[Mlir-commits] [mlir] [mlir][linalg] do not break outs from block argument (PR #73572)
Mehdi Amini
llvmlistbot at llvm.org
Tue Nov 28 16:11:37 PST 2023
================
@@ -1818,6 +1818,11 @@ struct RemoveOutsDependency : public OpRewritePattern<GenericOp> {
if (sparse_tensor::getSparseTensorEncoding(operandVal.getType()))
continue;
+ // If outs is wired from a block argument, keep the dependency to
+ // prevent the argument from being optimized away.
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joker-eph wrote:
This comment as-is is weird: why would we not want a block argument to be optimized away?
https://github.com/llvm/llvm-project/pull/73572
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