9cb10296ec
Summary:
Fixed build of D81618
Add a pattern for expanding tanh op into exp form.
A `tanh` is expanded into:
1) 1-exp^{-2x} / 1+exp^{-2x}, if x => 0
2) exp^{2x}-1 / exp^{2x}+1 , if x < 0.
Differential Revision: https://reviews.llvm.org/D82040
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
//===- TestExpandTanh.cpp - Test expand tanh 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 tanh.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Dialect/StandardOps/Transforms/Passes.h"
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#include "mlir/IR/PatternMatch.h"
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#include "mlir/Pass/Pass.h"
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using namespace mlir;
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namespace {
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struct TestExpandTanhPass
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: public PassWrapper<TestExpandTanhPass, FunctionPass> {
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void runOnFunction() override;
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};
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} // end anonymous namespace
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void TestExpandTanhPass::runOnFunction() {
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OwningRewritePatternList patterns;
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populateExpandTanhPattern(patterns, &getContext());
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applyPatternsAndFoldGreedily(getOperation(), patterns);
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}
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namespace mlir {
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void registerTestExpandTanhPass() {
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PassRegistration<TestExpandTanhPass> pass("test-expand-tanh",
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"Test expanding tanh");
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}
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} // namespace mlir
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