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Re: PATCH: Add -plugin-save-temps
On Mon, May 16, 2011 at 8:20 AM, Alan Modra <amodra@gmail.com> wrote:
> On Mon, May 16, 2011 at 07:35:35AM -0700, H.J. Lu wrote:
>> On Mon, May 16, 2011 at 7:21 AM, Alan Modra <amodra@gmail.com> wrote:
>> > On Sun, May 15, 2011 at 02:15:03PM -0700, H.J. Lu wrote:
>> >> ? ? ? (plugin_call_cleanup): Don't call plugin cleanup_handler if
>> >> ? ? ? plugin_save_temps is true.
>> >
>> > Isn't this really just covering for gcc -save-temps bugs?
>> >
>>
>> It isn't straight forward since LTO plugin is invoked by linker,
>> not gcc driver. Ultimately LTO cleanup is controlled by linker.
>
> Yes, but lto-wrapper modifies its cleanup according to whether
> COLLECT_GCC_OPTIONS contains -save-temps. ?Why can't lto-plugin do the
> same?
>
1. It doesn't solve the problem for existing GCC.
2. To debug linker LTO bugs, we don't need other GCC
intermediate files.
--
H.J.