target/nios2: Split out helpers for gen_rr_shift

Do as little work as possible within the macro.
Split out helper functions and pass in arguments instead.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-04-22 09:32:26 -07:00
parent 3099c41bee
commit 541cb627da

View File

@ -690,23 +690,28 @@ gen_rr_mul_high(mulxss, muls2)
gen_rr_mul_high(mulxuu, mulu2)
gen_rr_mul_high(mulxsu, mulsu2)
#define gen_r_shift_s(fname, insn) \
static void (fname)(DisasContext *dc, uint32_t code, uint32_t flags) \
{ \
R_TYPE(instr, (code)); \
if (likely(instr.c != R_ZERO)) { \
TCGv t0 = tcg_temp_new(); \
tcg_gen_andi_tl(t0, load_gpr((dc), instr.b), 31); \
tcg_gen_##insn(cpu_R[instr.c], load_gpr((dc), instr.a), t0); \
tcg_temp_free(t0); \
} \
static void do_rr_shift(DisasContext *dc, uint32_t insn, GenFn3 *fn)
{
R_TYPE(instr, insn);
if (likely(instr.c != R_ZERO)) {
TCGv sh = tcg_temp_new();
tcg_gen_andi_tl(sh, load_gpr(dc, instr.b), 31);
fn(cpu_R[instr.c], load_gpr(dc, instr.a), sh);
tcg_temp_free(sh);
}
}
gen_r_shift_s(sra, sar_tl)
gen_r_shift_s(srl, shr_tl)
gen_r_shift_s(sll, shl_tl)
gen_r_shift_s(rol, rotl_tl)
gen_r_shift_s(ror, rotr_tl)
#define gen_rr_shift(fname, insn) \
static void (fname)(DisasContext *dc, uint32_t code, uint32_t flags) \
{ do_rr_shift(dc, code, tcg_gen_##insn##_tl); }
gen_rr_shift(sra, sar)
gen_rr_shift(srl, shr)
gen_rr_shift(sll, shl)
gen_rr_shift(rol, rotl)
gen_rr_shift(ror, rotr)
static void divs(DisasContext *dc, uint32_t code, uint32_t flags)
{