diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index c3c6cb9589..0258c1be16 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -5068,19 +5068,15 @@ static void gen_mtspr(DisasContext *ctx)
 static void gen_setb(DisasContext *ctx)
 {
     TCGv_i32 t0 = tcg_temp_new_i32();
-    TCGv_i32 t8 = tcg_temp_new_i32();
-    TCGv_i32 tm1 = tcg_temp_new_i32();
+    TCGv_i32 t8 = tcg_constant_i32(8);
+    TCGv_i32 tm1 = tcg_constant_i32(-1);
     int crf = crfS(ctx->opcode);
 
     tcg_gen_setcondi_i32(TCG_COND_GEU, t0, cpu_crf[crf], 4);
-    tcg_gen_movi_i32(t8, 8);
-    tcg_gen_movi_i32(tm1, -1);
     tcg_gen_movcond_i32(TCG_COND_GEU, t0, cpu_crf[crf], t8, tm1, t0);
     tcg_gen_ext_i32_tl(cpu_gpr[rD(ctx->opcode)], t0);
 
     tcg_temp_free_i32(t0);
-    tcg_temp_free_i32(t8);
-    tcg_temp_free_i32(tm1);
 }
 #endif