1 // RUN: %clang_cc1 -analyze -analyzer-checker=core,unix,debug.ExprInspection -verify %s 2 3 int printf(const char *restrict,...); 4 5 // Testing core functionality of the region store. 6 // radar://10127782 7 int compoundLiteralTest() { 8 int index = 0; 9 for (index = 0; index < 2; index++) { 10 int thing = (int []){0, 1}[index]; 11 printf("thing: %i\n", thing); 12 } 13 return 0; 14 } 15 16 int compoundLiteralTest2() { 17 int index = 0; 18 for (index = 0; index < 3; index++) { 19 int thing = (int [][3]){{0,0,0}, {1,1,1}, {2,2,2}}[index][index]; 20 printf("thing: %i\n", thing); 21 } 22 return 0; 23 } 24 25 int concreteOffsetBindingIsInvalidatedBySymbolicOffsetAssignment(int length, 26 int i) { 27 int values[length]; 28 values[i] = 4; 29 return values[0]; // no-warning 30 } 31 32 struct X{ 33 int mem; 34 }; 35 int initStruct(struct X *st); 36 int structOffsetBindingIsInvalidated(int length, int i){ 37 struct X l; 38 initStruct(&l); 39 return l.mem; // no-warning 40 } 41 42 void clang_analyzer_eval(int); 43 void testConstraintOnRegionOffset(int *values, int length, int i){ 44 if (values[1] == 4) { 45 values[i] = 5; 46 clang_analyzer_eval(values[1] == 4);// expected-warning {{UNKNOWN}} 47 } 48 } 49 50 int initArray(int *values); 51 void testConstraintOnRegionOffsetStack(int *values, int length, int i) { 52 if (values[0] == 4) { 53 initArray(values); 54 clang_analyzer_eval(values[0] == 4);// expected-warning {{UNKNOWN}} 55 } 56 } 57
