target/mips: Use tcg_constant_i32() in gen_msa_elm_df()

Data Format is a 2-bit constant value.
Avoid using a TCG temporary by moving it to the constant pool.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211003175743.3738710-3-f4bug@amsat.org>

diff --git a/target/mips/tcg/msa_translate.c b/target/mips/tcg/msa_translate.c
index ee6424126f7a380f2e57d4b9f373df120ca7fd31..20036ae49684bca14baa1873003dbbd8556f6c9b 100644 (file)
--- a/target/mips/tcg/msa_translate.c
+++ b/target/mips/tcg/msa_translate.c
@@ -1650,7 +1650,7 @@ static void gen_msa_elm_df(DisasContext *ctx, uint32_t df, uint32_t n)
     TCGv_i32 tws = tcg_const_i32(ws);
     TCGv_i32 twd = tcg_const_i32(wd);
     TCGv_i32 tn  = tcg_const_i32(n);
-    TCGv_i32 tdf = tcg_const_i32(df);
+    TCGv_i32 tdf = tcg_constant_i32(df);
 
     switch (MASK_MSA_ELM(ctx->opcode)) {
     case OPC_SLDI_df:
@@ -1748,7 +1748,6 @@ static void gen_msa_elm_df(DisasContext *ctx, uint32_t df, uint32_t n)
     tcg_temp_free_i32(twd);
     tcg_temp_free_i32(tws);
     tcg_temp_free_i32(tn);
-    tcg_temp_free_i32(tdf);
 }
 
 static void gen_msa_elm(DisasContext *ctx)