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Eliminate useless ir_bitset_empty() checks

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Dmitry Stogov 2022-08-11 20:42:03 +03:00
parent ca109d3fc9
commit 253b99ae74
2 changed files with 6 additions and 9 deletions
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3
ir_cfg.c
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@ -542,8 +542,7 @@ int ir_schedule_blocks(ir_ctx *ctx)
ir_bitset_incl(blocks, b); ir_bitset_incl(blocks, b);
} }
while (!ir_bitset_empty(blocks, len)) { while ((b = ir_bitset_pop_first(blocks, len)) != (uint32_t)-1) {
b = ir_bitset_pop_first(blocks, len);
bb = &ctx->cfg_blocks[b]; bb = &ctx->cfg_blocks[b];
do { do {
if (bb->predecessors_count == 2) { if (bb->predecessors_count == 2) {

12
ir_ra.c
View File

@ -561,9 +561,8 @@ int ir_compute_live_ranges(ir_ctx *ctx)
ir_bitset_clear(queue, bb_set_len); ir_bitset_clear(queue, bb_set_len);
} }
ir_bitset_incl(loops, b); ir_bitset_incl(loops, b);
ir_bitset_incl(queue, b); child = b;
do { do {
child = ir_bitset_pop_first(queue, bb_set_len);
child_bb = &ctx->cfg_blocks[child]; child_bb = &ctx->cfg_blocks[child];
IR_BITSET_FOREACH(live, len, i) { IR_BITSET_FOREACH(live, len, i) {
@ -583,7 +582,7 @@ int ir_compute_live_ranges(ir_ctx *ctx)
} }
child = child_bb->dom_next_child; child = child_bb->dom_next_child;
} }
} while (!ir_bitset_empty(queue, bb_set_len)); } while ((child = ir_bitset_pop_first(queue, bb_set_len)) >= 0);
} }
/* b.liveIn = live */ /* b.liveIn = live */
@ -1142,11 +1141,10 @@ int ir_gen_dessa_moves(ir_ctx *ctx, int b, emit_copy_t emit_copy)
} }
} IR_BITSET_FOREACH_END(); } IR_BITSET_FOREACH_END();
while (!ir_bitset_empty(todo, len)) { while ((j = ir_bitset_pop_first(todo, len)) >= 0) {
uint32_t a, b, c; uint32_t a, b, c;
while (!ir_bitset_empty(ready, len)) { while ((b = ir_bitset_pop_first(ready, len)) != (uint32_t)-1) {
b = ir_bitset_pop_first(ready, len);
a = pred[b]; a = pred[b];
c = loc[a]; c = loc[a];
emit_copy(ctx, ctx->ir_base[b].type, c, b); emit_copy(ctx, ctx->ir_base[b].type, c, b);
@ -1155,7 +1153,7 @@ int ir_gen_dessa_moves(ir_ctx *ctx, int b, emit_copy_t emit_copy)
ir_bitset_incl(ready, a); ir_bitset_incl(ready, a);
} }
} }
b = ir_bitset_pop_first(todo, len); b = j;
if (b != loc[pred[b]]) { if (b != loc[pred[b]]) {
emit_copy(ctx, ctx->ir_base[b].type, b, 0); emit_copy(ctx, ctx->ir_base[b].type, b, 0);
loc[b] = 0; loc[b] = 0;