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ffe7950ebc
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
42 lines
989 B
C
42 lines
989 B
C
// RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.core,debug.ExprInspection -verify -analyzer-config eagerly-assume=false %s
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void clang_analyzer_eval(int);
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void clang_analyzer_warnIfReached(void);
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void f(void) {
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void (*p)(void);
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p = f;
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p = &f;
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p();
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(*p)();
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}
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void g(void (*fp)(void));
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void f2(void) {
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g(f);
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}
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void f3(void (*f)(void), void (*g)(void)) {
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clang_analyzer_eval(!f); // expected-warning{{UNKNOWN}}
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f();
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clang_analyzer_eval(!f); // expected-warning{{FALSE}}
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clang_analyzer_eval(!g); // expected-warning{{UNKNOWN}}
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(*g)();
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clang_analyzer_eval(!g); // expected-warning{{FALSE}}
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}
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void nullFunctionPointerConstant(void) {
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void (*f)(void) = 0;
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f(); // expected-warning{{Called function pointer is null}}
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clang_analyzer_warnIfReached(); // no-warning
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}
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void nullFunctionPointerConstraint(void (*f)(void)) {
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if (f)
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return;
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f(); // expected-warning{{Called function pointer is null}}
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clang_analyzer_warnIfReached(); // no-warning
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}
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