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tcg: Change temp_dead argument to TCGTemp 

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2013-09-18 15:29:18 -07:00
parent f8b2f20234
commit f8bf00f102
1 changed files with 23 additions and 25 deletions
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48
tcg/tcg.c
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@ -1708,20 +1708,16 @@ static TCGReg tcg_reg_alloc(TCGContext *s, TCGRegSet reg1, TCGRegSet reg2)
}
/* mark a temporary as dead. */
static inline void temp_dead(TCGContext *s, int temp)
static inline void temp_dead(TCGContext *s, TCGTemp *ts)
{
TCGTemp *ts = &s->temps[temp];
if (!ts->fixed_reg) {
if (ts->val_type == TEMP_VAL_REG) {
s->reg_to_temp[ts->reg] = NULL;
}
if (temp < s->nb_globals || ts->temp_local) {
ts->val_type = TEMP_VAL_MEM;
} else {
ts->val_type = TEMP_VAL_DEAD;
}
if (ts->fixed_reg) {
return;
}
if (ts->val_type == TEMP_VAL_REG) {
s->reg_to_temp[ts->reg] = NULL;
}
ts->val_type = (temp_idx(s, ts) < s->nb_globals || ts->temp_local
? TEMP_VAL_MEM : TEMP_VAL_DEAD);
}
/* sync a temporary to memory. 'allocated_regs' is used in case a
@ -1756,13 +1752,15 @@ static inline void temp_sync(TCGContext *s, int temp, TCGRegSet allocated_regs)
temporary registers needs to be allocated to store a constant. */
static inline void temp_save(TCGContext *s, int temp, TCGRegSet allocated_regs)
{
TCGTemp *ts = &s->temps[temp];
#ifdef USE_LIVENESS_ANALYSIS
/* The liveness analysis already ensures that globals are back
in memory. Keep an assert for safety. */
assert(s->temps[temp].val_type == TEMP_VAL_MEM || s->temps[temp].fixed_reg);
tcg_debug_assert(ts->val_type == TEMP_VAL_MEM || ts->fixed_reg);
#else
temp_sync(s, temp, allocated_regs);
temp_dead(s, temp);
temp_dead(s, ts);
#endif
}
@ -1812,7 +1810,7 @@ static void tcg_reg_alloc_bb_end(TCGContext *s, TCGRegSet allocated_regs)
Keep an assert for safety. */
assert(ts->val_type == TEMP_VAL_DEAD);
#else
temp_dead(s, i);
temp_dead(s, ts);
#endif
}
}
@ -1848,7 +1846,7 @@ static void tcg_reg_alloc_movi(TCGContext *s, const TCGArg *args,
temp_sync(s, args[0], s->reserved_regs);
}
if (IS_DEAD_ARG(0)) {
temp_dead(s, args[0]);
temp_dead(s, ots);
}
}
@ -1898,9 +1896,9 @@ static void tcg_reg_alloc_mov(TCGContext *s, const TCGOpDef *def,
}
tcg_out_st(s, otype, ts->reg, ots->mem_base->reg, ots->mem_offset);
if (IS_DEAD_ARG(1)) {
temp_dead(s, args[1]);
temp_dead(s, ts);
}
temp_dead(s, args[0]);
temp_dead(s, ots);
} else if (ts->val_type == TEMP_VAL_CONST) {
/* propagate constant */
if (ots->val_type == TEMP_VAL_REG) {
@ -1909,7 +1907,7 @@ static void tcg_reg_alloc_mov(TCGContext *s, const TCGOpDef *def,
ots->val_type = TEMP_VAL_CONST;
ots->val = ts->val;
if (IS_DEAD_ARG(1)) {
temp_dead(s, args[1]);
temp_dead(s, ts);
}
} else {
/* The code in the first if block should have moved the
@ -1921,7 +1919,7 @@ static void tcg_reg_alloc_mov(TCGContext *s, const TCGOpDef *def,
s->reg_to_temp[ots->reg] = NULL;
}
ots->reg = ts->reg;
temp_dead(s, args[1]);
temp_dead(s, ts);
} else {
if (ots->val_type != TEMP_VAL_REG) {
/* When allocating a new register, make sure to not spill the
@ -2038,7 +2036,7 @@ static void tcg_reg_alloc_op(TCGContext *s,
/* mark dead temporaries and free the associated registers */
for (i = nb_oargs; i < nb_oargs + nb_iargs; i++) {
if (IS_DEAD_ARG(i)) {
temp_dead(s, args[i]);
temp_dead(s, &s->temps[args[i]]);
}
}
@ -2109,7 +2107,7 @@ static void tcg_reg_alloc_op(TCGContext *s,
tcg_reg_sync(s, reg);
}
if (IS_DEAD_ARG(i)) {
temp_dead(s, args[i]);
temp_dead(s, ts);
}
}
}
@ -2211,7 +2209,7 @@ static void tcg_reg_alloc_call(TCGContext *s, int nb_oargs, int nb_iargs,
/* mark dead temporaries and free the associated registers */
for(i = nb_oargs; i < nb_iargs + nb_oargs; i++) {
if (IS_DEAD_ARG(i)) {
temp_dead(s, args[i]);
temp_dead(s, &s->temps[args[i]]);
}
}
@ -2257,7 +2255,7 @@ static void tcg_reg_alloc_call(TCGContext *s, int nb_oargs, int nb_iargs,
tcg_reg_sync(s, reg);
}
if (IS_DEAD_ARG(i)) {
temp_dead(s, args[i]);
temp_dead(s, ts);
}
}
}
@ -2387,7 +2385,7 @@ int tcg_gen_code(TCGContext *s, tcg_insn_unit *gen_code_buf)
}
break;
case INDEX_op_discard:
temp_dead(s, args[0]);
temp_dead(s, &s->temps[args[0]]);
break;
case INDEX_op_set_label:
tcg_reg_alloc_bb_end(s, s->reserved_regs);