[Mlir-commits] [mlir] [mlir][linalg][nfc] use `llvm::DenseMap` (PR #154981)

[Elam Cohavi]

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@@ -125,7 +124,7 @@ computeTransposeBroadcast(AffineMap &map) {
     // refering to d3, d4. Therefore, re-base the transpose dimensions so
     // that they start from d0.
     permutation.resize(minorSize);
-    std::map<int64_t, int64_t> minorMap;
+    llvm::DenseMap<int64_t, int64_t> minorMap;
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elamc-2 wrote:

That makes sense. I wonder in that case if the original intention to maintain a map is for cases such as: 
`[1,2,4]`
.. where a dimension isn't present and you wouldn't be able to rely on the index being equivalent to the key. 


https://github.com/llvm/llvm-project/pull/154981