tree 009aca33c4314ca11f0609f56b8fa02503a95f22
parent a2b793c4d159ccaffbf921a0339096f2c9c35560
author reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> 1337094749 +0000
committer reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> 1337094749 +0000

for scalar==float, tis faster to always to MIN and MAX, than to put an ELSE
betwixt them.

    if (x < min) min = x; else if (x > max) max = x;

This expression forces the compiler to know if the min expression executed, and
insert a conditional jump before the max. Slow.

    if (x < min) min = x; if (x > max) max = x;

This version allows the compiler to emitt MINSS and MAXSS unconditionally, giving
us a loop with zero branches inside.


git-svn-id: http://skia.googlecode.com/svn/trunk@3939 2bbb7eff-a529-9590-31e7-b0007b416f81