From 9ae958e4d7504f87c2ecd5915d8c3ede7007f2e2 Mon Sep 17 00:00:00 2001
From: Richard Henderson <richard.henderson@linaro.org>
Date: Sun, 27 Nov 2022 01:07:25 -0800
Subject: [PATCH] tcg/riscv: Introduce OPC_NOP
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Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/riscv/tcg-target.c.inc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc
index 136fe54d4b..82ca86431e 100644
--- a/tcg/riscv/tcg-target.c.inc
+++ b/tcg/riscv/tcg-target.c.inc
@@ -267,6 +267,7 @@ typedef enum {
 #endif
 
     OPC_FENCE = 0x0000000f,
+    OPC_NOP   = OPC_ADDI,   /* nop = addi r0,r0,0 */
 } RISCVInsn;
 
 /*
@@ -403,7 +404,7 @@ static void tcg_out_nop_fill(tcg_insn_unit *p, int count)
 {
     int i;
     for (i = 0; i < count; ++i) {
-        p[i] = encode_i(OPC_ADDI, TCG_REG_ZERO, TCG_REG_ZERO, 0);
+        p[i] = OPC_NOP;
     }
 }