13 Commits

Author SHA1 Message Date
River Riddle
cb89c7e3f7 [mlir] Remove unnecessary assert for single region.
This was left over debugging.
2020-01-13 13:55:50 -08:00
River Riddle
2bdf33cc4c [mlir] NFC: Remove Value::operator* and Value::operator-> now that Value is properly value-typed.
Summary: These were temporary methods used to simplify the transition.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D72548
2020-01-11 08:54:39 -08:00
River Riddle
e62a69561f NFC: Replace ValuePtr with Value and remove it now that Value is value-typed.
ValuePtr was a temporary typedef during the transition to a value-typed Value.

PiperOrigin-RevId: 286945714
2019-12-23 16:36:53 -08:00
Mehdi Amini
56222a0694 Adjust License.txt file to use the LLVM license
PiperOrigin-RevId: 286906740
2019-12-23 15:33:37 -08:00
River Riddle
35807bc4c5 NFC: Introduce new ValuePtr/ValueRef typedefs to simplify the transition to Value being value-typed.
This is an initial step to refactoring the representation of OpResult as proposed in: https://groups.google.com/a/tensorflow.org/g/mlir/c/XXzzKhqqF_0/m/v6bKb08WCgAJ

This change will make it much simpler to incrementally transition all of the existing code to use value-typed semantics.

PiperOrigin-RevId: 286844725
2019-12-22 22:00:23 -08:00
River Riddle
4562e389a4 NFC: Remove unnecessary 'llvm::' prefix from uses of llvm symbols declared in mlir namespace.
Aside from being cleaner, this also makes the codebase more consistent.

PiperOrigin-RevId: 286206974
2019-12-18 09:29:20 -08:00
River Riddle
4ea92a0586 NFC: Use Region::getBlocks to fix build failure with drop_begin.
PiperOrigin-RevId: 281656603
2019-11-20 19:30:46 -08:00
River Riddle
fafb708b9a Merge DCE and unreachable block elimination into a new utility 'simplifyRegions'.
This moves the different canonicalizations of regions into one place and invokes them in the fixed-point iteration of the canonicalizer.

PiperOrigin-RevId: 281617072
2019-11-20 15:53:19 -08:00
Mehdi Amini
6443583bfd Refactor getUsedValuesDefinedAbove to expose a variant taking a callback (NFC)
This will allow clients to implement a different collection strategy on these
values, including collecting each uses within the region for example.

PiperOrigin-RevId: 267803978
2019-09-07 17:03:01 -07:00
Mehdi Amini
ce702fc8da Add a getUsedValuesDefinedAbove() overload that takes an Operation pointer (NFC)
This is a convenient utility around the existing `getUsedValuesDefinedAbove()`
that take two regions.

PiperOrigin-RevId: 266686854
2019-09-01 16:32:10 -07:00
River Riddle
1e42954032 NFC: Standardize the terminology used for parent ops/regions/etc.
There are currently several different terms used to refer to a parent IR unit in 'get' methods: getParent/getEnclosing/getContaining. This cl standardizes all of these methods to use 'getParent*'.

PiperOrigin-RevId: 262680287
2019-08-09 20:07:52 -07:00
Alex Zinenko
4291ae7431 Factor Region::getUsedValuesDefinedAbove into Transforms/RegionUtils
Arguably, this function is only useful for transformations and should not
pollute the main IR.  Also make sure it accepts a the resulting container
by-reference instead of returning it.

PiperOrigin-RevId: 253622981
2019-06-19 23:03:51 -07:00
Alex Zinenko
ee6f84aebd Convert a nest affine loops to a GPU kernel
This converts entire loops into threads/blocks.  No check on the size of the
block or grid, or on the validity of parallelization is performed, it is under
the responsibility of the caller to strip-mine the loops and to perform the
dependence analysis before calling the conversion.

PiperOrigin-RevId: 253189268
2019-06-19 23:02:02 -07:00