Hi, all,

The constant UNSPEC_VOLATILE_FUNC_RETURN is now useless
in current nds32 implementation.  Remove it.

Committed as Rev.254799: http://gcc.gnu.org/r254799

gcc/
        * config/nds32/constants.md (UNSPEC_VOLATILE_FUNC_RETURN): Remove.



Best regards,
jasonwucj
>From 3bc69293a88b0614789be8f49d2ef2c28a8a99fe Mon Sep 17 00:00:00 2001
From: Chung-Ju Wu <jason...@easystack.cn>
Date: Thu, 9 Nov 2017 22:58:40 +0800
Subject: [PATCH 3/7] The FUNC_RETURN is useless in the current implementation.

---
 gcc/config/nds32/constants.md | 1 -
 1 file changed, 1 deletion(-)

diff --git a/gcc/config/nds32/constants.md b/gcc/config/nds32/constants.md
index e6f4a03..b45b1f7 100644
--- a/gcc/config/nds32/constants.md
+++ b/gcc/config/nds32/constants.md
@@ -32,7 +32,6 @@
 
 ;; The unspec_volatile operation index.
 (define_c_enum "unspec_volatile_element" [
-  UNSPEC_VOLATILE_FUNC_RETURN
   UNSPEC_VOLATILE_ISYNC
   UNSPEC_VOLATILE_ISB
   UNSPEC_VOLATILE_MFSR
-- 
1.8.3.1

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