[llvm] Add FeatureFuseLiterals as SubTargetFeature for Grace and Olympus (PR #160257)

[David Green via llvm-commits]

https://github.com/davemgreen commented:

Can you provide an example of the function this help with? You said it was something in povray? I'm wondering if it is something we can fix more directly. Why are we hoisting a constant into the entry block off a function that can otherwise be shrink-wrapped? Why does a load from a constant pool block shrink wrapping?

https://github.com/llvm/llvm-project/pull/160257