Commit Graph

156 Commits

Author SHA1 Message Date
River Riddle
4c465a181d Implement value type abstraction for types.
This is done by changing Type to be a POD interface around an underlying pointer storage and adding in-class support for isa/dyn_cast/cast.

PiperOrigin-RevId: 219372163
2019-03-29 13:45:54 -07:00
Chris Lattner
085b687fbd Add support for walking the use list of an SSAValue and converting owners to
Operation*'s, simplifying some code in GreedyPatternRewriteDriver.cpp.

Also add print/dump methods on Operation.

PiperOrigin-RevId: 219045764
2019-03-29 13:43:01 -07:00
Chris Lattner
967d934180 Fix two issues:
1) We incorrectly reassociated non-reassociative operations like subi, causing
    miscompilations.
 2) When constant folding, we didn't add users of the new constant back to the
    worklist for reprocessing, causing us to miss some cases (pointed out by
    Uday).

The code for tensorflow/mlir#2 is gross, but I'll add the new APIs in a followup patch.

PiperOrigin-RevId: 218803984
2019-03-29 13:40:35 -07:00
Chris Lattner
7de0da9594 Refactor all of the canonicalization patterns out of the Canonicalize pass, and
make operations provide a list of canonicalizations that can be applied to
them.  This allows canonicalization to be general to any IR definition.

As part of this, sink PatternMatch.h/cpp down to the IR library to fix a
layering problem.

PiperOrigin-RevId: 218773981
2019-03-29 13:39:49 -07:00
River Riddle
792d1c25e4 Implement value type abstraction for attributes.
This is done by changing Attribute to be a POD interface around an underlying pointer storage and adding in-class support for isa/dyn_cast/cast.

PiperOrigin-RevId: 218764173
2019-03-29 13:39:19 -07:00
Chris Lattner
64d52014bd Move transform utilities out to their own TransformUtils library, instead of
just having the pattern matcher in its own library.  At this point,
lib/Transforms/*.cpp are all actually passes themselves (and will probably
eventually be themselves move to a new subdirectory as we accrete more).

PiperOrigin-RevId: 218745193
2019-03-29 13:39:06 -07:00