| 1 | // RUN: %clangxx -DLSH_OVERFLOW -DOP='<<' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t1 && not %run %t1 2>&1 | FileCheck %s --check-prefix=CHECK-LSH_OVERFLOW |
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| 2 | // RUN: %clangxx -DLSH_OVERFLOW -DOP='<<=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t2 && not %run %t2 2>&1 | FileCheck %s --check-prefix=CHECK-LSH_OVERFLOW |
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| 3 | // RUN: %clangxx -DTOO_LOW -DOP='<<' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t3 && not %run %t3 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW |
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| 4 | // RUN: %clangxx -DTOO_LOW -DOP='>>' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t4 && not %run %t4 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW |
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| 5 | // RUN: %clangxx -DTOO_LOW -DOP='<<=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t5 && not %run %t5 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW |
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| 6 | // RUN: %clangxx -DTOO_LOW -DOP='>>=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t6 && not %run %t6 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW |
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| 7 | // RUN: %clangxx -DTOO_HIGH -DOP='<<' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t7 && not %run %t7 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH |
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| 8 | // RUN: %clangxx -DTOO_HIGH -DOP='>>' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t8 && not %run %t8 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH |
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| 9 | // RUN: %clangxx -DTOO_HIGH -DOP='<<=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t9 && not %run %t9 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH |
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| 10 | // RUN: %clangxx -DTOO_HIGH -DOP='>>=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t10 && not %run %t10 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH |
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| 11 | |
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| 12 | // RUN: %clangxx -DLSH_OVERFLOW -DOP='<<' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t12 && %run %t12 |
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| 13 | // RUN: %clangxx -DLSH_OVERFLOW -DOP='>>' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t13 && %run %t13 |
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| 14 | // RUN: %clangxx -DTOO_LOW -DOP='<<' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t14 && %run %t14 |
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| 15 | // RUN: %clangxx -DTOO_LOW -DOP='>>' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t15 && %run %t15 |
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| 16 | // RUN: %clangxx -DTOO_HIGH -DOP='<<' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t16 && %run %t16 |
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| 17 | // RUN: %clangxx -DTOO_HIGH -DOP='>>' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t17 && %run %t17 |
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| 18 | |
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| 19 | #include <stdint.h> |
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| 20 | |
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| 21 | int main() { |
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| 22 | int a = 1; |
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| 23 | unsigned b = 1; |
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| 24 | |
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| 25 | a <<= 31; // ok in C++11, not ok in C99/C11 |
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| 26 | b <<= 31; // ok |
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| 27 | b <<= 1; // still ok, unsigned |
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| 28 | |
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| 29 | #ifdef LSH_OVERFLOW |
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| 30 | // CHECK-LSH_OVERFLOW: shift.cpp:[[@LINE+1]]:5: runtime error: left shift of negative value -2147483648 |
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| 31 | a OP 1; |
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| 32 | #endif |
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| 33 | |
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| 34 | #ifdef TOO_LOW |
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| 35 | a = 0; |
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| 36 | // CHECK-TOO_LOW: shift.cpp:[[@LINE+1]]:5: runtime error: shift exponent -3 is negative |
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| 37 | a OP (-3); |
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| 38 | #endif |
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| 39 | |
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| 40 | #ifdef TOO_HIGH |
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| 41 | a = 0; |
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| 42 | // CHECK-TOO_HIGH: shift.cpp:[[@LINE+1]]:5: runtime error: shift exponent 32 is too large for 32-bit type 'int' |
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| 43 | a OP 32; |
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| 44 | #endif |
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| 45 | } |
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| 46 | |
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