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In `codegen_assert_terminator` we decide if a BB's successor is a candidate for merging, which requires that it be the only successor, and that it only have one predecessor. That result then gets passed down, and if it reaches `funclet_br` with the appropriate BB characteristics, then no `br` instruction is issued, a `MergingSucc::True` result is passed back, and the merging proceeds in `codegen_block`. The commit also adds `CachedLlbb`, a new type to help keep track of each BB that has been merged into its predecessor. |
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| .. | ||
| bootstrap | ||
| ci | ||
| doc | ||
| etc | ||
| librustdoc | ||
| llvm-project@a1232c451f | ||
| rustdoc-json-types | ||
| test | ||
| tools | ||
| README.md | ||
| stage0.json | ||
| version | ||
This directory contains the source code of the rust project, including:
- The test suite
- The bootstrapping build system
- Various submodules for tools, like cargo, etc.
For more information on how various parts of the compiler work, see the rustc dev guide.