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6 Commits

Author SHA1 Message Date
River Riddle
de2d0dfbca Fold the functionality of OperationInst into Instruction. OperationInst still exists as a forward declaration and will be removed incrementally in a set of followup cleanup patches. 
PiperOrigin-RevId: 232198540
 2019-03-29 16:09:19 -07:00
River Riddle
5052bd8582 Define the AffineForOp and replace ForInst with it. This patch is largely mechanical, i.e. changing usages of ForInst to OpPointer<AffineForOp>. An important difference is that upon construction an AffineForOp no longer automatically creates the body and induction variable. To generate the body/iv, 'createBody' can be called on an AffineForOp with no body. 
PiperOrigin-RevId: 232060516
 2019-03-29 16:06:49 -07:00
River Riddle
755538328b Recommit: Define a AffineOps dialect as well as an AffineIfOp operation. Replace all instances of IfInst with AffineIfOp and delete IfInst. 
PiperOrigin-RevId: 231342063
 2019-03-29 15:59:30 -07:00
Nicolas Vasilache
ae772b7965 Automated rollback of changelist 231318632. 
PiperOrigin-RevId: 231327161
 2019-03-29 15:42:38 -07:00
River Riddle
5ecef2b3f6 Define a AffineOps dialect as well as an AffineIfOp operation. Replace all instances of IfInst with AffineIfOp and delete IfInst. 
PiperOrigin-RevId: 231318632
 2019-03-29 15:42:08 -07:00
Uday Bondhugula
b934d75b8f Convert expr - c * (expr floordiv c) to expr mod c in AffineExpr 
- Detect 'mod' to replace the combination of floordiv, mul, and subtract when
  possible at construction time; when 'c' is a power of two, this reduces the number of
  operations; also more compact and readable. Update simplifyAdd for this.

  On a side note:
  - with the affine expr flattening we have, a mod expression like d0 mod c
    would be flattened into d0 - c * q,  c * q <= d0 <= c*q + c - 1, with 'q'
    being added as the local variable (q = d0 floordiv c); as a result, a mod
    was turned into a floordiv whenever the expression was reconstructed back,
    i.e., as  d0 - c * (d0 floordiv c); as a result of this change, we recover
    the mod back.

- rename SimplifyAffineExpr -> SimplifyAffineStructures (pass had been renamed but
  the file hadn't been).

PiperOrigin-RevId: 228258120
 2019-03-29 15:02:56 -07:00