From abd8cd13a026812e0fb35cd726ee437c8beb7cfc Mon Sep 17 00:00:00 2001
From: YunQiang Su <syq@gcc.gnu.org>
Date: Sat, 23 Dec 2023 16:40:42 +0800
Subject: [PATCH] MIPS: Don't add nan2008 option for -mtune=native

Users may wish just use -mtune=native for performance tuning only.
Let's don't make trouble for its case.

gcc/

	* config/mips/driver-native.cc (host_detect_local_cpu):
	don't add nan2008 option for -mtune=native.
---
 gcc/config/mips/driver-native.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gcc/config/mips/driver-native.cc b/gcc/config/mips/driver-native.cc
index 4ef48e149162..b8c37d692153 100644
--- a/gcc/config/mips/driver-native.cc
+++ b/gcc/config/mips/driver-native.cc
@@ -93,7 +93,8 @@ host_detect_local_cpu (int argc, const char **argv)
 fallback_cpu:
 #if defined (__mips_nan2008)
   /* Put the ret to the end of list, since it may be NULL.  */
-  ret = reconcat (ret, " -mnan=2008 ", ret, NULL);
+  if (arch)
+    ret = reconcat (ret, " -mnan=2008 ", ret, NULL);
 #endif
 
 #ifdef HAVE_GETAUXVAL
-- 
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