Integrate LLVM at llvm/llvm-project@bc432c96349c
Integrate LLVM at llvm/llvm-project@bc432c96349c

Updates LLVM usage to match
[bc432c96349c](https://github.com/llvm/llvm-project/commit/bc432c96349c)

PiperOrigin-RevId: 461141213

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