Examine each case individually...
Any code that did a "sizeof(foo)" is [very] likely to give different
results.
Also, if there are several instances of "foo" being passed around as
parameter, you may find the generated code gets somewhat worse if "foo" used
to be a stack based autovar. On x86, the const[] implementation will always
cause a 5 byte PUSH for a parameter, whereas the autovar pointer
implementation often will be a shorter 3 byte EBP relative push. With many
instances of 'foo' usage (or used in a loop), you may be better off paying
the price of an autovar init during prolog to get the cheaper parm pushes
later.
----- Original Message -----
From: "Jesper Juhl" <[email protected]>
To: "linux-kernel" <[email protected]>
Cc: "Andrew Morton" <[email protected]>; "Jeff Garzik" <[email protected]>;
"Domen Puncer" <[email protected]>
Sent: Monday, June 20, 2005 18:46
Subject: [RFC] cleanup patches for strings
> from the form
> [const] char *foo = "blah";
> to
> [const] char foo[] = "blah";
-
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