5 Commits

Author SHA1 Message Date
River Riddle
bcacef1a70 Add a new dialect hook 'materializeConstant' to create a constant operation that materializes an attribute value with the given type. This effectively adds support for dialect specific constant values that have different invariants than std.constant. 'OperationFolder' is updated to use this new hook, or attempt to default to std.constant when legal.
PiperOrigin-RevId: 254570153
2019-06-22 13:05:27 -07:00
River Riddle
0560f153b8 Add utility 'create' methods to OperationFolder that will create an operation with a given OpBuilder and automatically try to fold it, similarly to OpBuilder::createOrFold. The difference here is that these methods enable folding to constants in addition to existing values. This functionality is then used to replace linalg::FunctionConstants.
PiperOrigin-RevId: 251716247
2019-06-09 16:19:51 -07:00
River Riddle
f1b848e470 NFC: Rename FuncBuilder to OpBuilder and refactor to take a top level region instead of a function.
PiperOrigin-RevId: 251563898
2019-06-09 16:17:59 -07:00
River Riddle
9b4a02c1e9 NFC: Rename FoldHelper to OperationFolder and split a large function in two.
PiperOrigin-RevId: 251485843
2019-06-09 16:17:11 -07:00
River Riddle
1982afb145 Unify the 'constantFold' and 'fold' hooks on an operation into just 'fold'. This new unified fold hook will take constant attributes as operands, and may return an existing 'Value *' or a constant 'Attribute' when folding. This removes the awkward situation where a simple canonicalization like "sub(x,x)->0" had to be written as a canonicalization pattern as opposed to a fold.
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PiperOrigin-RevId: 248582024
2019-05-20 13:44:24 -07:00