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[mlir][linalg] fix indexOp folder to work in genericOp build with createOrFold #137427

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Merged
merged 4 commits into from
Apr 26, 2025
Merged

[mlir][linalg] fix indexOp folder to work in genericOp build with createOrFold #137427

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ba3bf3a
[mlir][linalg] fix indexOp folder to work in genericOp build with cre…
raikonenfnu Apr 26, 2025
b5cb807
clear up comment on when early exit is useful
raikonenfnu Apr 26, 2025
81676b5
Update mlir/lib/Dialect/Linalg/IR/LinalgOps.cpp
raikonenfnu Apr 26, 2025
4bf836c
clang formatting
raikonenfnu Apr 26, 2025
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7 changes: 6 additions & 1 deletion mlir/lib/Dialect/Linalg/IR/LinalgOps.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2284,7 +2284,12 @@ LogicalResult IndexOp::verify() {
}

OpFoldResult IndexOp::fold(FoldAdaptor adaptor) {
auto linalgOp = cast<LinalgOp>((*this)->getParentOp());
auto linalgOp = dyn_cast_or_null<LinalgOp>((*this)->getParentOp());
// Bail out if `linalg.index` does not have a proper parent yet at this
// point, e.g., when calling `createOrFold` during IR construction in
// `genericOp::build`.
if (!linalgOp)
return OpFoldResult{};

// Index of unit dims is always 0.
SmallVector<int64_t, 4> loopBounds = linalgOp.getStaticLoopRanges();
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