Add features to enable LTO

bazelbuild / rules_swift

Bazel rules to build Swift on Apple and Linux platforms

Apache License 2.0

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Add features to enable LTO #1208

Closed mjburghard closed 4 months ago

mjburghard commented 4 months ago

Add features to enable LTO (thin and full). When passing -lto=, swiftc switches to emit bc files and the generated output-file-map must contain a mapping for llvm-bc instead of object.