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Re: [PATCH 5/6] [ARC] Add 'uncached' attribute.

From: Sandra Loosemore <sandra at codesourcery dot com>
To: Claudiu Zissulescu <Claudiu dot Zissulescu at synopsys dot com>, <gcc-patches at gcc dot gnu dot org>
Cc: <Francois dot Bedard at synopsys dot com>, <andrew dot burgess at embecosm dot com>
Date: Thu, 2 Nov 2017 20:26:35 -0600
Subject: Re: [PATCH 5/6] [ARC] Add 'uncached' attribute.
Authentication-results: sourceware.org; auth=none
References: <1509625835-22344-1-git-send-email-claziss@synopsys.com> <1509625835-22344-6-git-send-email-claziss@synopsys.com>

On 11/02/2017 06:30 AM, Claudiu Zissulescu wrote:

From: claziss <claziss@synopsys.com>

The _Uncached type qualifier can be used to bypass the cache without
resorting to declaring variables as volatile.

gcc/
2017-07-12  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc-protos.h (arc_is_uncached_mem_p): Function proto.
	* config/arc/arc.c (arc_handle_uncached_attribute): New function.
	(arc_attribute_table): Add 'uncached' attribute.
	(arc_print_operand): Print '.di' flag for uncached memory
	accesses.
	(arc_in_small_data_p): Do not consider for small data the uncached
	types.
	(arc_is_uncached_mem_p): New function.
	* config/arc/predicates.md (compact_store_memory_operand): Check
	for uncached memory accesses.
	(nonvol_nonimm_operand): Likewise.


I see no documentation here.

-Sandra

Follow-Ups:
- RE: [PATCH 5/6] [ARC] Add 'uncached' attribute.
  - From: Claudiu Zissulescu

References:
- [PATCH 0/6] [ARC] New baremetal features and fixes
  - From: Claudiu Zissulescu
- [PATCH 5/6] [ARC] Add 'uncached' attribute.
  - From: Claudiu Zissulescu

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