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[Arith][Refactor] Return Optional<PrimExpr> from TryConstFold #12784

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Merged
merged 1 commit into from
Sep 15, 2022
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[Arith][Refactor] Return Optional<PrimExpr> from TryConstFold #12784

merged 1 commit into from
Sep 15, 2022

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@Lunderberg Lunderberg commented Sep 14, 2022 •
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Prior to this commit, the templated TryConstFold utility returned an undefined PrimExpr to represent a failure to perform constant folding. This commit makes this explicit by returning Optional<PrimExpr> instead.

cc @junrushao1994

@Lunderberg
[Arith][Refactor] Return Optional<PrimExpr> from TryConstFold
954011f 
Prior to this commit, the templated `TryConstFold` utility returned an
undefined `PrimExpr` to represent a failure to perform constant
folding.  This commit makes this explicit by returning
`Optional<PrimExpr>` instead.
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Lunderberg commented Sep 14, 2022

From a brief look at the commit history, TryConstFold was introduced in #2719, significantly predating the introduction of Optional in #5314.

wrongtest-intellif
wrongtest-intellif approved these changes Sep 15, 2022
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LGTM

@wrongtest-intellif wrongtest-intellif merged commit 397cf87 into apache:main Sep 15, 2022
@Lunderberg Lunderberg deleted the const_fold_return_optional branch September 15, 2022 13:17
@AndrewZhaoLuo AndrewZhaoLuo mentioned this pull request Oct 4, 2022
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xinetzone pushed a commit to daobook/tvm that referenced this pull request Nov 25, 2022
@Lunderberg @xinetzone
[Arith][Refactor] Return Optional<PrimExpr> from TryConstFold (apache…
58f7566 
…#12784)

Prior to this commit, the templated `TryConstFold` utility returned an
undefined `PrimExpr` to represent a failure to perform constant
folding.  This commit makes this explicit by returning
`Optional<PrimExpr>` instead.
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