From 722ac96cd69e38cf9689d29bdd3535a0eb8b2b93 Mon Sep 17 00:00:00 2001
From: Aleksandar Markovic <amarkovic@wavecomp.com>
Date: Thu, 2 Aug 2018 16:16:41 +0200
Subject: [PATCH] elf: Don't check FCR31_NAN2008 bit for nanoMIPS

nanoMIPS is always NaN2008 compliant, and rules for checking
FCR31's NAN2008 bit are obsoleted.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
---
 linux-user/mips/cpu_loop.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c
index 1d3dc9e913..c9c20cf8b7 100644
--- a/linux-user/mips/cpu_loop.c
+++ b/linux-user/mips/cpu_loop.c
@@ -747,6 +747,9 @@ void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
     if (regs->cp0_epc & 1) {
         env->hflags |= MIPS_HFLAG_M16;
     }
+    if (env->insn_flags & ISA_NANOMIPS32) {
+        return;
+    }
     if (((info->elf_flags & EF_MIPS_NAN2008) != 0) !=
         ((env->active_fpu.fcr31 & (1 << FCR31_NAN2008)) != 0)) {
         if ((env->active_fpu.fcr31_rw_bitmask &