swift

5c8a95f2 - [sil-llvm-gen] Add support for emitting IR before LLVM optimizations run.

[sil-llvm-gen] Add support for emitting IR before LLVM optimizations run. Specifically, I renamed the old llvm-as which printed with optimization as llvm-as-opt and made llvm-as just test IRGen. That is really the true reason that I created this utility many years ago: to test how IRGen lowers specific SIL instruction sequences. How LLVM optimizes such sequences once lowered is a different problem. I updated the one test that used sil-llvm-gen and required optimizations to use llvm-as-opt so that the tests output did not change.