target/arm: Use tcg_constant for TT, SAT, SMMLA

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20220426163043.100432-32-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

target/arm/translate.c

@@ -6596,8 +6596,8 @@ static bool trans_TT(DisasContext *s, arg_TT *a)
     }
 
     addr = load_reg(s, a->rn);
-    tmp = tcg_const_i32((a->A << 1) | a->T);
-    gen_helper_v7m_tt(tmp, cpu_env, addr, tmp);
+    tmp = tcg_temp_new_i32();
+    gen_helper_v7m_tt(tmp, cpu_env, addr, tcg_constant_i32((a->A << 1) | a->T));
     tcg_temp_free_i32(addr);
     store_reg(s, a->rd, tmp);
     return true;
@@ -7564,7 +7564,7 @@ static bool trans_PKH(DisasContext *s, arg_PKH *a)
 static bool op_sat(DisasContext *s, arg_sat *a,
                    void (*gen)(TCGv_i32, TCGv_env, TCGv_i32, TCGv_i32))
 {
-    TCGv_i32 tmp, satimm;
+    TCGv_i32 tmp;
     int shift = a->imm;
 
     if (!ENABLE_ARCH_6) {
@@ -7578,9 +7578,7 @@ static bool op_sat(DisasContext *s, arg_sat *a,
         tcg_gen_shli_i32(tmp, tmp, shift);
     }
 
-    satimm = tcg_const_i32(a->satimm);
-    gen(tmp, cpu_env, tmp, satimm);
-    tcg_temp_free_i32(satimm);
+    gen(tmp, cpu_env, tmp, tcg_constant_i32(a->satimm));
 
     store_reg(s, a->rd, tmp);
     return true;
@@ -7915,9 +7913,7 @@ static bool op_smmla(DisasContext *s, arg_rrrr *a, bool round, bool sub)
              * a non-zero multiplicand lowpart, and the correct result
              * lowpart for rounding.
              */
-            TCGv_i32 zero = tcg_const_i32(0);
-            tcg_gen_sub2_i32(t2, t1, zero, t3, t2, t1);
-            tcg_temp_free_i32(zero);
+            tcg_gen_sub2_i32(t2, t1, tcg_constant_i32(0), t3, t2, t1);
         } else {
             tcg_gen_add_i32(t1, t1, t3);
         }