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[TIR] Fix trivial index map [] -> [0] #18154

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Merged
tqchen merged 1 commit into from
Jul 24, 2025
Merged

[TIR] Fix trivial index map [] -> [0] #18154

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2 changes: 1 addition & 1 deletion src/tir/ir/index_map.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -218,7 +218,7 @@ Array<Range> IndexMapNode::MapRanges(const Array<Range>& ranges, arith::Analyzer
}
}
auto output_dtype = [&]() {
int max_bits = 0;
int max_bits = ranges.empty() ? 32 : 0;
for (const auto& range : ranges) {
max_bits = std::max(max_bits, range->extent.dtype().bits());
}
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4 changes: 4 additions & 0 deletions src/tir/schedule/primitive/layout_transformation.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -1464,6 +1464,10 @@ void TransformBlockLayout(ScheduleState self, const StmtSRef& block_sref,
}

// Step 6: Do the actual replacement
if (scope_sref->StmtAs<BlockNode>()) {
ICHECK(new_loop_vars.empty()) << "Invalid block to loop replacement due to layout transform "
<< index_map;
}
self->Replace(scope_sref, body, {{block, new_block}});
}

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