martong added a comment. In D97849#2600220 <https://reviews.llvm.org/D97849#2600220>, @steakhal wrote:
> In D97849#2600201 <https://reviews.llvm.org/D97849#2600201>, @aaron.ballman > wrote: > >> This looks reasonable to me (good catch!), but is there a way for us to add >> a regression test for it? > > I'm not sure if it's possible to write a test for deterministically > demonstrating the bug - which is a non-deterministic crash. > So, even if we would have a test case, that would not catch the regression > deterministically. > We could include the minimal reproducer for CTU analysis - the way we > observed and tracked down this crash. > > AFAIK, it did not reproduce with memory sanitizers. Address and ubsan could not catch it (LLVM_USE_SANITIZER: Address;Undefined). And I had trouble with the Memory and MemoryWithOrigins setup because ninja could not generate the .inc files since clang-tblgen failed always with uninited errors. Fortunately, vlagrind could catch the error consistently all the time. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D97849/new/ https://reviews.llvm.org/D97849 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
