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
33 lines
883 B
C
33 lines
883 B
C
// RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.core,alpha.unix,alpha.security.ArrayBound -verify %s
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// expected-no-diagnostics
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//===----------------------------------------------------------------------===//
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// This file tests cases where we should not flag out-of-bounds warnings.
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//===----------------------------------------------------------------------===//
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void f(void) {
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long x = 0;
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char *y = (char*) &x;
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char c = y[0] + y[1] + y[2]; // no-warning
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short *z = (short*) &x;
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short s = z[0] + z[1]; // no-warning
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}
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void g(void) {
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int a[2];
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char *b = (char*)a;
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b[3] = 'c'; // no-warning
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}
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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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void field(void) {
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struct vec { size_t len; int data[0]; };
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struct vec *a = malloc(sizeof(struct vec) + 10*sizeof(int));
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a->len = 10;
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a->data[1] = 5; // no-warning
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free(a);
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}
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