forked from OSchip/llvm-project
149 lines
4.4 KiB
C++
149 lines
4.4 KiB
C++
//===- AttributeTest.cpp - Attribute unit tests ---------------------------===//
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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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#include "mlir/IR/Attributes.h"
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#include "mlir/IR/StandardTypes.h"
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#include "gtest/gtest.h"
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using namespace mlir;
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using namespace mlir::detail;
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template <typename EltTy>
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static void testSplat(Type eltType, const EltTy &splatElt) {
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VectorType shape = VectorType::get({2, 1}, eltType);
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// Check that the generated splat is the same for 1 element and N elements.
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DenseElementsAttr splat = DenseElementsAttr::get(shape, splatElt);
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EXPECT_TRUE(splat.isSplat());
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auto detectedSplat =
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DenseElementsAttr::get(shape, llvm::makeArrayRef({splatElt, splatElt}));
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EXPECT_EQ(detectedSplat, splat);
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}
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namespace {
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TEST(DenseSplatTest, BoolSplat) {
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MLIRContext context;
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IntegerType boolTy = IntegerType::get(1, &context);
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VectorType shape = VectorType::get({2, 2}, boolTy);
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// Check that splat is automatically detected for boolean values.
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/// True.
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DenseElementsAttr trueSplat = DenseElementsAttr::get(shape, true);
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EXPECT_TRUE(trueSplat.isSplat());
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/// False.
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DenseElementsAttr falseSplat = DenseElementsAttr::get(shape, false);
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EXPECT_TRUE(falseSplat.isSplat());
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EXPECT_NE(falseSplat, trueSplat);
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/// Detect and handle splat within 8 elements (bool values are bit-packed).
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/// True.
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auto detectedSplat = DenseElementsAttr::get(shape, {true, true, true, true});
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EXPECT_EQ(detectedSplat, trueSplat);
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/// False.
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detectedSplat = DenseElementsAttr::get(shape, {false, false, false, false});
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EXPECT_EQ(detectedSplat, falseSplat);
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}
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TEST(DenseSplatTest, LargeBoolSplat) {
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constexpr int64_t boolCount = 56;
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MLIRContext context;
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IntegerType boolTy = IntegerType::get(1, &context);
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VectorType shape = VectorType::get({boolCount}, boolTy);
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// Check that splat is automatically detected for boolean values.
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/// True.
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DenseElementsAttr trueSplat = DenseElementsAttr::get(shape, true);
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DenseElementsAttr falseSplat = DenseElementsAttr::get(shape, false);
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EXPECT_TRUE(trueSplat.isSplat());
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EXPECT_TRUE(falseSplat.isSplat());
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/// Detect that the large boolean arrays are properly splatted.
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/// True.
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SmallVector<bool, 64> trueValues(boolCount, true);
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auto detectedSplat = DenseElementsAttr::get(shape, trueValues);
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EXPECT_EQ(detectedSplat, trueSplat);
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/// False.
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SmallVector<bool, 64> falseValues(boolCount, false);
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detectedSplat = DenseElementsAttr::get(shape, falseValues);
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EXPECT_EQ(detectedSplat, falseSplat);
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}
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TEST(DenseSplatTest, BoolNonSplat) {
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MLIRContext context;
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IntegerType boolTy = IntegerType::get(1, &context);
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VectorType shape = VectorType::get({6}, boolTy);
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// Check that we properly handle non-splat values.
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DenseElementsAttr nonSplat =
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DenseElementsAttr::get(shape, {false, false, true, false, false, true});
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EXPECT_FALSE(nonSplat.isSplat());
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}
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TEST(DenseSplatTest, OddIntSplat) {
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// Test detecting a splat with an odd(non 8-bit) integer bitwidth.
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MLIRContext context;
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constexpr size_t intWidth = 19;
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IntegerType intTy = IntegerType::get(intWidth, &context);
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APInt value(intWidth, 10);
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testSplat(intTy, value);
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}
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TEST(DenseSplatTest, Int32Splat) {
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MLIRContext context;
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IntegerType intTy = IntegerType::get(32, &context);
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int value = 64;
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testSplat(intTy, value);
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}
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TEST(DenseSplatTest, IntAttrSplat) {
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MLIRContext context;
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IntegerType intTy = IntegerType::get(85, &context);
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Attribute value = IntegerAttr::get(intTy, 109);
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testSplat(intTy, value);
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}
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TEST(DenseSplatTest, F32Splat) {
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MLIRContext context;
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FloatType floatTy = FloatType::getF32(&context);
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float value = 10.0;
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testSplat(floatTy, value);
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}
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TEST(DenseSplatTest, F64Splat) {
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MLIRContext context;
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FloatType floatTy = FloatType::getF64(&context);
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double value = 10.0;
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testSplat(floatTy, APFloat(value));
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}
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TEST(DenseSplatTest, FloatAttrSplat) {
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MLIRContext context;
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FloatType floatTy = FloatType::getBF16(&context);
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Attribute value = FloatAttr::get(floatTy, 10.0);
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testSplat(floatTy, value);
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}
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TEST(DenseSplatTest, BF16Splat) {
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MLIRContext context;
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FloatType floatTy = FloatType::getBF16(&context);
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// Note: We currently use double to represent bfloat16.
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double value = 10.0;
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testSplat(floatTy, value);
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}
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} // end namespace
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