| 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -analyzer-config c++-allocator-inlining=true -std=c++11 -verify -analyzer-config eagerly-assume=false %s |
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| 2 | |
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| 3 | void clang_analyzer_eval(bool); |
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| 4 | void clang_analyzer_warnOnDeadSymbol(int); |
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| 5 | |
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| 6 | typedef __typeof__(sizeof(int)) size_t; |
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| 7 | |
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| 8 | int conjure(); |
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| 9 | void exit(int); |
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| 10 | |
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| 11 | struct S { |
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| 12 | S() {} |
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| 13 | ~S() {} |
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| 14 | |
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| 15 | static S buffer[1000]; |
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| 16 | |
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| 17 | // This operator allocates stuff within the buffer. Additionally, it never |
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| 18 | // places anything at the beginning of the buffer. |
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| 19 | void *operator new(size_t size) { |
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| 20 | int i = conjure(); |
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| 21 | if (i == 0) |
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| 22 | exit(1); |
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| 23 | // Let's see if the symbol dies before new-expression is evaluated. |
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| 24 | // It shouldn't. |
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| 25 | clang_analyzer_warnOnDeadSymbol(i); |
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| 26 | return buffer + i; |
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| 27 | } |
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| 28 | }; |
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| 29 | |
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| 30 | void testIndexLiveness() { |
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| 31 | S *s = new S(); |
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| 32 | clang_analyzer_eval(s == S::buffer); // expected-warning{{FALSE}} |
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| 33 | } // expected-warning{{SYMBOL DEAD}} |
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| 34 | |
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