[llvm] [VPlan] Run CSE in VPlanTransforms::optimize (PR #203370)

[via llvm-commits]

github-actions[bot] wrote:

test-suite diff from 1651159f32cfcf82ecbb364dbf879e97b53d8060...ddd9b05c3ed711d4e83b675e3a62917211a1aa52: https://github.com/llvm/llvm-project/actions/runs/29239812517/artifacts/8276850901

Statistics: https://github.com/llvm/llvm-project/actions/runs/29239812517/artifacts/8276851288

## riscv64-linux-gnu `-march=rva23u64 -O3`
| ('Program', '')                             |   ('size..text', 'base') |   ('size..text', 'head') |   ('size..text', 'diff') |
|:--------------------------------------------|-------------------------:|-------------------------:|-------------------------:|
| test-suite...arks/mafft/pairlocalalign.test |                   259238 |                   259454 |              0.000833211 |
| Geomean difference                          |                      nan |                      nan |              2.5946e-06  |
## aarch64-linux-gnu `-march=armv9-a -O3`
| ('Program', '')    |   ('size..text', 'base') |   ('size..text', 'head') |   ('size..text', 'diff') |
|:-------------------|-------------------------:|-------------------------:|-------------------------:|
| Geomean difference |                      nan |                      nan |             -0.000270058 |
## x86_64-linux-gnu `-march=x86-64-v3 -O3`
| ('Program', '')                             |   ('size..text', 'base') |   ('size..text', 'head') |   ('size..text', 'diff') |
|:--------------------------------------------|-------------------------:|-------------------------:|-------------------------:|
| MultiSource/Benchmarks/sim/sim              |                    19535 |                    20623 |              0.0556949   |
| SingleSour.../Benchmarks/Linpack/linpack-pc |                    29894 |                    30022 |              0.0042818   |
| MultiSource/Applications/oggenc/oggenc      |                   306382 |                   307054 |              0.00219334  |
| MultiSourc...plitting-dbl/NodeSplitting-dbl |                   113243 |                   113483 |              0.00211934  |
| MultiSource/Benchmarks/PAQ8p/paq8p          |                   106400 |                   106544 |              0.00135338  |
| MultiSourc...VC/Expansion-flt/Expansion-flt |                    97808 |                    97920 |              0.0011451   |
| MultiSourc...dence-dbl/LinearDependence-dbl |                   121127 |                   121255 |              0.00105674  |
| MultiSourc...VC/Expansion-dbl/Expansion-dbl |                   116269 |                   116381 |              0.000963283 |
| SingleSour...bench/stencils/fdtd-2d/fdtd-2d |                     8069 |                     8075 |              0.000743587 |
| Geomean difference                          |                      nan |                      nan |              3.45526e-08 |


https://github.com/llvm/llvm-project/pull/203370