| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | [SCEV] Simplify trunc-of-add/mul to add/mul-of-trunc under more circumstances. | Justin Lebar | 2018-06-14 | 1 | -1/+1 |
| | | | | | | | | | | | | | | | | | | | | | Summary: Previously we would do this simplification only if it did not introduce any new truncs (excepting new truncs which replace other cast ops). This change weakens this condition: If the number of truncs stays the same, but we're able to transform trunc(X + Y) to X + trunc(Y), that's still simpler, and it may open up additional transformations. While we're here, also clean up some duplicated code. Reviewers: sanjoy Subscribers: hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D48160 llvm-svn: 334736 | ||||
| * | [SCEV] Look through zero-extends in howFarToZero | Krzysztof Parzyszek | 2018-06-08 | 1 | -0/+45 |
| An expression like (zext i2 {(trunc i32 (1 + %B) to i2),+,1}<%while.body> to i32) will become zero exactly when the nested value becomes zero in its type. Strip injective operations from the input value in howFarToZero to make the value simpler. Differential Revision: https://reviews.llvm.org/D47951 llvm-svn: 334318 | |||||
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index : bcm5719-llvm | |
| Project Ortega BCM5719 LLVM | Raptor Computing Systems |
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