diff options
Diffstat (limited to 'compiler-rt/test/ubsan/TestCases/ImplicitConversion/integer-conversion.c')
| -rw-r--r-- | compiler-rt/test/ubsan/TestCases/ImplicitConversion/integer-conversion.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/compiler-rt/test/ubsan/TestCases/ImplicitConversion/integer-conversion.c b/compiler-rt/test/ubsan/TestCases/ImplicitConversion/integer-conversion.c new file mode 100644 index 00000000000..e3260a95f8f --- /dev/null +++ b/compiler-rt/test/ubsan/TestCases/ImplicitConversion/integer-conversion.c @@ -0,0 +1,70 @@ +// 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 +// 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 +// 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 +// 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 +// 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 +// 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 +// 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 + +// 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 +// 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 +// 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 +// 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 +// 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 +// 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 +// 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 + +#include <stdint.h> + +int8_t positive6_convert_unsigned_int_to_signed_char(uint32_t x) { +#line 100 + return x; +} + +#line 1120 // !!! + +void test_positives() { + // No bits set. + positive6_convert_unsigned_int_to_signed_char(0); + + // One lowest bit set. + positive6_convert_unsigned_int_to_signed_char(1); + +#if defined(V0) + // All source bits set. + positive6_convert_unsigned_int_to_signed_char((uint32_t)UINT32_MAX); +#elif defined(V1) + // Source 'Sign' bit set. + positive6_convert_unsigned_int_to_signed_char((uint32_t)INT32_MIN); +// 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) +#elif defined(V2) + // All bits except the source 'Sign' bit are set. + positive6_convert_unsigned_int_to_signed_char((uint32_t)INT32_MAX); +// 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) +#elif defined(V3) + // All destination bits set. + positive6_convert_unsigned_int_to_signed_char((uint32_t)UINT8_MAX); +// 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) +#elif defined(V4) + // Destination 'sign' bit set. + positive6_convert_unsigned_int_to_signed_char((uint32_t)INT8_MIN); +#elif defined(V5) + // All bits except the destination 'sign' bit are set. + positive6_convert_unsigned_int_to_signed_char(~((uint32_t)(uint8_t)INT8_MIN)); +// 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) +#elif defined(V6) + // Only the source and destination sign bits are set. + positive6_convert_unsigned_int_to_signed_char((uint32_t)((uint32_t)INT32_MIN | (uint32_t)((uint8_t)INT8_MIN))); +// 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) +#else +#error Some V* needs to be defined! +#endif +} + +// CHECK-NOT: implicit conversion + +int main() { + test_positives(); + + return 0; +} |
