forked from OSchip/llvm-project
35 lines
894 B
C++
35 lines
894 B
C++
// RUN: %clang_cc1 -analyze -analyzer-store=region -analyzer-constraints=range -fblocks -analyzer-opt-analyze-nested-blocks -analyzer-checker=alpha.deadcode.IdempotentOperations -verify %s
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// C++ specific false positives
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extern void test(int i);
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extern void test_ref(int &i);
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// Test references affecting pseudoconstants
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void false1() {
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int a = 0;
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int five = 5;
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int &b = a;
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test(five * a); // expected-warning {{The right operand to '*' is always 0}}
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b = 4;
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}
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// Test not flagging idempotent operations because we aborted the analysis
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// of a path because of an unsupported construct.
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struct RDar9219143_Foo {
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~RDar9219143_Foo();
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operator bool() const;
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};
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RDar9219143_Foo foo();
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unsigned RDar9219143_bar();
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void RDar9219143_test() {
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unsigned i, e;
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for (i = 0, e = RDar9219143_bar(); i != e; ++i)
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if (foo())
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break;
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if (i == e) // no-warning
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return;
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}
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