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TheRock/compiler/amd-llvm/compiler-rt/test/asan/TestCases/invalid-pointer-pairs-compare-errors.cpp
derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

108 lines
4.2 KiB
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// RUN: %clangxx_asan -O0 %s -o %t -mllvm -asan-detect-invalid-pointer-pair
// RUN: %env_asan_opts=detect_invalid_pointer_pairs=2:halt_on_error=0 %run %t 2>&1 | FileCheck %s
// XFAIL: msvc
#include <assert.h>
#include <stdlib.h>
int foo(char *p, char *q) {
return p > q;
}
char global1[100] = {}, global2[100] = {};
char __attribute__((used)) smallest_global[5] = {};
char small_global[7] = {};
char __attribute__((used)) little_global[10] = {};
char __attribute__((used)) medium_global[4000] = {};
char large_global[5000] = {};
char __attribute__((used)) largest_global[6000] = {};
int main() {
// Heap allocated memory.
char *heap1 = (char *)malloc(42);
char *heap2 = (char *)malloc(42);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(heap1, heap2);
free(heap1);
free(heap2);
heap1 = (char *)malloc(1024);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(heap1, heap1 + 1025);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(heap1 + 1024, heap1 + 1025);
free(heap1);
heap1 = (char *)malloc(4096);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(heap1, heap1 + 4097);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(heap1, 0);
// Global variables.
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(&global1[0], &global2[10]);
char *p = &small_global[0];
foo(p, p); // OK
foo(p, p + 7); // OK
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(p, p + 8);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(p - 1, p);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(p, p - 1);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(p - 1, p + 8);
p = &large_global[0];
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(p - 1, p);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(p, p - 1);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(p, &global1[0]);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(p, &small_global[0]);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(p, 0);
// Stack variables.
char stack1, stack2;
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(&stack1, &stack2);
// Mixtures.
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(heap1, &stack1);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
foo(heap1, &global1[0]);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
foo(&stack1, &global1[0]);
// CHECK: ERROR: AddressSanitizer: invalid-pointer-pair
// CHECK: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-compare-errors.cpp:[[@LINE+1]]
foo(&stack1, 0);
free(heap1);
return 0;
}