[revert](feat) revert Replace LLVM dialect with MLIR (#1038)

[245516766]

This reverts commit daceb99.

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[github-actions]

🔍 OpenCodeReview found 2 issue(s) in this PR.

• ✅ Successfully posted inline: 2 comment(s)

[github-actions]

[performance · high]
The ssbufferPtrs parameter was changed from ArrayRef<SmallVector<Value>> (a lightweight view type) to SmallVector<SmallVector<Value>> (pass-by-value), which now causes a deep copy of the entire nested SmallVector structure on every call. This function is called numerous times in loops (e.g., ~19 call sites in the .cpp file), making this a significant performance regression. The parameter should be passed by const reference (const SmallVector<SmallVector<Value>> &) or kept as ArrayRef<SmallVector<Value>> to avoid unnecessary copying.

Suggestion:

Suggested change

	Value getSSBufferPtr(bool isAIC, int groupIdx, int ptrSetIdx,
	DenseMap<int, Value> &precomputedPtrs,
	SmallVector<SmallVector<Value>> ssbufferPtrs);
	Value getSSBufferPtr(bool isAIC, int groupIdx, int ptrSetIdx,
	DenseMap<int, Value> &precomputedPtrs,
	const SmallVector<SmallVector<Value>> &ssbufferPtrs);

[github-actions]

[maintainability · low]
Unused variable foundValue is extracted from findResult.value().first but never referenced afterwards. Only dataType (the second element of the pair) is actually used. This will likely trigger compiler warnings about unused variables and introduces unnecessary code.

Suggestion:

Suggested change

	Value foundValue = findResult.value().first;
	Type dataType = findResult.value().second;
	Type dataType = findResult.value().second;

[245516766]

/retry