This was an arbitrary restriction caused by the way that modules were printed. Now that that has been fixed, this restriction can be removed.
PiperOrigin-RevId: 257240329
Operations must only contain a single region. Once attached, all operations that contain a 'mlir::SymbolTable::getSymbolAttrName()' StringAttr attribute within the child region will be verified to ensure that the names are uniqued. Operations using this trait also gain access to the 'SymbolTable' class, which can be used to manage the symbol table of the operation. This class also provides constant-time lookup of symbols by name, and will automatically rename symbols on insertion.
PiperOrigin-RevId: 257123573
Modules can now contain more than just Functions, this just updates the iteration API to reflect that. The 'begin'/'end' methods have also been updated to iterate over opaque Operations.
PiperOrigin-RevId: 257099084
This is an important step in allowing for the top-level of the IR to be extensible. FuncOp and ModuleOp contain all of the necessary functionality, while using the existing operation infrastructure. As an interim step, many of the usages of Function and Module, including the name, will remain the same. In the future, many of these will be relaxed to allow for many different types of top-level operations to co-exist.
PiperOrigin-RevId: 256427100
The ModuleOp contains a single region that must contain a single block. This block must be terminated by a new pseudo operation 'module_terminator'. The syntax for this operations is as follows:
`module` (`attributes` attr-dict)? region
Example:
module {
...
}
module attributes { ... } {
...
}
PiperOrigin-RevId: 254513752
resolver support.
Still TODO are verifier support (to make sure you don't use an attribute for a
function in another module) and the TODO in ModuleParser::finalizeModule that I
will handle in the next patch.
PiperOrigin-RevId: 209361648
This is pretty much minimal scaffolding for this step. Basic block arguments,
instructions, other terminators, a proper IR representation for
blocks/instructions, etc are all coming.
PiperOrigin-RevId: 201826439
