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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
16 lines
581 B
Objective-C
16 lines
581 B
Objective-C
// RUN: %clang_analyze_cc1 -triple i386-apple-darwin9 -analyzer-checker=core,alpha.core -verify -fblocks %s
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// expected-no-diagnostics
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// Here is a case where a pointer is treated as integer, invalidated as an
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// integer, and then used again as a pointer. This test just makes sure
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// we don't crash.
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typedef unsigned uintptr_t;
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void test_pointer_invalidated_as_int_aux(uintptr_t* ptr);
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void test_pointer_invalidated_as_int(void) {
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void *x;
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test_pointer_invalidated_as_int_aux((uintptr_t*) &x);
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// Here we have a pointer to integer cast.
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uintptr_t y = (uintptr_t) x;
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}
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