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tcg: Add preferred_reg argument to temp_sync

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Pass this through to tcg_reg_alloc.

Backports commit 98b4e186c1ccb8f1868c61a33a3be8c2b82654f3 from qemu
This commit is contained in:
Richard Henderson 2019-01-05 06:50:20 -05:00 committed by Lioncash
parent 96b6640f3b
commit c3aa567b03
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 8 additions and 8 deletions
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16
qemu/tcg/tcg.c
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@ -2401,8 +2401,8 @@ static inline void temp_dead(TCGContext *s, TCGTemp *ts)
registers needs to be allocated to store a constant. If 'free_or_dead'
is non-zero, subsequently release the temporary; if it is positive, the
temp is dead; if it is negative, the temp is free. */
static void temp_sync(TCGContext *s, TCGTemp *ts,
TCGRegSet allocated_regs, int free_or_dead)
static void temp_sync(TCGContext *s, TCGTemp *ts, TCGRegSet allocated_regs,
TCGRegSet preferred_regs, int free_or_dead)
{
if (ts->fixed_reg) {
return;
@ -2422,7 +2422,7 @@ static void temp_sync(TCGContext *s, TCGTemp *ts,
break;
}
temp_load(s, ts, s->tcg_target_available_regs[ts->type],
allocated_regs, 0);
allocated_regs, preferred_regs);
/* fallthrough */
case TEMP_VAL_REG:
@ -2449,7 +2449,7 @@ static void tcg_reg_free(TCGContext *s, TCGReg reg, TCGRegSet allocated_regs)
{
TCGTemp *ts = s->reg_to_temp[reg];
if (ts != NULL) {
temp_sync(s, ts, allocated_regs, -1);
temp_sync(s, ts, allocated_regs, 0, -1);
}
}
@ -2629,7 +2629,7 @@ static void tcg_reg_alloc_do_movi(TCGContext *s, TCGTemp *ots,
ots->val = val;
ots->mem_coherent = 0;
if (NEED_SYNC_ARG(0)) {
temp_sync(s, ots, s->reserved_regs, IS_DEAD_ARG(0));
temp_sync(s, ots, s->reserved_regs, 0, IS_DEAD_ARG(0));
} else if (IS_DEAD_ARG(0)) {
temp_dead(s, ots);
}
@ -2712,7 +2712,7 @@ static void tcg_reg_alloc_mov(TCGContext *s, const TCGOp *op)
ots->mem_coherent = 0;
s->reg_to_temp[ots->reg] = ots;
if (NEED_SYNC_ARG(0)) {
temp_sync(s, ots, allocated_regs, 0);
temp_sync(s, ots, allocated_regs, 0, 0);
}
}
}
@ -2882,7 +2882,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
tcg_out_mov(s, ts->type, ts->reg, reg);
}
if (NEED_SYNC_ARG(i)) {
temp_sync(s, ts, o_allocated_regs, IS_DEAD_ARG(i));
temp_sync(s, ts, o_allocated_regs, 0, IS_DEAD_ARG(i));
} else if (IS_DEAD_ARG(i)) {
temp_dead(s, ts);
}
@ -3016,7 +3016,7 @@ static void tcg_reg_alloc_call(TCGContext *s, TCGOp *op)
ts->mem_coherent = 0;
s->reg_to_temp[reg] = ts;
if (NEED_SYNC_ARG(i)) {
temp_sync(s, ts, allocated_regs, IS_DEAD_ARG(i));
temp_sync(s, ts, allocated_regs, 0, IS_DEAD_ARG(i));
} else if (IS_DEAD_ARG(i)) {
temp_dead(s, ts);
}