[Mlir-commits] [mlir] [mlir] Implement inferResultRanges for vector.step op (PR #151536)
llvmlistbot at llvm.org
llvmlistbot at llvm.org
Thu Jul 31 09:31:05 PDT 2025
https://github.com/Max191 updated https://github.com/llvm/llvm-project/pull/151536
>From ff1cac21afcf4e981baeac7306c3296849070994 Mon Sep 17 00:00:00 2001
From: Max Dawkins <max.dawkins at gmail.com>
Date: Thu, 31 Jul 2025 15:11:49 +0000
Subject: [PATCH] [mlir] Implement inferResultRanges for vector.step op
Signed-off-by: Max Dawkins <max.dawkins at gmail.com>
---
.../include/mlir/Dialect/Vector/IR/VectorOps.td | 5 ++++-
mlir/lib/Dialect/Vector/IR/VectorOps.cpp | 17 +++++++++++++++++
.../Dialect/Vector/int-range-interface.mlir | 8 ++++++++
3 files changed, 29 insertions(+), 1 deletion(-)
diff --git a/mlir/include/mlir/Dialect/Vector/IR/VectorOps.td b/mlir/include/mlir/Dialect/Vector/IR/VectorOps.td
index 3885439e11f89..1d9a9d3f699ac 100644
--- a/mlir/include/mlir/Dialect/Vector/IR/VectorOps.td
+++ b/mlir/include/mlir/Dialect/Vector/IR/VectorOps.td
@@ -2876,7 +2876,10 @@ def Vector_ScanOp :
// VectorStepOp
//===----------------------------------------------------------------------===//
-def Vector_StepOp : Vector_Op<"step", [Pure]> {
+def Vector_StepOp : Vector_Op<"step", [
+ Pure,
+ DeclareOpInterfaceMethods<InferIntRangeInterface, ["inferResultRanges"]>
+ ]> {
let summary = "A linear sequence of values from 0 to N";
let description = [{
A `step` operation produces an index vector, i.e. a 1-D vector of values of
diff --git a/mlir/lib/Dialect/Vector/IR/VectorOps.cpp b/mlir/lib/Dialect/Vector/IR/VectorOps.cpp
index 8789f55707267..83f3d8e65b785 100644
--- a/mlir/lib/Dialect/Vector/IR/VectorOps.cpp
+++ b/mlir/lib/Dialect/Vector/IR/VectorOps.cpp
@@ -7197,6 +7197,23 @@ Value mlir::vector::makeArithReduction(OpBuilder &b, Location loc,
return selectPassthru(b, mask, result, acc);
}
+//===----------------------------------------------------------------------===//
+// StepOp
+//===----------------------------------------------------------------------===//
+
+void StepOp::inferResultRanges(ArrayRef<ConstantIntRanges> argRanges,
+ SetIntRangeFn setResultRanges) {
+ auto resultType = cast<VectorType>(getType());
+ if (resultType.isScalable()) {
+ return;
+ }
+ unsigned bitwidth = ConstantIntRanges::getStorageBitwidth(resultType);
+ APInt zero(bitwidth, 0);
+ APInt high(bitwidth, resultType.getDimSize(0) - 1);
+ ConstantIntRanges result = {zero, high, zero, high};
+ setResultRanges(getResult(), result);
+}
+
//===----------------------------------------------------------------------===//
// Vector Masking Utilities
//===----------------------------------------------------------------------===//
diff --git a/mlir/test/Dialect/Vector/int-range-interface.mlir b/mlir/test/Dialect/Vector/int-range-interface.mlir
index 2563b48cdd506..c60c21fadb668 100644
--- a/mlir/test/Dialect/Vector/int-range-interface.mlir
+++ b/mlir/test/Dialect/Vector/int-range-interface.mlir
@@ -99,3 +99,11 @@ func.func @test_vector_extsi() -> vector<2xi32> {
%2 = test.reflect_bounds %1 : vector<2xi32>
func.return %2 : vector<2xi32>
}
+
+// CHECK-LABEL: func @vector_step
+// CHECK: test.reflect_bounds {smax = 7 : index, smin = 0 : index, umax = 7 : index, umin = 0 : index}
+func.func @vector_step() -> vector<8xindex> {
+ %0 = vector.step : vector<8xindex>
+ %1 = test.reflect_bounds %0 : vector<8xindex>
+ func.return %1 : vector<8xindex>
+}
More information about the Mlir-commits
mailing list