Integrate LLVM at llvm/llvm-project@e1dcda966edf
Integrate LLVM at llvm/llvm-project@e1dcda966edf

Updates LLVM usage to match
[e1dcda966edf](https://github.com/llvm/llvm-project/commit/e1dcda966edf)

PiperOrigin-RevId: 433534862

google-research/structured-additive-IR,google-research/structured-additive-IR