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Re: PATCH: PR target/35657: TDmode isn't aligned at 128bit when passing to a function

From: Mark Mitchell <mark at codesourcery dot com>
To: Richard Guenther <richard dot guenther at gmail dot com>
Cc: Jan Hubicka <jh at suse dot cz>, Uros Bizjak <ubizjak at gmail dot com>, "H.J. Lu" <hjl dot tools at gmail dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>, "Girkar, Milind" <milind dot girkar at intel dot com>, david dot l dot kreitz at intel dot com, Jan Hubicka <hubicka at ucw dot cz>
Date: Thu, 27 Mar 2008 10:54:23 -0700
Subject: Re: PATCH: PR target/35657: TDmode isn't aligned at 128bit when passing to a function
References: <6dc9ffc80803270633v25be5051i90bf86a6a2182822@mail.gmail.com> <5787cf470803270702o76651c11gb9ef9eea338fe3e8@mail.gmail.com> <20080327143353.GR4732@kam.mff.cuni.cz> <84fc9c000803270940p54c47c3bg312311d5e5cb4f98@mail.gmail.com>

Richard Guenther wrote:

On Thu, Mar 27, 2008 at 3:33 PM, Jan Hubicka <jh@suse.cz> wrote:
Regarding 4.3.1 support - since this is an ABI change w.r.t released
 > compiler, RMs should have their last word. IMO, at least a notice in
 > release notes is needed
 RM has last word here, for sure, but since the use of DFP currently is
 minimal and is supposed to rise for next major release, I would preffer
 fixing the issue in 4.3.1 rather than waiting for anohter half a year.
 With news.html update for sure ;)
I tend to agree. How often do you plan to change the DFP ABI? ;)

I agree too, but unhappily. ABI changes really hurt GCC's acceptance; they're one of the things that users most often complain about. :-(

--
Mark Mitchell
CodeSourcery
mark@codesourcery.com
(650) 331-3385 x713

Follow-Ups:
- Re: PATCH: PR target/35657: TDmode isn't aligned at 128bit when passing to a function
  - From: H.J. Lu

References:
- PATCH: PR target/35657: TDmode isn't aligned at 128bit when passing to a function
  - From: H.J. Lu
- Re: PATCH: PR target/35657: TDmode isn't aligned at 128bit when passing to a function
  - From: Uros Bizjak
- Re: PATCH: PR target/35657: TDmode isn't aligned at 128bit when passing to a function
  - From: Jan Hubicka
- Re: PATCH: PR target/35657: TDmode isn't aligned at 128bit when passing to a function
  - From: Richard Guenther

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