[LLVMdev] -f[no-]omit-frame-pointer

[Kostya Serebryany]

Hi,

It looks like the default for -fomit-frame-pointer has recently changed
from "no" to "yes at O1 and higher", but I did not see the commit.
Was that intentional?

(AddressSanitizer uses frame pointers to unwind stack, that's how we
noticed).

Thanks,

--kcc
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