4da96515ea
Exp2 functions are pushed directly to libm. This is problematic for situations where libm is not available. This patch will expand the exp2 function to use exp2 with the input multiplied by ln2 (natural log). Reviewed By: rsuderman Differential Revision: https://reviews.llvm.org/D148064
54 lines
1.9 KiB
C++
54 lines
1.9 KiB
C++
//===- TestExpandMath.cpp - Test expand math op into exp form -------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains test passes for expanding math operations.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Dialect/Arith/IR/Arith.h"
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#include "mlir/Dialect/Math/Transforms/Passes.h"
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#include "mlir/Dialect/SCF/IR/SCF.h"
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#include "mlir/Dialect/Vector/IR/VectorOps.h"
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#include "mlir/Pass/Pass.h"
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#include "mlir/Transforms/GreedyPatternRewriteDriver.h"
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using namespace mlir;
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namespace {
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struct TestExpandMathPass
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: public PassWrapper<TestExpandMathPass, OperationPass<>> {
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MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestExpandMathPass)
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void runOnOperation() override;
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StringRef getArgument() const final { return "test-expand-math"; }
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void getDependentDialects(DialectRegistry ®istry) const override {
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registry
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.insert<arith::ArithDialect, scf::SCFDialect, vector::VectorDialect>();
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}
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StringRef getDescription() const final { return "Test expanding math"; }
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};
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} // namespace
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void TestExpandMathPass::runOnOperation() {
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RewritePatternSet patterns(&getContext());
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populateExpandCtlzPattern(patterns);
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populateExpandExp2FPattern(patterns);
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populateExpandTanPattern(patterns);
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populateExpandTanhPattern(patterns);
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populateExpandFmaFPattern(patterns);
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populateExpandFloorFPattern(patterns);
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populateExpandCeilFPattern(patterns);
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(void)applyPatternsAndFoldGreedily(getOperation(), std::move(patterns));
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}
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namespace mlir {
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namespace test {
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void registerTestExpandMathPass() { PassRegistration<TestExpandMathPass>(); }
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} // namespace test
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} // namespace mlir
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