This makes it a little more consistent; now, "cretonne" is never capitalized
in identifier, path, or URL contexts. It is capitalized in natural
language contexts when referring to the project.
While the specifics of these terms are debatable, "IR" generally
isn't incorrect in this context, and is the more widely recognized
term at this time.
See also the discussion in #267.
Fixes#267.
* API and data structures proposal for the SSA construction module
* Polished API and implemented trivial functions
* API more explicit, Variable now struct parameter
* Sample test written to see how the API could be used
* Implemented local value numbering for SSABuilder
* Implemented SSA within a single Ebb
* Unfinished unoptimized implementation for recursive use and seal
* Working global value numbering
The SSABuilder now create ebb args and modifies jump instructions accordingly
* Updated doc and improved branch argument modifying.
Removed instructions::branch_arguments and instructions::branch_argument_mut
* SSA building: bugfix, asserts and new test case
Missing a key optimization to remove cycles of Phi
* SSA Building: small changes after code review
Created helper function for seal_block (which now contains sanity checks)
* Optimization: removed useless phis (ebb arguments)
Using pessimistic assumption that when using a non-def variable in an unsealed block we create an ebb argument which is removed when sealing if we detect it as useless
Using aliases to avoid rewriting variables
* Changed the semantics of remove_ebb_arg and turned it into a proper API method
* Adapted ssa branch to changes in the DFG API
* Abandonned SparseMaps for EntityMaps, added named structure for headr block data.
* Created skeletton for a Cretonne IL builder frontend
* Frontend IL builder: first draft of implementation with example of instruction methods
* Working basic implementation of the frontend
Missing handling of function arguments and return values
* Interaction with function signature, sample test, more checks
* Test with function verifier, seal and fill sanity check
* Implemented python script to generate ILBuilder methods
* Added support for jump tables and stack slot
* Major API overhaul
* No longer generating rust through Python but implements InstBuilder
* No longer parametrized by user's blocks but use regular `Ebb`
* Reuse of allocated memory via distinction between ILBuilder and FunctionBuilder
* Integrate changes from StackSlot
* Improved error message
* Added support for jump arguments supplied by the user
* Added an ebb_args proxy method needed
* Adapted to Entity_ref splitted into a new module
* Better error messages and fixed tests
* Added method to change jump destination
* We whould be able to add unreachable code
* Added inst_result proxy to frontend
* Import support
* Added optimization for SSA construction:
If multiple predecessors but agree on value don't create EBB argument
* Move unsafe and not write-only funcs apart, improved doc
* Added proxy function for append_ebb_arg
* Support for unreachable code and better layout of the Ebbs
* Fixed a bug yielding an infinite loop in SSA construction
* SSA predecessors lookup code refactoring
* Fixed bug in unreachable definition
* New sanity check and display debug function
* Fixed bug in verifier and added is_pristine ;ethod for frontend
* Extended set of characters printable in function names
To be able to print names of functions in test suite
* Fixes and improvements of SSA construction after code review
* Bugfixes for frontend code simplification
* On-the-fly critical edge splitting in case of br_table with jump arguments
* No more dangling undefined values, now attached as EBB args
* Bugfix: only split corresponding edges on demand, not all br_table edges
* Added signature retrieval method
* Bugfix for critical edge splitting not sealing the ebbs it created
* Proper handling of SSA side effects by the frontend
* Code refactoring: moving frontend and SSA to new crate
* Frontend: small changes and bugfixes after code review
