* Move Return, Constant and AffineApply out into BuiltinOps;
* BuiltinOps are always registered, while StandardOps follow the same dynamic registration;
* Kept isValidX in MLValue as we don't have a verify on AffineMap so need to keep it callable from Parser (I wanted to move it to be called in verify instead);
PiperOrigin-RevId: 216592527
- Fold the lower/upper bound of a loop to a constant whenever the result of the
application of the bound's affine map on the operand list yields a constant.
- Update/complete 'for' stmt's API to set lower/upper bounds with operands.
Resolve TODOs for ForStmt::set{Lower,Upper}Bound.
- Moved AffineExprConstantFolder into AffineMap.cpp and added
AffineMap::constantFold to be used by both AffineApplyOp and
ForStmt::constantFoldBound.
PiperOrigin-RevId: 215997346
- makes the code compact (gets rid of MLFunction walking logic)
- makes it natural to extend to fold affine map loop bounds
and if conditions (upcoming CL)
PiperOrigin-RevId: 214668957
verifier. We get most of this infrastructure directly from LLVM, we just
need to adapt it to our CFG abstraction.
This has a few unrelated changes engangled in it:
- getFunction() in various classes was const incorrect, fix it.
- This moves Verifier.cpp to the analysis library, since Verifier depends on
dominance and these are both really analyses.
- IndexedAccessorIterator::reference was defined wrong, leading to really
exciting template errors that were fun to diagnose.
- This flips the boolean sense of the foldOperation() function in constant
folding pass in response to previous patch feedback.
PiperOrigin-RevId: 214046593
optimization pass:
- Give the ability for operations to implement a constantFold hook (a simple
one for single-result ops as well as general support for multi-result ops).
- Implement folding support for constant and addf.
- Implement support in AbstractOperation and Operation to make this usable by
clients.
- Implement a very simple constant folding pass that does top down folding on
CFG and ML functions, with a testcase that exercises all the above stuff.
Random cleanups:
- Improve the build APIs for ConstantOp.
- Stop passing "-o -" to mlir-opt in the testsuite, since that is the default.
PiperOrigin-RevId: 213749809
