Files
clang-p2996/mlir/test/lib/Dialect/Math/TestExpandMath.cpp
Ramiro Leal-Cavazos 44baa65589 Revert "Revert "Fix handling of special and large vals in expand pattern for round" and "Add pattern that expands math.roundeven into math.round + arith""
This reverts commit 87cef78fa1.

The issue in the original revert is that a lit test expecting a `-nan`
as an output was failing on M2. Since the IEEE 754-2008 standard does
not require the sign to be printed when displaying a `nan`, this
commit changes the `CHECK` for `-nan` to one that checks the result
value bitcasted to an `i32` to ensure that input is being left
unchanged. This check should now be independent of platform being used
to run test.

Reviewed By: jpienaar, mehdi_amini

Differential Revision: https://reviews.llvm.org/D148941
2023-04-22 07:15:40 -07:00

57 lines
2.0 KiB
C++

//===- TestExpandMath.cpp - Test expand math op into exp form -------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains test passes for expanding math operations.
//
//===----------------------------------------------------------------------===//
#include "mlir/Dialect/Arith/IR/Arith.h"
#include "mlir/Dialect/Math/Transforms/Passes.h"
#include "mlir/Dialect/SCF/IR/SCF.h"
#include "mlir/Dialect/Vector/IR/VectorOps.h"
#include "mlir/Pass/Pass.h"
#include "mlir/Transforms/GreedyPatternRewriteDriver.h"
using namespace mlir;
namespace {
struct TestExpandMathPass
: public PassWrapper<TestExpandMathPass, OperationPass<>> {
MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestExpandMathPass)
void runOnOperation() override;
StringRef getArgument() const final { return "test-expand-math"; }
void getDependentDialects(DialectRegistry &registry) const override {
registry
.insert<arith::ArithDialect, scf::SCFDialect, vector::VectorDialect>();
}
StringRef getDescription() const final { return "Test expanding math"; }
};
} // namespace
void TestExpandMathPass::runOnOperation() {
RewritePatternSet patterns(&getContext());
populateExpandCtlzPattern(patterns);
populateExpandExp2FPattern(patterns);
populateExpandTanPattern(patterns);
populateExpandTanhPattern(patterns);
populateExpandFmaFPattern(patterns);
populateExpandFloorFPattern(patterns);
populateExpandCeilFPattern(patterns);
populateExpandPowFPattern(patterns);
populateExpandRoundFPattern(patterns);
populateExpandRoundEvenPattern(patterns);
(void)applyPatternsAndFoldGreedily(getOperation(), std::move(patterns));
}
namespace mlir {
namespace test {
void registerTestExpandMathPass() { PassRegistration<TestExpandMathPass>(); }
} // namespace test
} // namespace mlir