Auto merge of #45054 - andjo403:master, r=alexcrichton

Faster compile times for release builds with llvm fix

Run global optimizations after the inliner to avoid spending time on optimizing dead code.

fixes #44655

llvm @ c7a16bd5

-Subproject commit d9e7d2696e41983b6b5a0b4fac604b4e548a84d3
+Subproject commit c7a16bd57c2a9c643a52f0cebecdaf0b6a996da1