From: Hans-Peter Nilsson <hp@bitrange.com>
Date: Thu, 31 Dec 2020 23:47:36 +0000 (+0100)
Subject: gas: Change to "swym 0" as canonical nop insn for MMIX
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=64d05a4334bd7624e8e0905465b53ed7f0144cb2;p=binutils-gdb.git

gas: Change to "swym 0" as canonical nop insn for MMIX

While "set $0, $0" works, that's not the documented instruction to do
nothing for MMIX.  However, I'm not changing it for "nop_type 5" as
seen in gas.exp and org-1.s, because "set $0, $0" seems like it could
be re-used there, for some future ISA.

gas/
	* config/tc-mmix.h (md_single_noop_insn): Change to "swym 0".
---

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 8cdf93b6a2e..b5a352f5736 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,7 @@
+2021-01-01  Hans-Peter Nilsson  <hp@bitrange.com>
+
+	* config/tc-mmix.h (md_single_noop_insn): Change to "swym 0".
+
 2020-12-18  Alan Modra  <amodra@gmail.com>
 
 	* ecoff.c (ecoff_frob_symbol): Rename scom_section to
diff --git a/gas/config/tc-mmix.h b/gas/config/tc-mmix.h
index 2d8e226dc80..bd597dbc075 100644
--- a/gas/config/tc-mmix.h
+++ b/gas/config/tc-mmix.h
@@ -229,4 +229,4 @@ extern void mmix_md_do_align (int, char *, int, int);
 /* MMIX has global register symbols.  */
 #define TC_GLOBAL_REGISTER_SYMBOL_OK
 
-#define md_single_noop_insn "set $0, $0"
+#define md_single_noop_insn "swym 0"