1 // RUN: %clang -fsanitize=undefined %s -o %t && %t 2>&1 | FileCheck %s 2 // Verify deduplication works by ensuring only one diag is emitted. 3 #include <limits.h> 4 #include <stdio.h> 5 6 void overflow() { 7 int i = INT_MIN; 8 --i; 9 } 10 11 int main() { 12 // CHECK: Start 13 fprintf(stderr, "Start\n"); 14 15 // CHECK: runtime error 16 // CHECK-NOT: runtime error 17 // CHECK-NOT: runtime error 18 overflow(); 19 overflow(); 20 overflow(); 21 22 // CHECK: End 23 fprintf(stderr, "End\n"); 24 return 0; 25 } 26
