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ceb639dbee
Due to RVO the target region of a function that returns an object by value isn't necessarily a temporary object region; it may be an arbitrary memory region. In particular, it may be a field of a bigger object. Make sure we don't invalidate the bigger object when said function is evaluated conservatively. Differential Revision: https://reviews.llvm.org/D63968 llvm-svn: 364870
26 lines
550 B
C++
26 lines
550 B
C++
// RUN: %clang_analyze_cc1 -analyzer-checker core,cplusplus \
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// RUN: -analyzer-checker debug.ExprInspection -verify %s
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void clang_analyzer_eval(bool);
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struct A {
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int x;
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};
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A getA();
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struct B {
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int *p;
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A a;
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B(int *p) : p(p), a(getA()) {}
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};
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void foo() {
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B b1(nullptr);
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clang_analyzer_eval(b1.p == nullptr); // expected-warning{{TRUE}}
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B b2(new int); // No leak yet!
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clang_analyzer_eval(b2.p == nullptr); // expected-warning{{FALSE}}
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// expected-warning@-1{{Potential leak of memory pointed to by 'b2.p'}}
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}
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