1651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines// RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.ExprInspection -triple x86_64-apple-darwin13 -Wno-shift-count-overflow -verify %s 2bf7f77ac1cd1f31fc6bf2072327eeee7baed5c6aJordan Rose 3bf7f77ac1cd1f31fc6bf2072327eeee7baed5c6aJordan Rosevoid clang_analyzer_eval(int); 4bf7f77ac1cd1f31fc6bf2072327eeee7baed5c6aJordan Rose#define CHECK(expr) if (!(expr)) return; clang_analyzer_eval(expr) 5bf7f77ac1cd1f31fc6bf2072327eeee7baed5c6aJordan Rose 6bf7f77ac1cd1f31fc6bf2072327eeee7baed5c6aJordan Rosevoid testPersistentConstraints(int x, int y) { 7bf7f77ac1cd1f31fc6bf2072327eeee7baed5c6aJordan Rose // Sanity check 8bf7f77ac1cd1f31fc6bf2072327eeee7baed5c6aJordan Rose CHECK(x); // expected-warning{{TRUE}} 9bf7f77ac1cd1f31fc6bf2072327eeee7baed5c6aJordan Rose CHECK(x & 1); // expected-warning{{TRUE}} 10bf7f77ac1cd1f31fc6bf2072327eeee7baed5c6aJordan Rose 11bf7f77ac1cd1f31fc6bf2072327eeee7baed5c6aJordan Rose // False positives due to SValBuilder giving up on certain kinds of exprs. 12bf7f77ac1cd1f31fc6bf2072327eeee7baed5c6aJordan Rose CHECK(1 - x); // expected-warning{{UNKNOWN}} 13bf7f77ac1cd1f31fc6bf2072327eeee7baed5c6aJordan Rose CHECK(x & y); // expected-warning{{UNKNOWN}} 14651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines} 15651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 16651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesint testConstantShifts_PR18073(int which) { 17651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // FIXME: We should have a checker that actually specifically checks bitwise 18651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // shifts against the width of the LHS's /static/ type, rather than just 19651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // having BasicValueFactory return "undefined" when dealing with two constant 20651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // operands. 21651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines switch (which) { 22651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case 1: 23651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return 0ULL << 63; // no-warning 24651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case 2: 25651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return 0ULL << 64; // expected-warning{{The result of the '<<' expression is undefined}} 26651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case 3: 27651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return 0ULL << 65; // expected-warning{{The result of the '<<' expression is undefined}} 28651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 29651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines default: 30651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return 0; 31651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 32bf7f77ac1cd1f31fc6bf2072327eeee7baed5c6aJordan Rose}