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Re: [RFC][AARCH64] TARGET_ATOMIC_ASSIGN_EXPAND_FENV hook

From: Kugan <kugan dot vivekanandarajah at linaro dot org>
To: Ramana Radhakrishnan <ramrad01 at arm dot com>
Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, Marcus Shawcroft <Marcus dot Shawcroft at arm dot com>, Richard Earnshaw <Richard dot Earnshaw at arm dot com>
Date: Fri, 02 May 2014 19:08:49 +1000
Subject: Re: [RFC][AARCH64] TARGET_ATOMIC_ASSIGN_EXPAND_FENV hook
Authentication-results: sourceware.org; auth=none
References: <535B9132 dot 40703 at linaro dot org> <535E3503 dot 3020203 at arm dot com> <535F1061 dot 90908 at linaro dot org>

> 
> +2014-04-29  Kugan Vivekanandarajah  <kuganv@linaro.org>
> +
> +	* config/aarch64/aarch64.c (TARGET_ATOMIC_ASSIGN_EXPAND_FENV): New
> +	define.
> +	* config/aarch64/aarch64-protos.h (aarch64_atomic_assign_expand_fenv):
> +	New function declaration.
> +	* config/aarch64/aarch64-builtins.c (aarch64_builtins) : Add
> +	AARCH64_BUILTIN_GET_FPCR, AARCH64_BUILTIN_SET_FPCR.
> +	AARCH64_BUILTIN_GET_FPSR and AARCH64_BUILTIN_SET_FPSR.
> +	(aarch64_init_builtins) : Initialize builtins
> +	__builtins_aarch64_set_fpcr, __builtins_aarch64_get_fpcr.
> +	__builtins_aarch64_set_fpsr and __builtins_aarch64_get_fpsr.
> +	(aarch64_expand_builtin) : Expand builtins __builtins_aarch64_set_fpcr
> +	__builtins_aarch64_get_fpcr, __builtins_aarch64_get_fpsr,
> +	and __builtins_aarch64_set_fpsr.
> +	(aarch64_atomic_assign_expand_fenv): New function.
> +	* config/aarch64/aarch64.md (set_fpcr): New pattern.
> +	(get_fpcr) : Likewise.
> +	(set_fpsr) : Likewise.
> +	(get_fpsr) : Likewise.
> +	(unspecv): Add UNSPECV_GET_FPCR and UNSPECV_SET_FPCR, UNSPECV_GET_FPSR
> +	 and UNSPECV_SET_FPSR.
> +	* doc/extend.texi (AARCH64 Built-in Functions) : Document
> +	__builtins_aarch64_set_fpcr, __builtins_aarch64_get_fpcr.
> +	__builtins_aarch64_set_fpsr and __builtins_aarch64_get_fpsr.
> 

Updated is based on the review at
http://gcc.gnu.org/ml/gcc-patches/2014-05/msg00041.html. FE_* values are
now changed to AARCH64_FE-*.

Thanks,
Kugan

Attachment: aarch64_v3.txt
Description: Text document

Follow-Ups:
- Re: [RFC][AARCH64] TARGET_ATOMIC_ASSIGN_EXPAND_FENV hook
  - From: Yufeng Zhang

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