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Re: [PATCH] Fix PR66168: ICE due to incorrect invariant register info
- From: Steven Bosscher <stevenb dot gcc at gmail dot com>
- To: "Thomas Preud'homme" <thomas dot preudhomme at arm dot com>
- Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, Jeff Law <law at redhat dot com>
- Date: Tue, 19 May 2015 13:20:56 +0200
- Subject: Re: [PATCH] Fix PR66168: ICE due to incorrect invariant register info
- Authentication-results: sourceware.org; auth=none
- References: <000001d0921d$003785d0$00a69170$ at arm dot com>
On Tue, May 19, 2015 at 12:17 PM, Thomas Preud'homme wrote:
> 2015-05-18 Thomas Preud'homme
>
> PR rtl-optimization/66168
> * loop-invariant.c (move_invariant_reg): Set inv->reg to destination
> of inv->insn when moving an invariant without introducing a temporary
> register.
Not OK.
This will break in move_invariants() when it looks at REGNO (inv->reg).
Ciao!
Steven