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
9ec6b5b749
Remove some extraneous const qualifiers on Type, and 0b1 -> 1 in tblgen files. (NFC)
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PiperOrigin-RevId: 248332674
2019-05-20 13:42:56 -07:00
635bebaac9
Update "Table-driven Op Definition Specification" doc
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This CL turns the previous "Op Definition" doc into a manual for table-driven
op definition specification by fleshing out more details of existing mechanisms.
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PiperOrigin-RevId: 248013274
2019-05-20 13:40:43 -07:00
d468eaccfc
Update custom rewrite example, which seems to have drifted a bit from the implementation.
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PiperOrigin-RevId: 242968685
2019-04-11 10:53:01 -07:00
d16213bf66
Update the QuickstartRewrites document to include information about the new 'matchAndRewrite' functionality in RewritePatterns.
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PiperOrigin-RevId: 240987764
2019-03-29 17:55:05 -07:00
5246bceee0
Now that ConstOpPointer is gone, we can change the various methods generated by
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tblgen be non-const. This requires introducing some const_cast's at the
moment, but those (and lots more stuff) will disappear in subsequent patches.
This significantly simplifies those patches because the various tblgen op emitters
get adjusted.
PiperOrigin-RevId: 239954566
2019-03-29 17:33:45 -07:00
157e3cdb19
Add documentation for the new pass infrastructure.
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PiperOrigin-RevId: 237153501
2019-03-29 17:04:03 -07:00
3e656599f1
Define a PassID class to use when defining a pass. This allows for the type used for the ID field to be self documenting. It also allows for the compiler to know the set alignment of the ID object, which is useful for storing pointer identifiers within llvm data structures.
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PiperOrigin-RevId: 235107957
2019-03-29 16:37:12 -07:00
31f2b3ffa1
Address follow on comments for quickstart doc.
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PiperOrigin-RevId: 232705423
2019-03-29 16:16:58 -07:00
1b1f293a5d
MLIR graph rewrite using pattern quickstart doc.
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Start quickstart guide of how to define ops + specify patterns for rewrite.
PiperOrigin-RevId: 232490287
2019-03-29 16:14:35 -07:00
River Riddle