[llvm-dev] bug report on mem2reg

[David Blaikie via llvm-dev]

Tried testing it with things like Undefined Behaivor Sanitizer (or other
sanitizers - memory/address) or valgrind?

Often "program works sometimes and doesn't work other times" is because the
program has undefined behavior in it & the times its working are just luck.

On Mon, May 11, 2020 at 8:41 PM liubaosen at tsinghua.edu.cn via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Hi, all,
>
> I think I found a bug on mem2reg in a particular case.
> When I ran opt -mem2reg -basicaa -scalar-evolution -loops -da -analyze
> opts.ll, it collapsed. While without mem2reg option, it runs well. so I
> guess it has something to do with mem2reg.
> The relative files have been affixed, please check them for me.
> Thanks in advance.
>
> ------------------------------
> liubaosen at tsinghua.edu.cn
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