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tcg: Add preferred_reg argument to temp_sync

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Pass this through to tcg_reg_alloc.

Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2018-11-27 15:35:04 -08:00
parent b722452aef
commit 98b4e186c1
1 changed files with 8 additions and 8 deletions
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16
tcg/tcg.c
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@ -2865,8 +2865,8 @@ static inline void temp_dead(TCGContext *s, TCGTemp *ts)
registers needs to be allocated to store a constant. If 'free_or_dead' 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 is non-zero, subsequently release the temporary; if it is positive, the
temp is dead; if it is negative, the temp is free. */ temp is dead; if it is negative, the temp is free. */
static void temp_sync(TCGContext *s, TCGTemp *ts, static void temp_sync(TCGContext *s, TCGTemp *ts, TCGRegSet allocated_regs,
TCGRegSet allocated_regs, int free_or_dead) TCGRegSet preferred_regs, int free_or_dead)
{ {
if (ts->fixed_reg) { if (ts->fixed_reg) {
return; return;
@ -2886,7 +2886,7 @@ static void temp_sync(TCGContext *s, TCGTemp *ts,
break; break;
} }
temp_load(s, ts, tcg_target_available_regs[ts->type], temp_load(s, ts, tcg_target_available_regs[ts->type],
allocated_regs, 0); allocated_regs, preferred_regs);
/* fallthrough */ /* fallthrough */
case TEMP_VAL_REG: case TEMP_VAL_REG:
@ -2913,7 +2913,7 @@ static void tcg_reg_free(TCGContext *s, TCGReg reg, TCGRegSet allocated_regs)
{ {
TCGTemp *ts = s->reg_to_temp[reg]; TCGTemp *ts = s->reg_to_temp[reg];
if (ts != NULL) { if (ts != NULL) {
temp_sync(s, ts, allocated_regs, -1); temp_sync(s, ts, allocated_regs, 0, -1);
} }
} }
@ -3093,7 +3093,7 @@ static void tcg_reg_alloc_do_movi(TCGContext *s, TCGTemp *ots,
ots->val = val; ots->val = val;
ots->mem_coherent = 0; ots->mem_coherent = 0;
if (NEED_SYNC_ARG(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)) { } else if (IS_DEAD_ARG(0)) {
temp_dead(s, ots); temp_dead(s, ots);
} }
@ -3176,7 +3176,7 @@ static void tcg_reg_alloc_mov(TCGContext *s, const TCGOp *op)
ots->mem_coherent = 0; ots->mem_coherent = 0;
s->reg_to_temp[ots->reg] = ots; s->reg_to_temp[ots->reg] = ots;
if (NEED_SYNC_ARG(0)) { if (NEED_SYNC_ARG(0)) {
temp_sync(s, ots, allocated_regs, 0); temp_sync(s, ots, allocated_regs, 0, 0);
} }
} }
} }
@ -3346,7 +3346,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
tcg_out_mov(s, ts->type, ts->reg, reg); tcg_out_mov(s, ts->type, ts->reg, reg);
} }
if (NEED_SYNC_ARG(i)) { 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)) { } else if (IS_DEAD_ARG(i)) {
temp_dead(s, ts); temp_dead(s, ts);
} }
@ -3480,7 +3480,7 @@ static void tcg_reg_alloc_call(TCGContext *s, TCGOp *op)
ts->mem_coherent = 0; ts->mem_coherent = 0;
s->reg_to_temp[reg] = ts; s->reg_to_temp[reg] = ts;
if (NEED_SYNC_ARG(i)) { 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)) { } else if (IS_DEAD_ARG(i)) {
temp_dead(s, ts); temp_dead(s, ts);
} }