|  | // RUN: %clang_analyze_cc1 -analyzer-checker=debug.ExprInspection -verify %s | 
|  |  | 
|  | void clang_analyzer_eval(int); | 
|  |  | 
|  | void comparison_lt(int x, int y) { | 
|  | if (x < y) { | 
|  | clang_analyzer_eval(x < y);  // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y > x);  // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y < x);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x <= y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y >= x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x >= y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y <= x); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x == y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y == x); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x != y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y != x); // expected-warning{{TRUE}} | 
|  | } else { | 
|  | clang_analyzer_eval(x < y);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y > x);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y < x);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x <= y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y >= x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x >= y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y <= x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x == y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y == x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x != y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y != x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | } | 
|  | } | 
|  |  | 
|  | void comparison_gt(int x, int y) { | 
|  | if (x > y) { | 
|  | clang_analyzer_eval(x < y);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y > x);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y < x);  // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x <= y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y >= x); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x >= y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y <= x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x == y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y == x); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x != y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y != x); // expected-warning{{TRUE}} | 
|  | } else { | 
|  | clang_analyzer_eval(x < y);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y > x);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y < x);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x <= y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y >= x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x >= y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y <= x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x == y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y == x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x != y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y != x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | } | 
|  | } | 
|  |  | 
|  | void comparison_le(int x, int y) { | 
|  | if (x <= y) { | 
|  | clang_analyzer_eval(x < y);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y > x);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y < x);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x <= y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y >= x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x >= y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y <= x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x == y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y == x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x != y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y != x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | } else { | 
|  | clang_analyzer_eval(x < y);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y > x);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y < x);  // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x <= y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y >= x); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x >= y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y <= x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x == y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y == x); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x != y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y != x); // expected-warning{{TRUE}} | 
|  | } | 
|  | } | 
|  |  | 
|  | void comparison_ge(int x, int y) { | 
|  | if (x >= y) { | 
|  | clang_analyzer_eval(x < y);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y > x);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y < x);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x <= y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y >= x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x >= y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y <= x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x == y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y == x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x != y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y != x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | } else { | 
|  | clang_analyzer_eval(x < y);  // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y > x);  // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y < x);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x <= y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y >= x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x >= y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y <= x); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x == y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y == x); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x != y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y != x); // expected-warning{{TRUE}} | 
|  | } | 
|  | } | 
|  |  | 
|  | void comparison_eq(int x, int y) { | 
|  | if (x == y) { | 
|  | clang_analyzer_eval(x < y);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y > x);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y < x);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x <= y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y >= x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x >= y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y <= x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x == y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y == x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x != y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y != x); // expected-warning{{FALSE}} | 
|  | } else { | 
|  | clang_analyzer_eval(x < y);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y > x);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y < x);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x <= y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y >= x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x >= y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y <= x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x == y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y == x); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x != y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y != x); // expected-warning{{TRUE}} | 
|  | } | 
|  | } | 
|  |  | 
|  | void comparison_ne(int x, int y) { | 
|  | if (x != y) { | 
|  | clang_analyzer_eval(x < y);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y > x);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y < x);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x <= y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y >= x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x >= y); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y <= x); // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x == y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y == x); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x != y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y != x); // expected-warning{{TRUE}} | 
|  | } else { | 
|  | clang_analyzer_eval(x < y);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y > x);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y < x);  // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(x <= y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y >= x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x >= y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y <= x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x == y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y == x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x != y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y != x); // expected-warning{{FALSE}} | 
|  | } | 
|  | } | 
|  |  | 
|  | void comparison_le_ne(int x, int y) { | 
|  | if (x <= y) | 
|  | if (x != y) { | 
|  | clang_analyzer_eval(x < y);  // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y > x);  // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x >= y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y <= x); // expected-warning{{FALSE}} | 
|  | } | 
|  | } | 
|  |  | 
|  | void comparison_ge_ne(int x, int y) { | 
|  | if (x >= y) | 
|  | if (x != y) { | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y < x);  // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x <= y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y >= x); // expected-warning{{FALSE}} | 
|  | } | 
|  | } | 
|  |  | 
|  | void comparison_le_ge(int x, int y) { | 
|  | if (x <= y) | 
|  | if (x >= y) { | 
|  | clang_analyzer_eval(x == y); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(y == x); // expected-warning{{TRUE}} | 
|  | clang_analyzer_eval(x != y); // expected-warning{{FALSE}} | 
|  | clang_analyzer_eval(y != x); // expected-warning{{FALSE}} | 
|  | } | 
|  | } | 
|  |  | 
|  | // Test the logic of reaching the `Unknonw` tristate in CmpOpTable. | 
|  | void cmp_op_table_unknownX2(int x, int y, int z) { | 
|  | if (x >= y) { | 
|  | // x >= y    [1, 1] | 
|  | if (x + z < y) | 
|  | return; | 
|  | // x + z < y [0, 0] | 
|  | if (z != 0) | 
|  | return; | 
|  | // x < y     [0, 0] | 
|  | clang_analyzer_eval(x > y);  // expected-warning{{TRUE}} expected-warning{{FALSE}} | 
|  | } | 
|  | } |