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Re: [PATCH, i386]: FIx PR target/12329, x86: local function declared with attribute((regparm(3))) gets corrupted parent frame pointer

From: Uros Bizjak <ubizjak at gmail dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Cc: "H.J. Lu" <hjl dot tools at gmail dot com>, "Ye, Joey" <joey dot ye at intel dot com>, "Guo, Xuepeng" <xuepeng dot guo at intel dot com>, "Ross Ridge" <rridge at csclub dot uwaterloo dot ca>, Richard Guenther <richard dot guenther at gmail dot com>
Date: Sat, 22 Mar 2008 20:48:13 +0100
Subject: Re: [PATCH, i386]: FIx PR target/12329, x86: local function declared with attribute((regparm(3))) gets corrupted parent frame pointer

Hello!

This is the final patch I checked into stack branch.

H.J. gcc/

2008-03-22  Uros Bizjak  <ubizjak@gmail.com>
	    H.J. Lu  <hongjiu.lu@intel.com>

	PR target/12329
	* config/i386/i386.c (ix86_function_regparm): Limit the number of
	register passing arguments to 2 for nested functions.

I think that we want hard error here, please look at [1] for the rationale.

[1] http://gcc.gnu.org/ml/gcc-patches/2008-03/msg01310.html

Thanks,
Uros.

Follow-Ups:
- Re: [PATCH, i386]: FIx PR target/12329, x86: local function declared with attribute((regparm(3))) gets corrupted parent frame pointer
  - From: H.J. Lu

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