[Mlir-commits] [mlir] [mlir][complex] Make complex MulOp commutative (PR #215257)

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Mon Aug 10 05:04:40 PDT 2026


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<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-mlir

Author: Bryth (matteo-rm)

<details>
<summary>Changes</summary>

This PR makes complex multiplication commutative. This is consistent with Arith's MulFOp, and Complex addition also being commutative.

---
Full diff: https://github.com/llvm/llvm-project/pull/215257.diff


1 Files Affected:

- (modified) mlir/include/mlir/Dialect/Complex/IR/ComplexOps.td (+1-1) 


``````````diff
diff --git a/mlir/include/mlir/Dialect/Complex/IR/ComplexOps.td b/mlir/include/mlir/Dialect/Complex/IR/ComplexOps.td
index 828379ded14b3..9a5140a28c388 100644
--- a/mlir/include/mlir/Dialect/Complex/IR/ComplexOps.td
+++ b/mlir/include/mlir/Dialect/Complex/IR/ComplexOps.td
@@ -367,7 +367,7 @@ def Log1pOp : ComplexUnaryOp<"log1p", [SameOperandsAndResultType]> {
 // MulOp
 //===----------------------------------------------------------------------===//
 
-def MulOp : ComplexArithmeticOp<"mul"> {
+def MulOp : ComplexArithmeticOp<"mul", [Commutative]> {
   let summary = "complex multiplication";
   let description = [{
     The `mul` operation takes two complex numbers and returns their product:

``````````

</details>


https://github.com/llvm/llvm-project/pull/215257


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