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sh2 drc: fix i386 regression

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This commit is contained in:
kub 2019-10-05 11:17:49 +02:00
parent a0f5ba4067
commit c3ebe082d3
1 changed files with 9 additions and 5 deletions
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14
cpu/sh2/compiler.c
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@ -1682,6 +1682,7 @@ static void rcache_clean_vreg(int x)
if (guest_regs[r].flags & (GRF_STATIC|GRF_PINNED)) {
if (guest_regs[r].vreg != guest_regs[r].sreg &&
!cache_regs[guest_regs[r].sreg].locked &&
(~rcache_regs_discard & (1 << r)) &&
!(rns & cache_regs[guest_regs[r].sreg].gregs)) {
// statically mapped reg not in its sreg. move back to sreg
rcache_evict_vreg(guest_regs[r].sreg);
@ -1820,6 +1821,8 @@ static int rcache_allocate_nontemp(void)
static int rcache_allocate_temp(void)
{
int x = rcache_allocate(-1, 1);
if (x < 0)
x = rcache_allocate(0, 0);
return x;
}
@ -3404,16 +3407,16 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
// regs needed in the next few instructions
if (v <= 4)
soon = late;
} else {
// upcoming rcache_flush, start writing back unused dirty stuff
rcache_set_usage_discard(write & ~(late|soon|opd[0].source));
rcache_clean_masked(rcache_dirty_mask() & ~(write|opd[0].dest));
} else
break;
}
}
rcache_set_usage_now(opd[0].source); // current insn
rcache_set_usage_soon(soon); // insns 1-4
rcache_set_usage_late(late & ~soon); // insns 5-9
rcache_set_usage_discard(write & ~(late|soon|opd[0].source));
if (v <= 9)
// upcoming rcache_flush, start writing back unused dirty stuff
rcache_clean_masked(rcache_dirty_mask() & ~(write|opd[0].dest));
switch (opd->op)
{
@ -3826,6 +3829,7 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
emith_tpop_carry(sr, 0);
emith_adcf_r_r_r(tmp2, tmp, tmp);
emith_tpush_carry(sr, 0); // keep Q1 in T for now
rcache_free(tmp);
tmp4 = rcache_get_tmp();
emith_and_r_r_imm(tmp4, sr, M);
emith_eor_r_r_lsr(sr, tmp4, M_SHIFT - Q_SHIFT); // Q ^= M