This is the mail archive of the libc-alpha@sourceware.org mailing list for the glibc project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [PATCH] Add branch prediction favouring normal numbers

On Wednesday 26 December 2012 04:54:32 Siddhesh Poyarekar wrote:
> -  if      (EX> -42)                 norm(x,y,p);
> -  else if (EX==-42 && X[1]>=TWO10)  norm(x,y,p);
> -  else                              denorm(x,y,p);
> +  if (__builtin_expect (EX> -42 || (EX==-42 && X[1]>=TWO10), 1))
> +    norm(x,y,p);

we have __glibc_unlikely & __glibc_likely now
-mike

Attachment: signature.asc
Description: This is a digitally signed message part.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]