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target-alpha: Convert gen_cpys et al to source/sink 

Signed-off-by: Richard Henderson <rth@twiddle.net>
master
Richard Henderson 2014-03-19 13:32:36 -07:00
parent e8d8fef48f
commit ef3765cb95
1 changed files with 26 additions and 78 deletions
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104
target-alpha/translate.c
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@ -836,79 +836,22 @@ static inline void glue(gen_f, name)(DisasContext *ctx, \
IEEE_INTCVT(cvtqs)
IEEE_INTCVT(cvtqt)
static void gen_cpys_internal(int ra, int rb, int rc, int inv_a, uint64_t mask)
static void gen_cpy_mask(TCGv vc, TCGv va, TCGv vb, bool inv_a, uint64_t mask)
{
TCGv va, vb, vmask;
int za = 0, zb = 0;
TCGv vmask = tcg_const_i64(mask);
TCGv tmp = tcg_temp_new_i64();
if (unlikely(rc == 31)) {
return;
}
vmask = tcg_const_i64(mask);
TCGV_UNUSED_I64(va);
if (ra == 31) {
if (inv_a) {
va = vmask;
} else {
za = 1;
}
if (inv_a) {
tcg_gen_andc_i64(tmp, vmask, va);
} else {
va = tcg_temp_new_i64();
tcg_gen_mov_i64(va, cpu_fir[ra]);
if (inv_a) {
tcg_gen_andc_i64(va, vmask, va);
} else {
tcg_gen_and_i64(va, va, vmask);
}
tcg_gen_and_i64(tmp, va, vmask);
}
TCGV_UNUSED_I64(vb);
if (rb == 31) {
zb = 1;
} else {
vb = tcg_temp_new_i64();
tcg_gen_andc_i64(vb, cpu_fir[rb], vmask);
}
switch (za << 1 | zb) {
case 0 | 0:
tcg_gen_or_i64(cpu_fir[rc], va, vb);
break;
case 0 | 1:
tcg_gen_mov_i64(cpu_fir[rc], va);
break;
case 2 | 0:
tcg_gen_mov_i64(cpu_fir[rc], vb);
break;
case 2 | 1:
tcg_gen_movi_i64(cpu_fir[rc], 0);
break;
}
tcg_gen_andc_i64(vc, vb, vmask);
tcg_gen_or_i64(vc, vc, tmp);
tcg_temp_free(vmask);
if (ra != 31) {
tcg_temp_free(va);
}
if (rb != 31) {
tcg_temp_free(vb);
}
}
static inline void gen_fcpys(int ra, int rb, int rc)
{
gen_cpys_internal(ra, rb, rc, 0, 0x8000000000000000ULL);
}
static inline void gen_fcpysn(int ra, int rb, int rc)
{
gen_cpys_internal(ra, rb, rc, 1, 0x8000000000000000ULL);
}
static inline void gen_fcpyse(int ra, int rb, int rc)
{
gen_cpys_internal(ra, rb, rc, 0, 0xFFF0000000000000ULL);
tcg_temp_free(tmp);
}
static void gen_ieee_arith3(DisasContext *ctx,
@ -2238,26 +2181,31 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
/* CPYS */
if (rc == 31) {
/* Special case CPYS as FNOP. */
} else if (ra == rb) {
vc = dest_fpr(ctx, rc);
/* Special case CPYS as FMOV. */
if (ra == 31) {
tcg_gen_movi_i64(vc, 0);
} else {
va = load_fpr(ctx, ra);
tcg_gen_mov_i64(vc, va);
}
} else {
gen_fcpys(ra, rb, rc);
vc = dest_fpr(ctx, rc);
va = load_fpr(ctx, ra);
if (ra == rb) {
/* Special case CPYS as FMOV. */
tcg_gen_mov_i64(vc, va);
} else {
vb = load_fpr(ctx, rb);
gen_cpy_mask(vc, va, vb, 0, 0x8000000000000000ULL);
}
}
break;
case 0x021:
/* CPYSN */
gen_fcpysn(ra, rb, rc);
vc = dest_fpr(ctx, rc);
vb = load_fpr(ctx, rb);
va = load_fpr(ctx, ra);
gen_cpy_mask(vc, va, vb, 1, 0x8000000000000000ULL);
break;
case 0x022:
/* CPYSE */
gen_fcpyse(ra, rb, rc);
vc = dest_fpr(ctx, rc);
vb = load_fpr(ctx, rb);
va = load_fpr(ctx, ra);
gen_cpy_mask(vc, va, vb, 0, 0xFFF0000000000000ULL);
break;
case 0x024:
/* MT_FPCR */