed)
positive7_convert_signed_int_to_signed_char((int32_t)UINT32_MAX);
#elif defined(V1)
// Source 'Sign' bit set.
positive0_convert_unsigned_int_to_signed_int((uint32_t)INT32_MIN);
// CHECK-V1: {{.*}}integer-sign-change.c:100:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 2147483648 (32-bit, unsigned) to type '{{.*}}' (aka 'int') changed the value to -2147483648 (32-bit, signed)
positive1_convert_signed_int_to_unsigned_int((int32_t)INT32_MIN);
// CHECK-V1: {{.*}}integer-sign-change.c:200:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value -2147483648 (32-bit, signed) to type '{{.*}}' (aka 'unsigned int') changed the value to 2147483648 (32-bit, unsigned)
positive2_convert_signed_int_to_unsigned_char((int32_t)INT32_MIN);
// CHECK-V1: {{.*}}integer-sign-change.c:300:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value -2147483648 (32-bit, signed) to type '{{.*}}' (aka 'unsigned char') changed the value to 0 (8-bit, unsigned)
positive3_convert_signed_char_to_unsigned_char((int8_t)INT8_MIN);
// CHECK-V1: {{.*}}integer-sign-change.c:400:10: runtime error: implicit conversion from type '{{.*}}' (aka '{{(signed )?}}char') of value -128 (8-bit, signed) to type '{{.*}}' (aka 'unsigned char') changed the value to 128 (8-bit, unsigned)
positive4_convert_unsigned_char_to_signed_char((uint8_t)INT8_MIN);
// CHECK-V1: {{.*}}integer-sign-change.c:500:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned char') of value 128 (8-bit, unsigned) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to -128 (8-bit, signed)
positive5_convert_signed_char_to_unsigned_int((int8_t)INT8_MIN);
// CHECK-V1: {{.*}}integer-sign-change.c:600:10: runtime error: implicit conversion from type '{{.*}}' (aka '{{(signed )?}}char') of value -128 (8-bit, signed) to type '{{.*}}' (aka 'unsigned int') changed the value to 4294967168 (32-bit, unsigned)
positive6_convert_unsigned_int_to_signed_char((uint32_t)INT32_MIN);
positive7_convert_signed_int_to_signed_char((int32_t)INT32_MIN);
// CHECK-V1: {{.*}}integer-sign-change.c:800:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value -2147483648 (32-bit, signed) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to 0 (8-bit, signed)
#elif defined(V2)
// All bits except the source 'Sign' bit are set.
positive0_convert_unsigned_int_to_signed_int((uint32_t)INT32_MAX);
positive1_convert_signed_int_to_unsigned_int((int32_t)INT32_MAX);
positive2_convert_signed_int_to_unsigned_char((int32_t)INT32_MAX);
positive3_convert_signed_char_to_unsigned_char((int8_t)INT8_MAX);
positive4_convert_unsigned_char_to_signed_char((uint8_t)INT8_MAX);
positive5_convert_signed_char_to_unsigned_int((int8_t)INT8_MAX);
positive6_convert_unsigned_int_to_signed_char((uint32_t)INT32_MAX);
// CHECK-V2: {{.*}}integer-sign-change.c:700:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 2147483647 (32-bit, unsigned) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to -1 (8-bit, signed)
positive7_convert_signed_int_to_signed_char((int32_t)INT32_MAX);
// CHECK-V2: {{.*}}integer-sign-change.c:800:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value 2147483647 (32-bit, signed) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to -1 (8-bit, signed)
#elif defined(V3)
// All destination bits set.
positive0_convert_unsigned_int_to_signed_int((uint32_t)UINT32_MAX);
// CHECK-V3: {{.*}}integer-sign-change.c:100:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 4294967295 (32-bit, unsigned) to type '{{.*}}' (aka 'int') changed the value to -1 (32-bit, signed)
positive1_convert_signed_int_to_unsigned_int((int32_t)UINT32_MAX);
// CHECK-V3: {{.*}}integer-sign-change.c:200:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value -1 (32-bit, signed) to type '{{.*}}' (aka 'unsigned int') changed the value to 4294967295 (32-bit, unsigned)
positive2_convert_signed_int_to_unsigned_char((int32_t)UINT8_MAX);
positive3_convert_signed_char_to_unsigned_char((int8_t)UINT8_MAX);
// CHECK-V3: {{.*}}integer-sign-change.c:400:10: runtime error: implicit conversion from type '{{.*}}' (aka '{{(signed )?}}char') of value -1 (8-bit, signed) to type '{{.*}}' (aka 'unsigned char') changed the value to 255 (8-bit, unsigned)
positive4_convert_unsigned_char_to_signed_char((uint8_t)UINT8_MAX);
// CHECK-V3: {{.*}}integer-sign-change.c:500:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned char') of value 255 (8-bit, unsigned) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to -1 (8-bit, signed)
positive5_convert_signed_char_to_unsigned_int((int8_t)UINT32_MAX);
// CHECK-V3: {{.*}}integer-sign-change.c:600:10: runtime error: implicit conversion from type '{{.*}}' (aka '{{(signed )?}}char') of value -1 (8-bit, signed) to type '{{.*}}' (aka 'unsigned int') changed the value to 4294967295 (32-bit, unsigned)
positive6_convert_unsigned_int_to_signed_char((uint32_t)UINT8_MAX);
// CHECK-V3: {{.*}}integer-sign-change.c:700:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 255 (32-bit, unsigned) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to -1 (8-bit, signed)
positive7_convert_signed_int_to_signed_char((int32_t)UINT8_MAX);
// CHECK-V3: {{.*}}integer-sign-change.c:800:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value 255 (32-bit, signed) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to -1 (8-bit, signed)
#elif defined(V4)
// Destination 'sign' bit set.
positive0_convert_unsigned_int_to_signed_int((uint32_t)INT32_MIN);
// CHECK-V4: {{.*}}integer-sign-change.c:100:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 2147483648 (32-bit, unsigned) to type '{{.*}}' (aka 'int') changed the value to -2147483648 (32-bit, signed)
positive1_convert_signed_int_to_unsigned_int((int32_t)INT32_MIN);
// CHECK-V4: {{.*}}integer-sign-change.c:200:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value -2147483648 (32-bit, signed) to type '{{.*}}' (aka 'unsigned int') changed the value to 2147483648 (32-bit, unsigned)
positive2_convert_signed_int_to_unsigned_char((int32_t)INT8_MIN);
// CHECK-V4: {{.*}}integer-sign-change.c:300:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value -128 (32-bit, signed) to type '{{.*}}' (aka 'unsigned char') changed the value to 128 (8-bit, unsigned)
positive3_convert_signed_char_to_unsigned_char((int8_t)INT8_MIN);
// CHECK-V4: {{.*}}integer-sign-change.c:400:10: runtime error: implicit conversion from type '{{.*}}' (aka '{{(signed )?}}char') of value -128 (8-bit, signed) to type '{{.*}}' (aka 'unsigned char') changed the value to 128 (8-bit, unsigned)
positive4_convert_unsigned_char_to_signed_char((uint8_t)INT8_MIN);
// CHECK-V4: {{.*}}integer-sign-change.c:500:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned char') of value 128 (8-bit, unsigned) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to -128 (8-bit, signed)
positive5_convert_signed_char_to_unsigned_int((int8_t)INT32_MIN);
positive6_convert_unsigned_int_to_signed_char((uint32_t)INT8_MIN);
// CHECK-V4: {{.*}}integer-sign-change.c:700:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 4294967168 (32-bit, unsigned) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to -128 (8-bit, signed)
positive7_convert_signed_int_to_signed_char((int32_t)INT8_MIN);
#elif defined(V5)
// All bits except the destination 'sign' bit are set.
positive0_convert_unsigned_int_to_signed_int((uint32_t)INT32_MIN);
// CHECK-V5: {{.*}}integer-sign-change.c:100:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 2147483648 (32-bit, unsigned) to type '{{.*}}' (aka 'int') changed the value to -2147483648 (32-bit, signed)
positive1_convert_signed_int_to_unsigned_int((int32_t)INT32_MIN);
// CHECK-V5: {{.*}}integer-sign-change.c:200:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value -2147483648 (32-bit, signed) to type '{{.*}}' (aka 'unsigned int') changed the value to 2147483648 (32-bit, unsigned)
positive2_convert_signed_int_to_unsigned_char((int32_t)(~((uint32_t)(uint8_t)INT8_MIN)));
// CHECK-V5: {{.*}}integer-sign-change.c:300:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value -129 (32-bit, signed) to type '{{.*}}' (aka 'unsigned char') changed the value to 127 (8-bit, unsigned)
positive3_convert_signed_char_to_unsigned_char((int8_t)(INT8_MIN));
// CHECK-V5: {{.*}}integer-sign-change.c:400:10: runtime error: implicit conversion from type '{{.*}}' (aka '{{(signed )?}}char') of value -128 (8-bit, signed) to type '{{.*}}' (aka 'unsigned char') changed the value to 128 (8-bit, unsigned)
positive4_convert_unsigned_char_to_signed_char((uint8_t)(INT8_MIN));
// CHECK-V5: {{.*}}integer-sign-change.c:500:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned char') of value 128 (8-bit, unsigned) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to -128 (8-bit, signed)
positive5_convert_signed_char_to_unsigned_int((int8_t)(INT32_MIN));
positive6_convert_unsigned_int_to_signed_char(~((uint32_t)(uint8_t)INT8_MIN));
positive7_convert_signed_int_to_signed_char((int32_t)(~((uint32_t)((uint8_t)INT8_MIN))));
// CHECK-V5: {{.*}}integer-sign-change.c:800:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value -129 (32-bit, signed) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to 127 (8-bit, signed)
#elif defined(V6)
// Only the source and destination sign bits are set.
positive0_convert_unsigned_int_to_signed_int((uint32_t)INT32_MIN);
// CHECK-V6: {{.*}}integer-sign-change.c:100:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 2147483648 (32-bit, unsigned) to type '{{.*}}' (aka 'int') changed the value to -2147483648 (32-bit, signed)
positive1_convert_signed_int_to_unsigned_int((int32_t)INT32_MIN);
// CHECK-V6: {{.*}}integer-sign-change.c:200:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value -2147483648 (32-bit, signed) to type '{{.*}}' (aka 'unsigned int') changed the value to 2147483648 (32-bit, unsigned)
positive2_convert_signed_int_to_unsigned_char((int32_t)((uint32_t)INT32_MIN | (uint32_t)((uint8_t)INT8_MIN)));
// CHECK-V6: {{.*}}integer-sign-change.c:300:10: runtime error: implicit conversion from type '{{.*}}' (aka 'int') of value -2147483520 (32-bit, signed) to type '{{.*}}' (aka 'unsigned char') changed the value to 128 (8-bit, unsigned)
positive3_convert_signed_char_to_unsigned_char((int8_t)INT8_MIN);
// CHECK-V6: {{.*}}integer-sign-change.c:400:10: runtime error: implicit conversion from type '{{.*}}' (aka '{{(signed )?}}char') of value -128 (8-bit, signed) to type '{{.*}}' (aka 'unsigned char') changed the value to 128 (8-bit, unsigned)
positive4_convert_unsigned_char_to_signed_char((uint8_t)INT8_MIN);
// CHECK-V6: {{.*}}integer-sign-change.c:500:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned char') of value 128 (8-bit, unsigned) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to -128 (8-bit, signed)
positive5_convert_signed_char_to_unsigned_int((int8_t)INT8_MIN);
// CHECK-V6: {{.*}}integer-sign-change.c:600:10: runtime error: implicit conversion from type '{{.*}}' (aka '{{(signed )?}}char') of value -128 (8-bit, signed) to type '{{.*}}' (aka 'unsigned int') changed the value to 4294967168 (32-bit, unsigned)
positive6_convert_unsigned_int_to_signed_char((uint32_t)((uint32_t)INT32_MIN | (uint32_t)((uint8_t)INT8_MIN)));
// CHECK-V6: {{.*}}integer-sign-change.c:700:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 2147483776 (32-bit, unsigned) to type '{{.*}}' (aka '{{(signed )?}}char') changed the value to -128 (8-bit, signed)
positive7_convert_signed_int_to_signed_char((int32_t)((uint32_t)INT32_MIN | (uint32_t)((uint8_t)INT8_MIN)));
#else
#error Some V* needs to be defined!
#endif
}
// CHECK-NOT: implicit conversion
int main() {
test_negatives();
test_positives();
return 0;
}