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nv50/ir/ra: Fix traversal before the beginning of the active list in buildRIG.

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Francisco Jerez 2012-04-30 15:19:40 +02:00 • committed by Christoph Bumiller
parent fe17d8a7c0
commit ca04e71024
1 changed files with 5 additions and 6 deletions
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11
src/gallium/drivers/nv50/codegen/nv50_ir_ra.cpp
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@ -1061,16 +1061,15 @@ GCRA::buildRIG(ArrayList& insns)
RIG_Node *cur = values.front();
for (std::list<RIG_Node *>::iterator it = active.begin();
it != active.end();
++it) {
it != active.end();) {
RIG_Node *node = *it;
if (node->livei.end() <= cur->livei.begin()) {
it = active.erase(it);
--it;
} else
if (node->f == cur->f && node->livei.overlaps(cur->livei)) {
cur->addInterference(node);
} else {
if (node->f == cur->f && node->livei.overlaps(cur->livei))
cur->addInterference(node);
++it;
}
}
values.pop_front();