| 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix,debug.ExprInspection -verify -analyzer-config eagerly-assume=false %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 | |