[llvm] [VPlan] Recognize disjoint 'or' in getSCEVExprForVPValue (PR #218405)

[via llvm-commits]

github-actions[bot] wrote:

test-suite diff from e3ca61f7a41d0324453dd4e6fe67d2a4541d810b...8a35969d6fa3d85f90f23a1f8be4130b46c12342: https://github.com/llvm/llvm-project/actions/runs/32731338500/artifacts/9525398598

Statistics: https://github.com/llvm/llvm-project/actions/runs/32731338500/artifacts/9525399969

## riscv64-linux-gnu `-march=rva23u64 -O3`
| ('Program', '')                       |   ('size..text', 'base') |   ('size..text', 'head') |   ('size..text', 'diff') |
|:--------------------------------------|-------------------------:|-------------------------:|-------------------------:|
| mediabench/mpeg2/mpeg2dec/mpeg2decode |                    35920 |                    36070 |              0.00417595  |
| ASCI_Purple/SMG2000/smg2000           |                   141828 |                   141928 |              0.000705079 |
| Geomean difference                    |                      nan |                      nan |             -1.46272e-05 |
## aarch64-linux-gnu `-march=armv9-a -O3`
| ('Program', '')    |   ('size..text', 'base') |   ('size..text', 'head') |   ('size..text', 'diff') |
|:-------------------|-------------------------:|-------------------------:|-------------------------:|
| Geomean difference |                      nan |                      nan |                        0 |
## x86_64-linux-gnu `-march=x86-64-v3 -O3`
| ('Program', '')    |   ('size..text', 'base') |   ('size..text', 'head') |   ('size..text', 'diff') |
|:-------------------|-------------------------:|-------------------------:|-------------------------:|
| Geomean difference |                      nan |                      nan |                        0 |


https://github.com/llvm/llvm-project/pull/218405