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21 commits

Author SHA1 Message Date
Dan Klishch
14ee25b8ba JSSpecCompiler: Make -xspec capable of parsing the whole specification 
... in theory. In practice, we fail to parse all of the functions.
 2024-01-21 14:57:10 -07:00
Dan Klishch
483e195e48 JSSpecCompiler: Store arguments in declaration instead of definition 
And create a struct encapsulating argument name in the preparation for
argument types and optional arguments.
 2024-01-21 14:57:10 -07:00
Dan Klishch
0806ccaeec JSSpecCompiler: Start converting crashes to error messages 
I got fed up with looking at error messages that tell me "VERIFICATION
FAILED: !is_error()". So this commit introduces DiagnosticEngine class
whose purpose is to accumulate and print more user-friendly errors.
 2024-01-21 14:57:10 -07:00
Dan Klishch
3aec6952a2 JSSpecCompiler: Make TranslationUnit fields private 
For some reason I was afraid to add trivial accessors to classes
in earlier PRs, so we now have dozens of classes with public fields. I'm
not exactly looking forward to refactoring them all at once but I'll
do so gradually.
 2024-01-21 14:57:10 -07:00
Dan Klishch
5825eaa264 JSSpecCompiler: Save references to return value and function arguments 2024-01-14 16:05:51 -07:00
Dan Klishch
7f47340c82 JSSpecCompiler: Create FunctionDeclarations for all external functions 2024-01-14 16:05:51 -07:00
Dan Klishch
5338cdd153 JSSpecCompiler: Add bare-bones DCE pass 
Right now the only dead code it eliminates is the unused phi nodes.
 2024-01-14 16:05:51 -07:00
Dan Klishch
fbdb1a3d61 JSSpecCompiler: Add SSA form building pass 2024-01-12 16:22:22 -07:00
Dan Klishch
12072dbac5 JSSpecCompiler: Add control flow graph simplification pass 
It removes empty `BasicBlock`s with an unconditional jump continuation
and then removes unreferenced blocks from the graph.
 2024-01-04 12:06:56 -07:00
Dan Klishch
ce6b987330 JSSpecCompiler: Add --dump-cfg option 2023-12-14 09:06:05 -07:00
Dan Klishch
ff44aea917 JSSpecCompiler: Add control flow building pass 2023-12-14 09:06:05 -07:00
Dan Klishch
dbd624e875 JSSpecCompiler: Allow dumping AST after specified passes 2023-12-07 10:13:21 -07:00
Dan Klishch
6ed069ea8d JSSpecCompiler: Provide an adequate command line interface 2023-10-26 15:45:31 -06:00
Dan Klishch
867ce0df52 JSSpecCompiler: Move passes to Passes subdirectory of Compiler/ 2023-10-26 15:45:31 -06:00
Dan Klishch
61fa00d46c JSSpecCompiler: Refactor CompilerPass to accept TranslationUnitRef 2023-10-26 15:45:31 -06:00
Dan Klishch
567b1f6e7c JSSpecCompiler: Adopt more C++ terminology 
Let's not use strange names like `ExecutionContext`, which nobody will
understand in the future.
 2023-10-02 21:15:08 +02:00
Dan Klishch
81519975c5 JSSpecCompiler: Add reference resolving pass 
It replaces UnresolvedReference with Variable, FunctionPointer, or
SlotName nodes. Also, it gathers all variable names from their
declarations.
 2023-09-17 16:04:42 -06:00
Dan Klishch
4c4e1e1aed JSSpecCompiler: Add if branch merging pass 
It merges standalone IfBranch/ElseIfBranch nodes into IfElseIfChain
nodes. This will ease CFG generation later.
 2023-09-09 11:20:43 -06:00
Dan Klishch
72794e7843 JSSpecCompiler: Add function call canonicalization pass 
It simplifies ladders of BinaryOperators nodes in the function call
arguments into nice and neat FunctionCall node. Ladders initially appear
since I do not want to complicate expression parser, so it interprets
`f(a, b, c, d)` as `f "function_call_operator" (a, (b, (c, d))))`.
 2023-09-09 11:20:43 -06:00
Dan Klishch
cd8f4aaa7d JSSpecCompiler: Introduce Function and ExecutionContext classes 
Currently, they are not extremely useful, but the plan is to store
all function-local state in JSSpecCompiler::Function and all
"translation unit" state in ExecutionContext.
 2023-09-02 19:57:06 +02:00
Dan Klishch
66f4cdba85 JSSpecCompiler: Make it compile and dump AST created from stdin input 2023-08-31 11:00:31 +02:00