llvm-project/clang/test/Analysis/method-call-intra-p.cpp
Balazs Benics ffe7950ebc Reland "[analyzer] Deprecate -analyzer-store region flag"
I'm trying to remove unused options from the `Analyses.def` file, then
merge the rest of the useful options into the `AnalyzerOptions.def`.
Then make sure one can set these by an `-analyzer-config XXX=YYY` style
flag.
Then surface the `-analyzer-config` to the `clang` frontend;

After all of this, we can pursue the tablegen approach described
https://discourse.llvm.org/t/rfc-tablegen-clang-static-analyzer-engine-options-for-better-documentation/61488

In this patch, I'm proposing flag deprecations.
We should support deprecated analyzer flags for exactly one release. In
this case I'm planning to drop this flag in `clang-16`.

In the clang frontend, now we won't pass this option to the cc1
frontend, rather emit a warning diagnostic reminding the users about
this deprecated flag, which will be turned into error in clang-16.

Unfortunately, I had to remove all the tests referring to this flag,
causing a mass change. I've also added a test for checking this warning.

I've seen that `scan-build` also uses this flag, but I think we should
remove that part only after we turn this into a hard error.

Reviewed By: martong

Differential Revision: https://reviews.llvm.org/D126215
2022-06-14 09:20:41 +02:00

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C++

// RUN: %clang_analyze_cc1 -analyzer-checker=core -verify %s
// expected-no-diagnostics
// Intra-procedural C++ tests.
// Test relaxing function call arguments invalidation to be aware of const
// arguments. radar://10595327
struct InvalidateArgs {
void ttt(const int &nptr);
virtual void vttt(const int *nptr);
};
struct ChildOfInvalidateArgs: public InvalidateArgs {
virtual void vttt(const int *nptr);
};
void declarationFun(int x) {
InvalidateArgs t;
x = 3;
int y = x + 1;
int *p = 0;
t.ttt(y);
if (x == y)
y = *p; // no-warning
}
void virtualFun(int x) {
ChildOfInvalidateArgs t;
InvalidateArgs *pt = &t;
x = 3;
int y = x + 1;
int *p = 0;
pt->vttt(&y);
if (x == y)
y = *p; // no-warning
}