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Re: Using __builtin_expect (likely/unlikely macros)

From: Paul Eggert
Subject: Re: Using __builtin_expect (likely/unlikely macros)
Date: Sun, 14 Apr 2019 18:18:13 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1

Alex Gramiak wrote:
the likely/unlikely
macros are a nice way to indicate that a branch is exceedingly

The cost (in making the C code harder to read, write and maintain) so often exceeds that benefit that I'd rather avoid these macros unless there's a good performance case for putting them in.

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