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gerrit-public.fairphone.software / platform / external / compiler-rt / dec793732650d7d4d5f66511ec59f04a451315fa / . / test / ubsan / TestCases / Integer / shift.cpp
blob: c8e01afcf16f67a9c781ca18ccad06ae7710b3a3 [file] [log] [blame]
Pirama Arumuga Nainar7c915052015-04-08 08:58:29 -0700[diff] [blame]1// RUN: %clangxx -DLSH_OVERFLOW -DOP='<<' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-LSH_OVERFLOW
2// RUN: %clangxx -DLSH_OVERFLOW -DOP='<<=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-LSH_OVERFLOW
3// RUN: %clangxx -DTOO_LOW -DOP='<<' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW
4// RUN: %clangxx -DTOO_LOW -DOP='>>' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW
5// RUN: %clangxx -DTOO_LOW -DOP='<<=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW
6// RUN: %clangxx -DTOO_LOW -DOP='>>=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW
7// RUN: %clangxx -DTOO_HIGH -DOP='<<' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH
8// RUN: %clangxx -DTOO_HIGH -DOP='>>' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH
9// RUN: %clangxx -DTOO_HIGH -DOP='<<=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH
10// RUN: %clangxx -DTOO_HIGH -DOP='>>=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH
11
12// RUN: %clangxx -DLSH_OVERFLOW -DOP='<<' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t && %run %t
13// RUN: %clangxx -DLSH_OVERFLOW -DOP='>>' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t && %run %t
14// RUN: %clangxx -DTOO_LOW -DOP='<<' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t && %run %t
15// RUN: %clangxx -DTOO_LOW -DOP='>>' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t && %run %t
16// RUN: %clangxx -DTOO_HIGH -DOP='<<' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t && %run %t
17// RUN: %clangxx -DTOO_HIGH -DOP='>>' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t && %run %t
Stephen Hines2d1fdb22014-05-28 23:58:16 -0700[diff] [blame]18
19#include <stdint.h>
20
21int main() {
22 int a = 1;
23 unsigned b = 1;
24
25 a <<= 31; // ok in C++11, not ok in C99/C11
26 b <<= 31; // ok
27 b <<= 1; // still ok, unsigned
28
29#ifdef LSH_OVERFLOW
Pirama Arumuga Nainar7c915052015-04-08 08:58:29 -0700[diff] [blame]30 // CHECK-LSH_OVERFLOW: shift.cpp:[[@LINE+1]]:5: runtime error: left shift of negative value -2147483648
Stephen Hines2d1fdb22014-05-28 23:58:16 -0700[diff] [blame]31 a OP 1;
32#endif
33
34#ifdef TOO_LOW
Pirama Arumuga Nainar7c915052015-04-08 08:58:29 -0700[diff] [blame]35 a = 0;
36 // CHECK-TOO_LOW: shift.cpp:[[@LINE+1]]:5: runtime error: shift exponent -3 is negative
Stephen Hines2d1fdb22014-05-28 23:58:16 -0700[diff] [blame]37 a OP (-3);
38#endif
39
40#ifdef TOO_HIGH
41 a = 0;
Pirama Arumuga Nainar7c915052015-04-08 08:58:29 -0700[diff] [blame]42 // CHECK-TOO_HIGH: shift.cpp:[[@LINE+1]]:5: runtime error: shift exponent 32 is too large for 32-bit type 'int'
Stephen Hines2d1fdb22014-05-28 23:58:16 -0700[diff] [blame]43 a OP 32;
44#endif
45}