From 50dd9600ab1ad8933704ee85289191d9c65ba444 Mon Sep 17 00:00:00 2001
From: Petar Jovanovic <mips32r2@gmail.com>
Date: Fri, 19 Apr 2019 14:04:26 +0000
Subject: [PATCH] mips: fix mips32r6 and mips64r6 compilation issue

Add missing variable declarations.
Modify local_sys_write_stderr to use movn if available, and use
seleqz/selnez instructions otherwise.

Backported from upstream commit
50dd9600ab1ad8933704ee85289191d9c65ba444.

Signed-off-by: Stefan Maksimovic <stefan.maksimovic@rt-rk.com>
---
 VEX/priv/guest_mips_toIR.c | 1 +
 coregrind/m_debuglog.c     | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/VEX/priv/guest_mips_toIR.c b/VEX/priv/guest_mips_toIR.c
index eb437ec..6e91329 100755
--- a/VEX/priv/guest_mips_toIR.c
+++ b/VEX/priv/guest_mips_toIR.c
@@ -20241,6 +20241,7 @@ static UInt disInstr_MIPS_WRK_00(UInt cins, const VexArchInfo* archinfo,
 #elif defined(__mips__) && ((defined(__mips_isa_rev) && __mips_isa_rev >= 6))
 
       case 0x08: { /* BEQZALC, BEQC, BOVC */
+         IRTemp t1, t2, t3, t4;
          if (rs == 0) { /* BEQZALC */
             DIP("beqzalc r%u, %u", rt, imm);
 
diff --git a/coregrind/m_debuglog.c b/coregrind/m_debuglog.c
index 456a711..289f275 100644
--- a/coregrind/m_debuglog.c
+++ b/coregrind/m_debuglog.c
@@ -452,7 +452,13 @@ static UInt local_sys_write_stderr ( const HChar* buf, Int n )
    __asm__ volatile (
       "syscall            \n\t"
       "addiu   $4, $0, -1 \n\t"
+      #if ((defined(__mips_isa_rev) && __mips_isa_rev >= 6))
+      "selnez  $4, $4, $7 \n\t"
+      "seleqz  $2, $2, $7 \n\t"
+      "or      $2, $2, $4 \n\t"
+      #else
       "movn    $2, $4, $7 \n\t"
+      #endif
      : "+d" (v0), "+d" (a0), "+d" (a1), "+d" (a2)
      :
      : "$1", "$3", "$7", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
-- 
2.7.4