From: Richard Henderson <richard.henderson@linaro.org>
Date: Sat, 8 Apr 2023 07:05:47 +0000 (-0700)
Subject: target/ppc: Fix temp usage in gen_op_arith_modw
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a253231fbede6e69bf287afd90f67347a7383aab;p=qemu.git

target/ppc: Fix temp usage in gen_op_arith_modw

Fix a crash writing to 't3', which is now a constant.
Instead, write the result of the remu to 't0'.

Fixes: 7058ff5231a ("target/ppc: Avoid tcg_const_* in translate.c")
Reported-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
[ clg: amend commit log s/t1/t0/ ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---

diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 9d05357d03..f603f1a939 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -1807,8 +1807,8 @@ static inline void gen_op_arith_modw(DisasContext *ctx, TCGv ret, TCGv arg1,
         TCGv_i32 t2 = tcg_constant_i32(1);
         TCGv_i32 t3 = tcg_constant_i32(0);
         tcg_gen_movcond_i32(TCG_COND_EQ, t1, t1, t3, t2, t1);
-        tcg_gen_remu_i32(t3, t0, t1);
-        tcg_gen_extu_i32_tl(ret, t3);
+        tcg_gen_remu_i32(t0, t0, t1);
+        tcg_gen_extu_i32_tl(ret, t0);
     }
 }