llvm-capstone/clang/test/Analysis/model-file.cpp
Hubert Tong 61c848d254 Reapply r362994 & co "[analyzer][tests] Add normalize_plist to replace diff_plist"
Following r363007, which reverted r362998, r362996, and r362994,
reapply with adjustments for the CRLF differences encountered with
Windows. Namely, the `-b` option of `diff` is employed, and the `grep`
patterns have `$` replaced with `[[:space:]]*$`.

llvm-svn: 363069
2019-06-11 14:21:32 +00:00

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
// RUN: %normalize_plist <%t | diff -ub %S/Inputs/expected-plists/model-file.cpp.plist -
typedef int* intptr;
// This function is modeled and the p pointer is dereferenced in the model
// function and there is no function definition available. The modeled
// function can use any types that are available in the original translation
// unit, for example intptr in this case.
void modeledFunction(intptr p);
// This function is modeled and returns true if the parameter is not zero
// and there is no function definition available.
bool notzero(int i);
// This functions is not modeled and there is no function definition.
// available
bool notzero_notmodeled(int i);
int main() {
// There is a nullpointer dereference inside this function.
modeledFunction(0);
int p = 0;
if (notzero(p)) {
// It is known that p != 0 because of the information provided by the
// model of the notzero function.
int j = 5 / p;
}
if (notzero_notmodeled(p)) {
// There is no information about the value of p, because
// notzero_notmodeled is not modeled and the function definition
// is not available.
int j = 5 / p; // expected-warning {{Division by zero}}
}
return 0;
}