derek.holloway
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46 lines
2.9 KiB
C++
46 lines
2.9 KiB
C++
// RUN: %clangxx -DLSH_OVERFLOW -fno-wrapv -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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// RUN: %clangxx -DLSH_OVERFLOW -fno-wrapv -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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// 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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// 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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// 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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// 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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// 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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// 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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// 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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// 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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// RUN: %clangxx -DLSH_OVERFLOW -fno-wrapv -DOP='<<' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t12 && %run %t12
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// RUN: %clangxx -DLSH_OVERFLOW -fno-wrapv -DOP='>>' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t13 && %run %t13
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// RUN: %clangxx -DTOO_LOW -DOP='<<' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t14 && %run %t14
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// RUN: %clangxx -DTOO_LOW -DOP='>>' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t15 && %run %t15
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// RUN: %clangxx -DTOO_HIGH -DOP='<<' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t16 && %run %t16
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// RUN: %clangxx -DTOO_HIGH -DOP='>>' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t17 && %run %t17
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#include <stdint.h>
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int main() {
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int a = 1;
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unsigned b = 1;
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a <<= 31; // ok in C++11, not ok in C99/C11
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b <<= 31; // ok
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b <<= 1; // still ok, unsigned
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#ifdef LSH_OVERFLOW
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// CHECK-LSH_OVERFLOW: shift.cpp:[[@LINE+1]]:5: runtime error: left shift of negative value -2147483648
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a OP 1;
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#endif
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#ifdef TOO_LOW
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a = 0;
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// CHECK-TOO_LOW: shift.cpp:[[@LINE+1]]:5: runtime error: shift exponent -3 is negative
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a OP (-3);
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#endif
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#ifdef TOO_HIGH
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a = 0;
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// 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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a OP 32;
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#endif
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}
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