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[PATCH, middle-end]: Fix PR 43057, [LTO] fold check: original tree changed by fold

From: Uros Bizjak <ubizjak at gmail dot com>
To: gcc-patches at gcc dot gnu dot org
Date: Sat, 20 Nov 2010 20:03:10 +0100
Subject: [PATCH, middle-end]: Fix PR 43057, [LTO] fold check: original tree changed by fold

Hello!

Attached patch fixes PR 43057 by unsharing arg0 argument.

2010-11-20  Uros Bizjak  <ubizjak@gmail.com>

	PR middle-end/43057
	* fold-const.c (fold_ternary_loc) <COND_EXPR>: Unshare arg0 when
	converting A ? 1 : 0 to A.

Patch was bootstrapped and regression tested on x86_64-pc-linux-gnu
{,-m32}. FWIW, "--enable-checking=all" bootstrap is still running and
it already compiled up to stage-2 gcc/dse.o. I will leave the
bootstrap overnight to see if it breaks (it probably won't).

OK for mainline and 4.5?

Uros.

Attachment: p.diff.txt
Description: Text document

Follow-Ups:
- Re: [PATCH, middle-end]: Fix PR 43057, [LTO] fold check: original tree changed by fold
  - From: Richard Guenther

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