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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
40 lines
989 B
C++
40 lines
989 B
C++
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,unix.MismatchedDeallocator -std=c++11 -verify %s
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// expected-no-diagnostics
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typedef __typeof(sizeof(int)) size_t;
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void *malloc(size_t);
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void free(void *);
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//--------------------------------------------------------------------
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// Check that unix.Malloc + unix.MismatchedDeallocator does not enable
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// warnings produced by the alpha.cplusplus.NewDelete checker.
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//--------------------------------------------------------------------
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void testNewDeleteNoWarn() {
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int i;
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delete &i; // no-warning
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int *p1 = new int;
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delete ++p1; // no-warning
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int *p2 = new int;
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delete p2;
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delete p2; // no-warning
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int *p3 = new int; // no-warning
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int *p4 = new int;
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delete p4;
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int j = *p4; // no-warning
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}
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void testUseZeroAllocNoWarn() {
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int *p1 = (int *)operator new(0);
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*p1 = 1; // no-warning
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int *p2 = (int *)operator new[](0);
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p2[0] = 1; // no-warning
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int *p3 = new int[0];
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p3[0] = 1; // no-warning
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}
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