danog/ir
1
0
Fork 0
mirror of https://github.com/danog/ir.git synced 2024-12-11 16:59:46 +01:00
Code Issues Packages Projects Releases Wiki Activity

Avoid check for PHI, PI, PARAM and VAR nodes in BB started by a node with a single use-def edge (control edge)

Browse Source
This commit is contained in:
Dmitry Stogov 2023-06-07 10:27:41 +03:00
parent 3f009c2d5a
commit 70da8bef54
1 changed files with 22 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
ir_gcm.c
View File

@ -316,28 +316,30 @@ int ir_gcm(ir_ctx *ctx)
use_list = &ctx->use_lists[ref]; use_list = &ctx->use_lists[ref];
n = use_list->count; n = use_list->count;
for (p = &ctx->use_edges[use_list->refs]; n > 0; n--, p++) { if (n > 1) {
ref = *p; for (p = &ctx->use_edges[use_list->refs]; n > 0; n--, p++) {
use_insn = &ctx->ir_base[ref]; ref = *p;
if (use_insn->op == IR_PHI || use_insn->op == IR_PI) { use_insn = &ctx->ir_base[ref];
bb->flags |= (use_insn->op == IR_PHI) ? IR_BB_HAS_PHI : IR_BB_HAS_PI; if (use_insn->op == IR_PHI || use_insn->op == IR_PI) {
ir_bitset_incl(visited, ref); bb->flags |= (use_insn->op == IR_PHI) ? IR_BB_HAS_PHI : IR_BB_HAS_PI;
if (EXPECTED(ctx->use_lists[ref].count != 0)) { ir_bitset_incl(visited, ref);
if (EXPECTED(ctx->use_lists[ref].count != 0)) {
_blocks[ref] = b; /* pin to block */
ir_list_push_unchecked(&queue_early, ref);
ir_list_push_unchecked(&queue_late, ref);
}
} else if (use_insn->op == IR_PARAM) {
bb->flags |= IR_BB_HAS_PARAM;
_blocks[ref] = b; /* pin to block */ _blocks[ref] = b; /* pin to block */
ir_list_push_unchecked(&queue_early, ref); ir_bitset_incl(visited, ref);
ir_list_push_unchecked(&queue_late, ref); if (EXPECTED(ctx->use_lists[ref].count != 0)) {
ir_list_push_unchecked(&queue_late, ref);
}
} else if (use_insn->op == IR_VAR) {
bb->flags |= IR_BB_HAS_VAR;
_blocks[ref] = b; /* pin to block */
ir_bitset_incl(visited, ref);
} }
} else if (use_insn->op == IR_PARAM) {
bb->flags |= IR_BB_HAS_PARAM;
_blocks[ref] = b; /* pin to block */
ir_bitset_incl(visited, ref);
if (EXPECTED(ctx->use_lists[ref].count != 0)) {
ir_list_push_unchecked(&queue_late, ref);
}
} else if (use_insn->op == IR_VAR) {
bb->flags |= IR_BB_HAS_VAR;
_blocks[ref] = b; /* pin to block */
ir_bitset_incl(visited, ref);
} }
} }
} }