6 Commits

Author SHA1 Message Date
Chris Lattner
d613f5ab65 Refactor MLFunction to contain a StmtBlock for its body instead of inheriting
from it.  This is necessary progress to squaring away the parent relationship
that a StmtBlock has with its enclosing if/for/fn, and makes room for functions
to have more than one block in the future.  This also removes IfClause and ForStmtBody.

This is step 5/n towards merging instructions and statements, NFC.

PiperOrigin-RevId: 226936541
2019-03-29 14:36:35 -07:00
Chris Lattner
1301f907a1 Refactor ForStmt: having it contain a StmtBlock instead of subclassing
StmtBlock.  This is more consistent with IfStmt and also conceptually makes
more sense - a forstmt "isn't" its body, it contains its body.

This is step 1/N towards merging BasicBlock and StmtBlock.  This is required
because in the new regime StmtBlock will have a use list (just like BasicBlock
does) of operands, and ForStmt already has a use list for its induction
variable.

This is a mechanical patch, NFC.

PiperOrigin-RevId: 226684158
2019-03-29 14:35:19 -07:00
Uday Bondhugula
b9f53dc0bd Update/Fix LoopUtils::stmtBodySkew to handle loop step.
- loop step wasn't handled and there wasn't a TODO or an assertion; fix this.
- rename 'delay' to shift for consistency/readability.
- other readability changes.
- remove duplicate attribute print for DmaStartOp; fix misplaced attribute
  print for DmaWaitOp
- add build method for AddFOp (unrelated to this CL, but add it anyway)

PiperOrigin-RevId: 224892958
2019-03-29 14:25:07 -07:00
Alex Zinenko
cb40633969 Move definitions of lopoUnroll* functions to LoopUtils.cpp.
These functions are declared in Transforms/LoopUtils.h (included to the
Transforms/Utils library) but were defined in the loop unrolling pass in
Transforms/LoopUnroll.cpp.  As a result, targets depending only on
TransformUtils library but not on Transforms could get link errors.  Move the
definitions to Transforms/Utils/LoopUtils.cpp where they should actually live.
This does not modify any code.

PiperOrigin-RevId: 221508882
2019-03-29 13:57:44 -07:00
Nicolas Vasilache
cde8248753 [MLIR] Make upper bound implementation exclusive
This CL implement exclusive upper bound behavior as per b/116854378.
A followup CL will update the semantics of the for loop.

PiperOrigin-RevId: 220448963
2019-03-29 13:49:49 -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