llvm-project
[DAGCombiner] Fold subtraction if above threshold to `umin`
#134235

Merged

[DAGCombiner] Fold subtraction if above threshold to `umin` #134235

pfusik merged 5 commits into llvm:main from pfusik:sub-minu

llvmbot added backend:RISC-V

pfusik commented on 2025-04-03

topperc commented on 2025-04-03

pfusik marked this pull request as draft 1 year ago

pfusik changed the title ~~[RISCV] Fold subtraction if above threshold to Zbb `minu`~~ [DAGCombiner] Fold subtraction if above threshold to `umin` 1 year ago

mshockwave commented on 2025-04-07

pfusik force pushed to 63201050 1 year ago

pfusik marked this pull request as ready for review 1 year ago

llvmbot added llvm:SelectionDAG

lukel97 approved these changes on 2025-04-08

mshockwave approved these changes on 2025-04-08

[RISCV] Fold subtraction if above threshold to Zbb `minu`

d67978a2

[RISCV] Prevent transform on >XLEN types

75b5292d

[DAGCombiner] Move the transform from RISCVISelLowering

130bbb6b

pfusik force pushed to 130bbb6b 1 year ago

topperc approved these changes on 2025-04-09

[RISCV][test] Add `uge` test for subtraction if above threshold

d797364c

[RISCV] Handle a variant with inverse comparison

0a1c55bf

topperc approved these changes on 2025-04-10

pfusik merged 807cc379 into main 1 year ago

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mshockwave

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llvm-project [DAGCombiner] Fold subtraction if above threshold to `umin` #134235 Merged

[DAGCombiner] Fold subtraction if above threshold to `umin` #134235

llvm-project
[DAGCombiner] Fold subtraction if above threshold to `umin`
#134235

Merged