forked from OSchip/llvm-project
88 lines
1.7 KiB
C++
88 lines
1.7 KiB
C++
// RUN: %clang_cc1 -analyze -analyzer-checker=core,alpha.core,debug.ExprInspection -verify %s
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void clang_analyzer_eval(bool);
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struct X0 { };
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bool operator==(const X0&, const X0&);
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// PR7287
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struct test { int a[2]; };
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void t2() {
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test p = {{1,2}};
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test q;
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q = p;
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}
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bool PR7287(X0 a, X0 b) {
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return operator==(a, b);
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}
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// Inlining non-static member operators mistakenly treated 'this' as the first
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// argument for a while.
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struct IntComparable {
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bool operator==(int x) const {
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return x == 0;
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}
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};
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void testMemberOperator(IntComparable B) {
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clang_analyzer_eval(B == 0); // expected-warning{{TRUE}}
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}
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namespace UserDefinedConversions {
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class Convertible {
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public:
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operator int() const {
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return 42;
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}
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operator bool() const {
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return true;
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}
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};
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void test(const Convertible &obj) {
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clang_analyzer_eval((int)obj == 42); // expected-warning{{TRUE}}
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clang_analyzer_eval(obj); // expected-warning{{TRUE}}
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}
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}
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namespace RValues {
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struct SmallOpaque {
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float x;
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int operator +() const {
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return (int)x;
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}
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};
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struct LargeOpaque {
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float x[4];
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int operator +() const {
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return (int)x[0];
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}
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};
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SmallOpaque getSmallOpaque() {
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SmallOpaque obj;
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obj.x = 1.0;
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return obj;
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}
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LargeOpaque getLargeOpaque() {
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LargeOpaque obj = LargeOpaque();
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obj.x[0] = 1.0;
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return obj;
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}
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void test(int coin) {
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// Force a cache-out when we try to conjure a temporary region for the operator call.
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// ...then, don't crash.
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clang_analyzer_eval(+(coin ? getSmallOpaque() : getSmallOpaque())); // expected-warning{{UNKNOWN}}
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clang_analyzer_eval(+(coin ? getLargeOpaque() : getLargeOpaque())); // expected-warning{{UNKNOWN}}
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}
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}
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