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312 lines
16 KiB
312 lines
16 KiB
// RUN: %clang -x c -fsanitize=implicit-unsigned-integer-truncation %s -DV0 -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-V0,CHECK
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// RUN: %clang -x c -fsanitize=implicit-unsigned-integer-truncation %s -DV1 -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-V1,CHECK
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// RUN: %clang -x c -fsanitize=implicit-unsigned-integer-truncation %s -DV2 -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-V2,CHECK
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// RUN: %clang -x c -fsanitize=implicit-unsigned-integer-truncation %s -DV3 -o %t && %run %t 2>&1 | FileCheck %s
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// RUN: %clang -x c -fsanitize=implicit-unsigned-integer-truncation %s -DV4 -o %t && %run %t 2>&1 | FileCheck %s
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// RUN: %clang -x c -fsanitize=implicit-unsigned-integer-truncation %s -DV5 -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-V5,CHECK
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// RUN: %clang -x c -fsanitize=implicit-unsigned-integer-truncation %s -DV6 -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-V6,CHECK
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// RUN: %clang -x c -fsanitize=implicit-unsigned-integer-truncation %s -DV7 -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-V7,CHECK
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// RUN: %clang -x c++ -fsanitize=implicit-unsigned-integer-truncation %s -DV0 -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-V0,CHECK
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// RUN: %clang -x c++ -fsanitize=implicit-unsigned-integer-truncation %s -DV1 -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-V1,CHECK
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// RUN: %clang -x c++ -fsanitize=implicit-unsigned-integer-truncation %s -DV2 -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-V2,CHECK
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// RUN: %clang -x c++ -fsanitize=implicit-unsigned-integer-truncation %s -DV3 -o %t && %run %t 2>&1 | FileCheck %s
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// RUN: %clang -x c++ -fsanitize=implicit-unsigned-integer-truncation %s -DV4 -o %t && %run %t 2>&1 | FileCheck %s
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// RUN: %clang -x c++ -fsanitize=implicit-unsigned-integer-truncation %s -DV5 -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-V5,CHECK
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// RUN: %clang -x c++ -fsanitize=implicit-unsigned-integer-truncation %s -DV6 -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-V6,CHECK
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// RUN: %clang -x c++ -fsanitize=implicit-unsigned-integer-truncation %s -DV7 -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-V7,CHECK
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#include <stdint.h>
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#include <stdio.h>
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// Test plan:
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// * Two types - int and char
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// * Two signs - signed and unsigned
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// * Square that - we have input and output types.
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// Thus, there are total of (2*2)^2 == 16 tests.
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// These are all the possible variations/combinations of casts.
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// However, not all of them should result in the check.
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// So here, we *only* check which should and which should not result in checks.
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uint32_t convert_unsigned_int_to_unsigned_int(uint32_t x) {
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#line 100
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return x;
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}
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uint8_t convert_unsigned_char_to_unsigned_char(uint8_t x) {
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#line 200
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return x;
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}
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int32_t convert_signed_int_to_signed_int(int32_t x) {
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#line 300
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return x;
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}
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int8_t convert_signed_char_to_signed_char(int8_t x) {
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#line 400
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return x;
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}
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uint8_t convert_unsigned_int_to_unsigned_char(uint32_t x) {
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#line 500
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return x;
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}
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uint32_t convert_unsigned_char_to_unsigned_int(uint8_t x) {
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#line 600
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return x;
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}
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int32_t convert_unsigned_char_to_signed_int(uint8_t x) {
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#line 700
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return x;
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}
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int32_t convert_signed_char_to_signed_int(int8_t x) {
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#line 800
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return x;
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}
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int32_t convert_unsigned_int_to_signed_int(uint32_t x) {
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#line 900
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return x;
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}
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uint32_t convert_signed_int_to_unsigned_int(int32_t x) {
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#line 1000
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return x;
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}
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uint8_t convert_signed_int_to_unsigned_char(int32_t x) {
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#line 1100
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return x;
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}
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uint8_t convert_signed_char_to_unsigned_char(int8_t x) {
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#line 1200
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return x;
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}
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int8_t convert_unsigned_char_to_signed_char(uint8_t x) {
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#line 1300
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return x;
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}
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uint32_t convert_signed_char_to_unsigned_int(int8_t x) {
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#line 1400
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return x;
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}
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int8_t convert_unsigned_int_to_signed_char(uint32_t x) {
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#line 1500
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return x;
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}
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int8_t convert_signed_int_to_signed_char(int32_t x) {
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#line 1600
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return x;
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}
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#line 1111 // !!!
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int main() {
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fprintf(stderr, "TEST\n");
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// CHECK-NOT: runtime error
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// CHECK-LABEL: TEST
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// No bits set.
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convert_unsigned_int_to_unsigned_int(0);
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convert_unsigned_char_to_unsigned_char(0);
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convert_signed_int_to_signed_int(0);
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convert_signed_char_to_signed_char(0);
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convert_unsigned_int_to_unsigned_char(0);
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convert_unsigned_char_to_unsigned_int(0);
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convert_unsigned_char_to_signed_int(0);
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convert_signed_char_to_signed_int(0);
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convert_unsigned_int_to_signed_int(0);
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convert_signed_int_to_unsigned_int(0);
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convert_signed_int_to_unsigned_char(0);
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convert_signed_char_to_unsigned_char(0);
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convert_unsigned_char_to_signed_char(0);
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convert_signed_char_to_unsigned_int(0);
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convert_unsigned_int_to_signed_char(0);
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convert_signed_int_to_signed_char(0);
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// One lowest bit set.
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convert_unsigned_int_to_unsigned_int(1);
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convert_unsigned_char_to_unsigned_char(1);
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convert_signed_int_to_signed_int(1);
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convert_signed_char_to_signed_char(1);
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convert_unsigned_int_to_unsigned_char(1);
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convert_unsigned_char_to_unsigned_int(1);
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convert_unsigned_char_to_signed_int(1);
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convert_signed_char_to_signed_int(1);
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convert_unsigned_int_to_signed_int(1);
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convert_signed_int_to_unsigned_int(1);
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convert_signed_int_to_unsigned_char(1);
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convert_signed_char_to_unsigned_char(1);
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convert_unsigned_char_to_signed_char(1);
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convert_signed_char_to_unsigned_int(1);
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convert_unsigned_int_to_signed_char(1);
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convert_signed_int_to_signed_char(1);
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#if defined(V0)
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// All source bits set.
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convert_unsigned_int_to_unsigned_int((uint32_t)UINT32_MAX);
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convert_unsigned_char_to_unsigned_char((uint8_t)UINT8_MAX);
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convert_signed_int_to_signed_int((int32_t)(uint32_t)UINT32_MAX);
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convert_signed_char_to_signed_char((int8_t)UINT8_MAX);
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convert_unsigned_int_to_unsigned_char((uint32_t)UINT32_MAX);
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// CHECK-V0: {{.*}}unsigned-integer-truncation.c:500:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 4294967295 (32-bit, unsigned) to type '{{.*}}' (aka 'unsigned char') changed the value to 255 (8-bit, unsigned
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convert_unsigned_char_to_unsigned_int((uint8_t)UINT8_MAX);
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convert_unsigned_char_to_signed_int((uint8_t)UINT8_MAX);
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convert_signed_char_to_signed_int((int8_t)UINT8_MAX);
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convert_unsigned_int_to_signed_int((uint32_t)UINT32_MAX);
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convert_signed_int_to_unsigned_int((int32_t)(uint32_t)UINT32_MAX);
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convert_signed_int_to_unsigned_char((int32_t)(uint32_t)UINT32_MAX);
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convert_signed_char_to_unsigned_char((int8_t)UINT8_MAX);
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convert_unsigned_char_to_signed_char((uint8_t)UINT8_MAX);
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convert_signed_char_to_unsigned_int((int8_t)UINT8_MAX);
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convert_unsigned_int_to_signed_char((uint32_t)UINT32_MAX);
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convert_signed_int_to_signed_char((int32_t)(uint32_t)UINT32_MAX);
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#elif defined(V1)
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// Source 'Sign' bit set.
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convert_unsigned_int_to_unsigned_int((uint32_t)INT32_MIN);
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convert_unsigned_char_to_unsigned_char((uint8_t)INT8_MIN);
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convert_signed_int_to_signed_int((int32_t)(uint32_t)INT32_MIN);
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convert_signed_char_to_signed_char((int8_t)INT8_MIN);
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convert_unsigned_int_to_unsigned_char((uint32_t)INT32_MIN);
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// CHECK-V1: {{.*}}unsigned-integer-truncation.c:500:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 2147483648 (32-bit, unsigned) to type '{{.*}}' (aka 'unsigned char') changed the value to 0 (8-bit, unsigned)
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convert_unsigned_char_to_unsigned_int((uint8_t)INT8_MIN);
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convert_unsigned_char_to_signed_int((uint8_t)INT8_MIN);
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convert_signed_char_to_signed_int((int8_t)INT8_MIN);
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convert_unsigned_int_to_signed_int((uint32_t)INT32_MIN);
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convert_signed_int_to_unsigned_int((int32_t)(uint32_t)INT32_MIN);
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convert_signed_int_to_unsigned_char((int32_t)(uint32_t)INT32_MIN);
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convert_signed_char_to_unsigned_char((int8_t)INT8_MIN);
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convert_unsigned_char_to_signed_char((uint8_t)INT8_MIN);
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convert_signed_char_to_unsigned_int((int8_t)INT8_MIN);
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convert_unsigned_int_to_signed_char((uint32_t)INT32_MIN);
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convert_signed_int_to_signed_char((int32_t)(uint32_t)INT32_MIN);
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#elif defined(V2)
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// All bits except the source 'Sign' bit are set.
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convert_unsigned_int_to_unsigned_int((uint32_t)INT32_MAX);
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convert_unsigned_char_to_unsigned_char((uint8_t)INT8_MAX);
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convert_signed_int_to_signed_int((int32_t)(uint32_t)INT32_MAX);
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convert_signed_char_to_signed_char((int8_t)INT8_MAX);
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convert_unsigned_int_to_unsigned_char((uint32_t)INT32_MAX);
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// CHECK-V2: {{.*}}unsigned-integer-truncation.c:500:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 2147483647 (32-bit, unsigned) to type '{{.*}}' (aka 'unsigned char') changed the value to 255 (8-bit, unsigned)
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convert_unsigned_char_to_unsigned_int((uint8_t)INT8_MAX);
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convert_unsigned_char_to_signed_int((uint8_t)INT8_MAX);
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convert_signed_char_to_signed_int((int8_t)INT8_MAX);
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convert_unsigned_int_to_signed_int((uint32_t)INT32_MAX);
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convert_signed_int_to_unsigned_int((int32_t)(uint32_t)INT32_MAX);
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convert_signed_int_to_unsigned_char((int32_t)(uint32_t)INT32_MAX);
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convert_signed_char_to_unsigned_char((int8_t)INT8_MAX);
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convert_unsigned_char_to_signed_char((uint8_t)INT8_MAX);
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convert_signed_char_to_unsigned_int((int8_t)INT8_MAX);
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convert_unsigned_int_to_signed_char((uint32_t)INT32_MAX);
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convert_signed_int_to_signed_char((int32_t)(uint32_t)INT32_MAX);
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#elif defined(V3)
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// All destination bits set.
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convert_unsigned_int_to_unsigned_int((uint32_t)UINT8_MAX);
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convert_unsigned_char_to_unsigned_char((uint8_t)UINT8_MAX);
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convert_signed_int_to_signed_int((int32_t)(uint32_t)UINT8_MAX);
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convert_signed_char_to_signed_char((int8_t)UINT8_MAX);
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convert_unsigned_int_to_unsigned_char((uint32_t)UINT8_MAX);
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convert_unsigned_char_to_unsigned_int((uint8_t)UINT8_MAX);
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convert_unsigned_char_to_signed_int((uint8_t)UINT8_MAX);
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convert_signed_char_to_signed_int((int8_t)UINT8_MAX);
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convert_unsigned_int_to_signed_int((uint32_t)UINT8_MAX);
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convert_signed_int_to_unsigned_int((int32_t)(uint32_t)UINT8_MAX);
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convert_signed_int_to_unsigned_char((int32_t)(uint32_t)UINT8_MAX);
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convert_signed_char_to_unsigned_char((int8_t)UINT8_MAX);
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convert_unsigned_char_to_signed_char((uint8_t)UINT8_MAX);
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convert_signed_char_to_unsigned_int((int8_t)UINT8_MAX);
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convert_unsigned_int_to_signed_char((uint32_t)UINT8_MAX);
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convert_signed_int_to_signed_char((int32_t)(uint32_t)UINT8_MAX);
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#elif defined(V4)
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// Destination 'sign' bit set.
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convert_unsigned_int_to_unsigned_int((uint32_t)(uint8_t)INT8_MIN);
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convert_unsigned_char_to_unsigned_char((uint8_t)(uint8_t)INT8_MIN);
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convert_signed_int_to_signed_int((int32_t)(uint32_t)(uint8_t)INT8_MIN);
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convert_signed_char_to_signed_char((int8_t)(uint8_t)INT8_MIN);
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convert_unsigned_int_to_unsigned_char((uint32_t)(uint8_t)INT8_MIN);
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convert_unsigned_char_to_unsigned_int((uint8_t)(uint8_t)INT8_MIN);
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convert_unsigned_char_to_signed_int((uint8_t)(uint8_t)INT8_MIN);
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convert_signed_char_to_signed_int((int8_t)(uint8_t)INT8_MIN);
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convert_unsigned_int_to_signed_int((uint32_t)(uint8_t)INT8_MIN);
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convert_signed_int_to_unsigned_int((int32_t)(uint32_t)(uint8_t)INT8_MIN);
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convert_signed_int_to_unsigned_char((int32_t)(uint32_t)(uint8_t)INT8_MIN);
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convert_signed_char_to_unsigned_char((int8_t)(uint8_t)INT8_MIN);
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convert_unsigned_char_to_signed_char((uint8_t)(uint8_t)INT8_MIN);
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convert_signed_char_to_unsigned_int((int8_t)(uint8_t)INT8_MIN);
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convert_unsigned_int_to_signed_char((uint32_t)(uint8_t)INT8_MIN);
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convert_signed_int_to_signed_char((int32_t)(uint32_t)(uint8_t)INT8_MIN);
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#elif defined(V5)
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// All bits except the destination 'sign' bit are set.
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convert_unsigned_int_to_unsigned_int((~((uint32_t)(uint8_t)INT8_MIN)));
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convert_unsigned_char_to_unsigned_char((uint8_t)(uint8_t)INT8_MIN);
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convert_signed_int_to_signed_int((int32_t)(~((uint32_t)(uint8_t)INT8_MIN)));
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convert_signed_char_to_signed_char((int8_t)(uint8_t)INT8_MIN);
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convert_unsigned_int_to_unsigned_char((~((uint32_t)(uint8_t)INT8_MIN)));
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// CHECK-V5: {{.*}}unsigned-integer-truncation.c:500:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 4294967167 (32-bit, unsigned) to type '{{.*}}' (aka 'unsigned char') changed the value to 127 (8-bit, unsigned)
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convert_unsigned_char_to_unsigned_int((uint8_t)(uint8_t)INT8_MIN);
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convert_unsigned_char_to_signed_int((uint8_t)(uint8_t)INT8_MIN);
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convert_signed_char_to_signed_int((int8_t)(uint8_t)INT8_MIN);
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convert_unsigned_int_to_signed_int((~((uint32_t)(uint8_t)INT8_MIN)));
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convert_signed_int_to_unsigned_int((int32_t)(~((uint32_t)(uint8_t)INT8_MIN)));
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convert_signed_int_to_unsigned_char((int32_t)(~((uint32_t)(uint8_t)INT8_MIN)));
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convert_signed_char_to_unsigned_char((int8_t)(uint8_t)INT8_MIN);
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convert_unsigned_char_to_signed_char((uint8_t)(uint8_t)INT8_MIN);
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convert_signed_char_to_unsigned_int((int8_t)(uint8_t)INT8_MIN);
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convert_unsigned_int_to_signed_char((~((uint32_t)(uint8_t)INT8_MIN)));
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convert_signed_int_to_signed_char((int32_t)(~((uint32_t)(uint8_t)INT8_MIN)));
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#elif defined(V6)
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// Only the source and destination sign bits are set.
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convert_unsigned_int_to_unsigned_int((uint32_t)INT32_MIN);
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convert_unsigned_char_to_unsigned_char((uint8_t)INT8_MIN);
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convert_signed_int_to_signed_int((int32_t)INT32_MIN);
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convert_signed_char_to_signed_char((int8_t)INT8_MIN);
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convert_unsigned_int_to_unsigned_char(((uint32_t)INT32_MIN) | ((uint32_t)(uint8_t)INT8_MIN));
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// CHECK-V6: {{.*}}unsigned-integer-truncation.c:500:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 2147483776 (32-bit, unsigned) to type '{{.*}}' (aka 'unsigned char') changed the value to 128 (8-bit, unsigned)
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convert_unsigned_char_to_unsigned_int((uint8_t)INT8_MIN);
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convert_unsigned_char_to_signed_int((uint8_t)INT8_MIN);
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convert_signed_char_to_signed_int((int8_t)INT8_MIN);
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convert_unsigned_int_to_signed_int((uint32_t)INT32_MIN);
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convert_signed_int_to_unsigned_int((uint32_t)INT32_MIN);
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convert_signed_int_to_unsigned_char((int32_t)(((uint32_t)INT32_MIN) | ((uint32_t)(uint8_t)INT8_MIN)));
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convert_signed_char_to_unsigned_char((int8_t)INT8_MIN);
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convert_unsigned_char_to_signed_char((uint8_t)INT8_MIN);
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convert_signed_char_to_unsigned_int((int8_t)INT8_MIN);
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convert_unsigned_int_to_signed_char((((uint32_t)INT32_MIN) | ((uint32_t)(uint8_t)INT8_MIN)));
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convert_signed_int_to_signed_char((int32_t)(((uint32_t)INT32_MIN) | ((uint32_t)(uint8_t)INT8_MIN)));
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#elif defined(V7)
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// All bits except the source and destination sign bits are set.
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convert_unsigned_int_to_unsigned_int((uint32_t)INT32_MAX);
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convert_unsigned_char_to_unsigned_char((uint8_t)INT8_MAX);
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convert_signed_int_to_signed_int((int32_t)INT32_MAX);
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convert_signed_char_to_signed_char((int8_t)INT8_MAX);
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convert_unsigned_int_to_unsigned_char(~(((uint32_t)INT32_MIN) | ((uint32_t)(uint8_t)INT8_MIN)));
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// CHECK-V7: {{.*}}unsigned-integer-truncation.c:500:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 2147483519 (32-bit, unsigned) to type '{{.*}}' (aka 'unsigned char') changed the value to 127 (8-bit, unsigned)
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convert_unsigned_char_to_unsigned_int((uint8_t)INT8_MAX);
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convert_unsigned_char_to_signed_int((uint8_t)INT8_MAX);
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convert_signed_char_to_signed_int((int8_t)INT8_MAX);
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convert_unsigned_int_to_signed_int((uint32_t)INT32_MAX);
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convert_signed_int_to_unsigned_int((uint32_t)INT32_MAX);
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convert_signed_int_to_unsigned_char((int32_t)(~(((uint32_t)INT32_MIN) | ((uint32_t)(uint8_t)INT8_MIN))));
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convert_signed_char_to_unsigned_char((int8_t)INT8_MAX);
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convert_unsigned_char_to_signed_char((uint8_t)INT8_MAX);
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convert_signed_char_to_unsigned_int((int8_t)INT8_MAX);
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convert_unsigned_int_to_signed_char(~(((uint32_t)INT32_MIN) | ((uint32_t)(uint8_t)INT8_MIN)));
|
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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
|
|
|
|
return 0;
|
|
}
|
|
|
|
// CHECK-NOT: runtime error
|