tcg: Move sorted_args into TCGArgConstraint.sort_index
This uses an existing hole in the TCGArgConstraint structure and will be convenient for keeping the data in one place. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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9be0d08019
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@ -985,6 +985,7 @@ void tcg_dump_op_count(void);
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typedef struct TCGArgConstraint {
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typedef struct TCGArgConstraint {
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uint16_t ct;
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uint16_t ct;
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uint8_t alias_index;
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uint8_t alias_index;
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uint8_t sort_index;
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TCGRegSet regs;
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TCGRegSet regs;
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} TCGArgConstraint;
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} TCGArgConstraint;
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@ -1015,7 +1016,6 @@ typedef struct TCGOpDef {
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uint8_t nb_oargs, nb_iargs, nb_cargs, nb_args;
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uint8_t nb_oargs, nb_iargs, nb_cargs, nb_args;
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uint8_t flags;
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uint8_t flags;
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TCGArgConstraint *args_ct;
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TCGArgConstraint *args_ct;
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int *sorted_args;
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#if defined(CONFIG_DEBUG_TCG)
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#if defined(CONFIG_DEBUG_TCG)
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int used;
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int used;
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#endif
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#endif
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31
tcg/tcg.c
31
tcg/tcg.c
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@ -944,7 +944,6 @@ void tcg_context_init(TCGContext *s)
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int op, total_args, n, i;
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int op, total_args, n, i;
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TCGOpDef *def;
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TCGOpDef *def;
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TCGArgConstraint *args_ct;
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TCGArgConstraint *args_ct;
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int *sorted_args;
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TCGTemp *ts;
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TCGTemp *ts;
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memset(s, 0, sizeof(*s));
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memset(s, 0, sizeof(*s));
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@ -960,14 +959,11 @@ void tcg_context_init(TCGContext *s)
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}
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}
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args_ct = g_malloc(sizeof(TCGArgConstraint) * total_args);
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args_ct = g_malloc(sizeof(TCGArgConstraint) * total_args);
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sorted_args = g_malloc(sizeof(int) * total_args);
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for(op = 0; op < NB_OPS; op++) {
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for(op = 0; op < NB_OPS; op++) {
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def = &tcg_op_defs[op];
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def = &tcg_op_defs[op];
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def->args_ct = args_ct;
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def->args_ct = args_ct;
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def->sorted_args = sorted_args;
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n = def->nb_iargs + def->nb_oargs;
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n = def->nb_iargs + def->nb_oargs;
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sorted_args += n;
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args_ct += n;
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args_ct += n;
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}
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}
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@ -2220,20 +2216,23 @@ static int get_constraint_priority(const TCGOpDef *def, int k)
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/* sort from highest priority to lowest */
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/* sort from highest priority to lowest */
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static void sort_constraints(TCGOpDef *def, int start, int n)
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static void sort_constraints(TCGOpDef *def, int start, int n)
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{
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{
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int i, j, p1, p2, tmp;
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int i, j;
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TCGArgConstraint *a = def->args_ct;
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for(i = 0; i < n; i++)
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for (i = 0; i < n; i++) {
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def->sorted_args[start + i] = start + i;
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a[start + i].sort_index = start + i;
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if (n <= 1)
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}
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if (n <= 1) {
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return;
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return;
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}
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for (i = 0; i < n - 1; i++) {
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for (i = 0; i < n - 1; i++) {
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for (j = i + 1; j < n; j++) {
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for (j = i + 1; j < n; j++) {
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p1 = get_constraint_priority(def, def->sorted_args[start + i]);
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int p1 = get_constraint_priority(def, a[start + i].sort_index);
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p2 = get_constraint_priority(def, def->sorted_args[start + j]);
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int p2 = get_constraint_priority(def, a[start + j].sort_index);
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if (p1 < p2) {
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if (p1 < p2) {
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tmp = def->sorted_args[start + i];
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int tmp = a[start + i].sort_index;
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def->sorted_args[start + i] = def->sorted_args[start + j];
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a[start + i].sort_index = a[start + j].sort_index;
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def->sorted_args[start + j] = tmp;
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a[start + j].sort_index = tmp;
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}
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}
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}
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}
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}
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}
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@ -3659,7 +3658,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
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for (k = 0; k < nb_iargs; k++) {
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for (k = 0; k < nb_iargs; k++) {
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TCGRegSet i_preferred_regs, o_preferred_regs;
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TCGRegSet i_preferred_regs, o_preferred_regs;
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i = def->sorted_args[nb_oargs + k];
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i = def->args_ct[nb_oargs + k].sort_index;
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arg = op->args[i];
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arg = op->args[i];
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arg_ct = &def->args_ct[i];
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arg_ct = &def->args_ct[i];
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ts = arg_temp(arg);
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ts = arg_temp(arg);
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@ -3695,7 +3694,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
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int k2, i2;
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int k2, i2;
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reg = ts->reg;
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reg = ts->reg;
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for (k2 = 0 ; k2 < k ; k2++) {
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for (k2 = 0 ; k2 < k ; k2++) {
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i2 = def->sorted_args[nb_oargs + k2];
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i2 = def->args_ct[nb_oargs + k2].sort_index;
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if ((def->args_ct[i2].ct & TCG_CT_IALIAS) &&
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if ((def->args_ct[i2].ct & TCG_CT_IALIAS) &&
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reg == new_args[i2]) {
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reg == new_args[i2]) {
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goto allocate_in_reg;
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goto allocate_in_reg;
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@ -3760,7 +3759,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
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/* satisfy the output constraints */
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/* satisfy the output constraints */
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for(k = 0; k < nb_oargs; k++) {
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for(k = 0; k < nb_oargs; k++) {
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i = def->sorted_args[k];
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i = def->args_ct[k].sort_index;
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arg = op->args[i];
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arg = op->args[i];
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arg_ct = &def->args_ct[i];
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arg_ct = &def->args_ct[i];
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ts = arg_temp(arg);
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ts = arg_temp(arg);
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