================
@@ -2479,6 +2479,39 @@ OpFoldResult cir::UnaryOp::fold(FoldAdaptor adaptor) {
if (isBoolNot(previous))
return previous.getInput();
+ // Fold constant unary operations.
+ if (auto srcConst = getInput().getDefiningOp<cir::ConstantOp>()) {
----------------
xlauko wrote:
I believe standarc MLIR canonicalize pass uses dead code analysis for everythng
once it is finished, so one does not need to do redundant clean up
implementation.
https://github.com/llvm/llvm-project/pull/174882
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