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target-microblaze: Simplify address computation using tcg_gen_addi_i32()

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Simplify address computation using tcg_gen_addi_i32().
tcg_gen_addi_i32() already optimizes the case when the
immediate is zero.

No functional change.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
This commit is contained in:
Edgar E. Iglesias 2018-05-05 14:27:23 +02:00
parent 25ec2fdd7b
commit f7a66e3a86
1 changed files with 1 additions and 6 deletions
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7
target/microblaze/translate.c
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@ -899,12 +899,7 @@ static inline void compute_ldst_addr(DisasContext *dc, bool ea, TCGv t)
/* Immediate. */
t32 = tcg_temp_new_i32();
if (!extimm) {
if (dc->imm == 0) {
tcg_gen_mov_i32(t32, cpu_R[dc->ra]);
} else {
tcg_gen_movi_i32(t32, (int32_t)((int16_t)dc->imm));
tcg_gen_add_i32(t32, cpu_R[dc->ra], t32);
}
tcg_gen_addi_i32(t32, cpu_R[dc->ra], (int16_t)dc->imm);
} else {
tcg_gen_add_i32(t32, cpu_R[dc->ra], *(dec_alu_op_b(dc)));
}