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Re: [PATCH 1/2][RS6000] .gnu.attribute Tag_GNU_Power_ABI_FP
- From: Joseph Myers <joseph at codesourcery dot com>
- To: Alan Modra <amodra at gmail dot com>
- Cc: <gcc-patches at gcc dot gnu dot org>, Segher Boessenkool <segher at kernel dot crashing dot org>
- Date: Wed, 28 Sep 2016 01:20:22 +0000
- Subject: Re: [PATCH 1/2][RS6000] .gnu.attribute Tag_GNU_Power_ABI_FP
- Authentication-results: sourceware.org; auth=none
- References: <20160928011145.GF3336@bubble.grove.modra.org>
On Wed, 28 Sep 2016, Alan Modra wrote:
> I've also added a new option, default on, that disables output of
> .gnu_attribute tags. That's needed because this patch alone
> introduces libstdc++ testsuite regressions, fixed by the next patch.
This option is missing documentation in invoke.texi.
> +mgnu-attr
> +Target Report Var(rs6000_gnu_attr) Init(-1) Save
> +Emit .gnu_attribute tags.
Why Init(-1)? That's normally for cases where there is code that checks
if it's still -1 (i.e. no option passed explicitly) and does something
different in that case, but I don't see any such code in this patch.
--
Joseph S. Myers
joseph@codesourcery.com