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Re: [PATCH] Add -mno-r11 option to suppress load of ppc64 static chain in indirect calls
On Thu, Jul 07, 2011 at 10:59:36AM +0200, Richard Guenther wrote:
> Hum. Can't the compiler figure this our itself per-call-site? At least
> the name of the command-line switch -m[no-]r11 is meaningless to me.
> Points-to information should be able to tell you if the function pointer
> points to a nested function.
Yeah. E.g. for C++ virtual method calls I believe all function pointers in
vtables should always ignore the static chain pointer, etc., because you
can't have a nested method.
Jakub