- scoped traversals can now raise errors which contain the path of the
current scope and an approximate source location based on preceding
trace comments, if available
- initially, this new error messaging has only been added for the
illegal size cast checks in the TypeOf and Cast conversions
- error suite tests can provide a verbose mode expected source location
- error suite runs in both regular and verbose mode
- add helper for extracting "flags" from test files
- common assertMatch, assertNotMatch helpers
- remove unused assertExists helper
- fix un-escaped wildcard in assert_deferred_nonzero.sv
Specifically, support has been added for non-ANSI style port
declarations where the port declaration is separate from the
corresponding net or variable declaration.
- all inputs are now decoded as UTF-8, regardless of the platform
- decoding failures are now tolerated via transliteration given errant
characters are generally expected to appear in comments
This adds support for typed valued parameters declared in parameter port
lists without explicitly providing a leading `parameter` or `localparam`
marker.
- use iverilog's -gstrict-expr-width throughout test suite
- add warnings for excess bits or padding zeroes in number literals
- add new --oversized-numbers parameter to retain support for unsized
numbers wider than 32 bits
- localized use of oversized numbers to new truncate test suite which
verifies the behavior of both modes, and compares against the known
behavior of iverilog
- detect and forbid non-positive size casts
- detect and forbid negative struct pattern literal indices
- avoid invalid constant folding of negative based literals
- support ports with sizes which depend on constant functions
- restore package item injection utility to package conversion module
- additional unbased unsized conversion test coverage
- references to other instances are no longer flagged
- special handling for genvars to avoid flagging and modport scoping
- interface inlining visits expressions in declarations
- Scoper has interface for removing entries
The interface conversion no longer substitutes parameters immediately,
instead fully scoping modports and allowing hierarchical constants to be
resolved separately. This fixes an issue where struct parameters could
lose their type information during substitution. The conversion also now
handles renaming references to the module or interface top-level scope.
- scoper item injection can no longer affect generate scoping
- cast conversion injects functions into the top level when possible
- cast conversion considers loop variables to be local
- `else if` generate blocks are still scopes at the current level
- convert loops with no or many incrementations
- restrict AST node to only contain traditional initializations
- parser elaborates for loop decls into a synthetic block
- decl list codegen is now specific to parameter decl lists
- update jump conversion special cases for new representation
- first experiments with bimapM
Zachary Snow
Saw Xue Zheng