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[mlir][IntegerRangeAnalysis] expose maybeReplaceWithConstant #133151

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Merged
merged 1 commit into from
Mar 26, 2025
Merged

[mlir][IntegerRangeAnalysis] expose maybeReplaceWithConstant #133151

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4 changes: 4 additions & 0 deletions mlir/include/mlir/Analysis/DataFlow/IntegerRangeAnalysis.h
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@
#include "mlir/Interfaces/InferIntRangeInterface.h"

namespace mlir {
class RewriterBase;
namespace dataflow {

/// This lattice element represents the integer value range of an SSA value.
Expand Down Expand Up @@ -83,6 +84,9 @@ LogicalResult staticallyNonNegative(DataFlowSolver &solver, Operation *op);
/// to use a non-64-bit index.
LogicalResult staticallyNonNegative(DataFlowSolver &solver, Value v);

LogicalResult maybeReplaceWithConstant(DataFlowSolver &solver,
RewriterBase &rewriter, Value value);

} // end namespace dataflow
} // end namespace mlir

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7 changes: 4 additions & 3 deletions mlir/lib/Dialect/Arith/Transforms/IntRangeOptimizations.cpp
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Expand Up @@ -57,10 +57,10 @@ static void copyIntegerRange(DataFlowSolver &solver, Value oldVal,
*oldState);
}

namespace mlir::dataflow {
/// Patterned after SCCP
static LogicalResult maybeReplaceWithConstant(DataFlowSolver &solver,
PatternRewriter &rewriter,
Value value) {
LogicalResult maybeReplaceWithConstant(DataFlowSolver &solver,
RewriterBase &rewriter, Value value) {
if (value.use_empty())
return failure();
std::optional<APInt> maybeConstValue = getMaybeConstantValue(solver, value);
Expand Down Expand Up @@ -95,6 +95,7 @@ static LogicalResult maybeReplaceWithConstant(DataFlowSolver &solver,
rewriter.replaceAllUsesWith(value, constOp->getResult(0));
return success();
}
} // namespace mlir::dataflow

namespace {
class DataFlowListener : public RewriterBase::Listener {
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