[llvm] [VPlan] Relax address constraints during stride analysis (PR #209168)

[via llvm-commits]

github-actions[bot] wrote:

test-suite diff from a624d9999cf1ac83aa1fe0820c9311de8106175e...535aaa7eecb9f17b05f9506a8bcb8d3bd2e8f55e: https://github.com/llvm/llvm-project/actions/runs/29251650085/artifacts/8281734084

Statistics: https://github.com/llvm/llvm-project/actions/runs/29251650085/artifacts/8281734500

## riscv64-linux-gnu `-march=rva23u64 -O3`
| ('Program', '')    |   ('size..text', 'base') |   ('size..text', 'head') |   ('size..text', 'diff') |
|:-------------------|-------------------------:|-------------------------:|-------------------------:|
| lua/lua.           |                   101264 |                   101398 |              0.00132327  |
| sqlite3/sqlite3.   |                   364602 |                   364620 |              4.93689e-05 |
| Geomean difference |                      nan |                      nan |             -4.94633e-07 |
## 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/209168