[llvm] [SCEV] Rework wrap-flag-inference for sext-addrec (PR #217362)

[via llvm-commits]

github-actions[bot] wrote:

test-suite diff from 62b1dce2e660c48407289bc921871590e68e83a9...16357cb88eda473fe5d36eabee0914e0943867b6: https://github.com/llvm/llvm-project/actions/runs/32629100306/artifacts/9491540903

Statistics: https://github.com/llvm/llvm-project/actions/runs/32629100306/artifacts/9491541319

## riscv64-linux-gnu `-march=rva23u64 -O3`
| ('Program', '')    |   ('size..text', 'base') |   ('size..text', 'head') |   ('size..text', 'diff') |
|:-------------------|-------------------------:|-------------------------:|-------------------------:|
| Geomean difference |                      nan |                      nan |                        0 |
## 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/217362