71 lines
5.0 KiB
C
71 lines
5.0 KiB
C
// RUN: %clang -x c -fsanitize=implicit-integer-truncation %s -DV0 -o %t && %run %t 2>&1 | not FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V0
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// RUN: %clang -x c -fsanitize=implicit-integer-truncation %s -DV1 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V1
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// RUN: %clang -x c -fsanitize=implicit-integer-truncation %s -DV2 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V2
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// RUN: %clang -x c -fsanitize=implicit-integer-truncation %s -DV3 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V3
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// RUN: %clang -x c -fsanitize=implicit-integer-truncation %s -DV4 -o %t && %run %t 2>&1 | not FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V4
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// RUN: %clang -x c -fsanitize=implicit-integer-truncation %s -DV5 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V5
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// RUN: %clang -x c -fsanitize=implicit-integer-truncation %s -DV6 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V6
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// RUN: %clang -x c++ -fsanitize=implicit-integer-truncation %s -DV0 -o %t && %run %t 2>&1 | not FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V0
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// RUN: %clang -x c++ -fsanitize=implicit-integer-truncation %s -DV1 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V1
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// RUN: %clang -x c++ -fsanitize=implicit-integer-truncation %s -DV2 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V2
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// RUN: %clang -x c++ -fsanitize=implicit-integer-truncation %s -DV3 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V3
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// RUN: %clang -x c++ -fsanitize=implicit-integer-truncation %s -DV4 -o %t && %run %t 2>&1 | not FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V4
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// RUN: %clang -x c++ -fsanitize=implicit-integer-truncation %s -DV5 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V5
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// RUN: %clang -x c++ -fsanitize=implicit-integer-truncation %s -DV6 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V6
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#include <stdint.h>
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int8_t positive6_convert_unsigned_int_to_signed_char(uint32_t x) {
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#line 100
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return x;
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}
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#line 1120 // !!!
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void test_positives() {
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// No bits set.
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positive6_convert_unsigned_int_to_signed_char(0);
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// One lowest bit set.
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positive6_convert_unsigned_int_to_signed_char(1);
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#if defined(V0)
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// All source bits set.
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positive6_convert_unsigned_int_to_signed_char((uint32_t)UINT32_MAX);
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#elif defined(V1)
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// Source 'Sign' bit set.
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positive6_convert_unsigned_int_to_signed_char((uint32_t)INT32_MIN);
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// CHECK-V1: {{.*}}integer-conversion.c:100:10: runtime error: implicit conversion from type 'uint32_t' (aka 'unsigned int') of value 2147483648 (32-bit, unsigned) to type 'int8_t' (aka 'signed char') changed the value to 0 (8-bit, signed)
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#elif defined(V2)
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// All bits except the source 'Sign' bit are set.
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positive6_convert_unsigned_int_to_signed_char((uint32_t)INT32_MAX);
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// CHECK-V2: {{.*}}integer-conversion.c:100:10: runtime error: implicit conversion from type 'uint32_t' (aka 'unsigned int') of value 2147483647 (32-bit, unsigned) to type 'int8_t' (aka 'signed char') changed the value to -1 (8-bit, signed)
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#elif defined(V3)
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// All destination bits set.
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positive6_convert_unsigned_int_to_signed_char((uint32_t)UINT8_MAX);
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// CHECK-V3: {{.*}}integer-conversion.c:100:10: runtime error: implicit conversion from type 'uint32_t' (aka 'unsigned int') of value 255 (32-bit, unsigned) to type 'int8_t' (aka 'signed char') changed the value to -1 (8-bit, signed)
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#elif defined(V4)
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// Destination 'sign' bit set.
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positive6_convert_unsigned_int_to_signed_char((uint32_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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positive6_convert_unsigned_int_to_signed_char(~((uint32_t)(uint8_t)INT8_MIN));
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// CHECK-V5: {{.*}}integer-conversion.c:100:10: runtime error: implicit conversion from type 'uint32_t' (aka 'unsigned int') of value 4294967167 (32-bit, unsigned) to type 'int8_t' (aka 'signed char') changed the value to 127 (8-bit, signed)
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#elif defined(V6)
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// Only the source and destination sign bits are set.
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positive6_convert_unsigned_int_to_signed_char((uint32_t)((uint32_t)INT32_MIN | (uint32_t)((uint8_t)INT8_MIN)));
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// CHECK-V6: {{.*}}integer-conversion.c:100:10: runtime error: implicit conversion from type 'uint32_t' (aka 'unsigned int') of value 2147483776 (32-bit, unsigned) to type 'int8_t' (aka 'signed char') changed the value to -128 (8-bit, signed)
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#else
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#error Some V* needs to be defined!
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#endif
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}
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// CHECK-NOT: implicit conversion
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int main() {
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test_positives();
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return 0;
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}
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