Congratulations, you proved that a register push is faster than a 3 byte
memory push. I believe this is exactly what I said would happen if the
autovar pointer wound up being enregistered.
However, it is NOT what GCC will generate for pushing params to static
strings.
For that you're going to get a 5 byte PUSH imm32.
----- Original Message -----
From: "Denis Vlasenko" <[email protected]>
To: <[email protected]>; "Jesper Juhl" <[email protected]>;
"linux-kernel" <[email protected]>
Cc: "Andrew Morton" <[email protected]>; "Jeff Garzik" <[email protected]>;
"Domen Puncer" <[email protected]>
Sent: Tuesday, June 21, 2005 09:06
Subject: Re: [RFC] cleanup patches for strings
Took 9574 CPU cycles Took 8068 CPU cycles
> 40: ff 75 f8 pushl 0xfffffff8(%ebp)
> 43: 58 pop %eax
> 80: 53 push %ebx
> 81: 58 pop %eax
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