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Re: [PATCH 6/9] sel-sched: Don't mess with register restores

From: Jeff Law <law at redhat dot com>
To: Segher Boessenkool <segher at kernel dot crashing dot org>, gcc-patches at gcc dot gnu dot org
Cc: bschmidt at redhat dot com
Date: Thu, 8 Sep 2016 11:54:33 -0600
Subject: Re: [PATCH 6/9] sel-sched: Don't mess with register restores
Authentication-results: sourceware.org; auth=none
References: <cover.1470015604.git.segher@kernel.crashing.org> <38963d815ea81b55d5b8e2ed85f2b347aad21395.1470015604.git.segher@kernel.crashing.org>

On 07/31/2016 07:42 PM, Segher Boessenkool wrote:

If selective scheduling copies register restores it confuses dwarf2cfi.

2016-06-07  Segher Boessenkool  <segher@kernel.crashing.org>

	* sel-sched-ir.c (init_global_and_expr_for_insn): Don't copy
	instructions with a REG_CFA_RESTORE note.

Similarly, I think you're papering over a lifetime problem of some kindhere.


jeff

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