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Re: __builtin_add_overflow on clang

From: Paul Eggert
Subject: Re: __builtin_add_overflow on clang
Date: Tue, 27 Aug 2019 18:06:41 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0

Bruno Haible wrote:
by assuming that, on a given platform, the compiler-rt of clang
is found, you are treating clang as a vendor compiler. I.e. you are effectively
denying the users of these platforms the freedom to rebuild clang from source.

That's a lot more important than getting integer multiplication to work a bit faster on macOS! So I reverted that macOS performance tweak. Thanks for the analysis.

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