1*0a6a1f1dSLionel Sambuc // RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.ExprInspection -triple x86_64-apple-darwin13 -Wno-shift-count-overflow -verify %s 2f4a2713aSLionel Sambuc 3f4a2713aSLionel Sambuc void clang_analyzer_eval(int); 4f4a2713aSLionel Sambuc #define CHECK(expr) if (!(expr)) return; clang_analyzer_eval(expr) 5f4a2713aSLionel Sambuc testPersistentConstraints(int x,int y)6f4a2713aSLionel Sambucvoid testPersistentConstraints(int x, int y) { 7f4a2713aSLionel Sambuc // Sanity check 8f4a2713aSLionel Sambuc CHECK(x); // expected-warning{{TRUE}} 9f4a2713aSLionel Sambuc CHECK(x & 1); // expected-warning{{TRUE}} 10f4a2713aSLionel Sambuc 11f4a2713aSLionel Sambuc // False positives due to SValBuilder giving up on certain kinds of exprs. 12f4a2713aSLionel Sambuc CHECK(1 - x); // expected-warning{{UNKNOWN}} 13f4a2713aSLionel Sambuc CHECK(x & y); // expected-warning{{UNKNOWN}} 14f4a2713aSLionel Sambuc } 15*0a6a1f1dSLionel Sambuc testConstantShifts_PR18073(int which)16*0a6a1f1dSLionel Sambucint testConstantShifts_PR18073(int which) { 17*0a6a1f1dSLionel Sambuc // FIXME: We should have a checker that actually specifically checks bitwise 18*0a6a1f1dSLionel Sambuc // shifts against the width of the LHS's /static/ type, rather than just 19*0a6a1f1dSLionel Sambuc // having BasicValueFactory return "undefined" when dealing with two constant 20*0a6a1f1dSLionel Sambuc // operands. 21*0a6a1f1dSLionel Sambuc switch (which) { 22*0a6a1f1dSLionel Sambuc case 1: 23*0a6a1f1dSLionel Sambuc return 0ULL << 63; // no-warning 24*0a6a1f1dSLionel Sambuc case 2: 25*0a6a1f1dSLionel Sambuc return 0ULL << 64; // expected-warning{{The result of the '<<' expression is undefined}} 26*0a6a1f1dSLionel Sambuc case 3: 27*0a6a1f1dSLionel Sambuc return 0ULL << 65; // expected-warning{{The result of the '<<' expression is undefined}} 28*0a6a1f1dSLionel Sambuc 29*0a6a1f1dSLionel Sambuc default: 30*0a6a1f1dSLionel Sambuc return 0; 31*0a6a1f1dSLionel Sambuc } 32*0a6a1f1dSLionel Sambuc }