Message ID | 20211024161619.325903-4-f4bug@amsat.org |
---|---|
State | Accepted, archived |
Headers | show |
Series | target/alpha,arm,ppc: More uses of tcg_constant() | expand |
On 10/24/21 9:16 AM, Philippe Mathieu-Daudé wrote: > Avoid using a TCG temporary by moving the compared values > to the constant pool. > > Signed-off-by: Philippe Mathieu-Daudé<f4bug@amsat.org> > --- > target/ppc/translate.c | 11 ++++------- > 1 file changed, 4 insertions(+), 7 deletions(-) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
On Sun, Oct 24, 2021 at 06:16:18PM +0200, Philippe Mathieu-Daudé wrote: > Avoid using a TCG temporary by moving the compared values > to the constant pool. > > Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> > --- > target/ppc/translate.c | 11 ++++------- > 1 file changed, 4 insertions(+), 7 deletions(-) > > diff --git a/target/ppc/translate.c b/target/ppc/translate.c > index 518337bcb7f..507f6699f47 100644 > --- a/target/ppc/translate.c > +++ b/target/ppc/translate.c > @@ -1430,23 +1430,20 @@ static opc_handler_t invalid_handler = { > static inline void gen_op_cmp(TCGv arg0, TCGv arg1, int s, int crf) > { > TCGv t0 = tcg_temp_new(); > - TCGv t1 = tcg_temp_new(); > TCGv_i32 t = tcg_temp_new_i32(); > > - tcg_gen_movi_tl(t0, CRF_EQ); > - tcg_gen_movi_tl(t1, CRF_LT); > tcg_gen_movcond_tl((s ? TCG_COND_LT : TCG_COND_LTU), > - t0, arg0, arg1, t1, t0); > - tcg_gen_movi_tl(t1, CRF_GT); > + t0, arg0, arg1, > + tcg_constant_tl(CRF_LT), tcg_constant_tl(CRF_EQ)); > tcg_gen_movcond_tl((s ? TCG_COND_GT : TCG_COND_GTU), > - t0, arg0, arg1, t1, t0); > + t0, arg0, arg1, > + tcg_constant_tl(CRF_GT), t0); > > tcg_gen_trunc_tl_i32(t, t0); > tcg_gen_trunc_tl_i32(cpu_crf[crf], cpu_so); > tcg_gen_or_i32(cpu_crf[crf], cpu_crf[crf], t); > > tcg_temp_free(t0); > - tcg_temp_free(t1); > tcg_temp_free_i32(t); > } >
diff --git a/target/ppc/translate.c b/target/ppc/translate.c index 518337bcb7f..507f6699f47 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -1430,23 +1430,20 @@ static opc_handler_t invalid_handler = { static inline void gen_op_cmp(TCGv arg0, TCGv arg1, int s, int crf) { TCGv t0 = tcg_temp_new(); - TCGv t1 = tcg_temp_new(); TCGv_i32 t = tcg_temp_new_i32(); - tcg_gen_movi_tl(t0, CRF_EQ); - tcg_gen_movi_tl(t1, CRF_LT); tcg_gen_movcond_tl((s ? TCG_COND_LT : TCG_COND_LTU), - t0, arg0, arg1, t1, t0); - tcg_gen_movi_tl(t1, CRF_GT); + t0, arg0, arg1, + tcg_constant_tl(CRF_LT), tcg_constant_tl(CRF_EQ)); tcg_gen_movcond_tl((s ? TCG_COND_GT : TCG_COND_GTU), - t0, arg0, arg1, t1, t0); + t0, arg0, arg1, + tcg_constant_tl(CRF_GT), t0); tcg_gen_trunc_tl_i32(t, t0); tcg_gen_trunc_tl_i32(cpu_crf[crf], cpu_so); tcg_gen_or_i32(cpu_crf[crf], cpu_crf[crf], t); tcg_temp_free(t0); - tcg_temp_free(t1); tcg_temp_free_i32(t); }
Avoid using a TCG temporary by moving the compared values to the constant pool. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> --- target/ppc/translate.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-)