[Mlir-commits] [mlir] [mlir][scf] Preserve reductions when collapsing parallel loops (PR #216538)

llvmlistbot at llvm.org llvmlistbot at llvm.org
Sat Aug 15 23:28:17 PDT 2026


github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


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<details>
<summary>
You can test this locally with the following command:
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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- mlir/lib/Dialect/SCF/Utils/Utils.cpp --diff_from_common_commit
``````````

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in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
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<details>
<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/mlir/lib/Dialect/SCF/Utils/Utils.cpp b/mlir/lib/Dialect/SCF/Utils/Utils.cpp
index 91e7ccdb3..8c8bb608e 100644
--- a/mlir/lib/Dialect/SCF/Utils/Utils.cpp
+++ b/mlir/lib/Dialect/SCF/Utils/Utils.cpp
@@ -1159,8 +1159,7 @@ void mlir::collapseParallelLoops(
   // that is un-normalized already by the previous logic.
   auto newPloop = scf::ParallelOp::create(
       rewriter, loc, lowerBounds, upperBounds, steps, loops.getInitVals(),
-      [&](OpBuilder &insideBuilder, Location, ValueRange ploopIVs,
-          ValueRange) {
+      [&](OpBuilder &insideBuilder, Location, ValueRange ploopIVs, ValueRange) {
         for (unsigned i = 0, e = combinedDimensions.size(); i < e; ++i) {
           Value previous = ploopIVs[i];
           unsigned numberCombinedDimensions = combinedDimensions[i].size();

``````````

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https://github.com/llvm/llvm-project/pull/216538


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