363dd8e4b8
The current argument order has "expected" and "actual" the wrong way around, so that the diff shows the change from expected to actual, not from actual to expected. Namely, if the expected diagnostics contains the string "foo", but the analyzer emits "bar", we really want to see: ``` - foo + bar ``` not ``` - bar + foo ``` since adapting to most changes would require applying that diff to the expected output. Differential Revision: https://reviews.llvm.org/D56340 llvm-svn: 350866
41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
// RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-config faux-bodies=true,model-path=%S/Inputs/Models -analyzer-output=plist-multi-file -verify %s -o %t
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// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/model-file.cpp.plist -
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typedef int* intptr;
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// This function is modeled and the p pointer is dereferenced in the model
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// function and there is no function definition available. The modeled
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// function can use any types that are available in the original translation
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// unit, for example intptr in this case.
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void modeledFunction(intptr p);
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// This function is modeled and returns true if the parameter is not zero
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// and there is no function definition available.
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bool notzero(int i);
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// This functions is not modeled and there is no function definition.
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// available
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bool notzero_notmodeled(int i);
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int main() {
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// There is a nullpointer dereference inside this function.
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modeledFunction(0);
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int p = 0;
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if (notzero(p)) {
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// It is known that p != 0 because of the information provided by the
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// model of the notzero function.
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int j = 5 / p;
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}
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if (notzero_notmodeled(p)) {
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// There is no information about the value of p, because
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// notzero_notmodeled is not modeled and the function definition
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// is not available.
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int j = 5 / p; // expected-warning {{Division by zero}}
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}
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return 0;
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}
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