[cfe-dev] Enormous memory usage of clang

Wed Jul 4 16:35:21 PDT 2012

What clang version are you using? What target?

I just tried 159724 on linux x86-64 and "clang++ -c -O2 botan.ii"
peaks at about 366 MB.

On 4 July 2012 14:18, Konstantin Tokarev <annulen at yandex.ru> wrote:
> Hi all,
>
> I've found case when clang consumes much more memory that GCC (maybe it's a memory leak)
>
> Attachement is preprocessed translation unit from amalgamated Botan library.
>
> clang++ -c -O0 botan.ii                   # OK
> clang++ -c -O2 botan.ii                   # Memory usage reaches 1Gb and continues to grow
> clang++ -S -emit-llvm -O2 botan.i   # OK
> llc -O2 botan.s                               # OK
>
>  --
> Regards,
> Konstantin
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