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VectorTest.cpp
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/*******************************************************************************
* Copyright (c) 2017, 2021 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at http://eclipse.org/legal/epl-2.0
* or the Apache License, Version 2.0 which accompanies this distribution
* and is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License, v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception [1] and GNU General Public
* License, version 2 with the OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
#include "JitTest.hpp"
#include "default_compiler.hpp"
class VectorTest : public TRTest::JitTest {};
TEST_F(VectorTest, VDoubleAdd) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorDouble offset=0 "
" (aload parm=0) "
" (vadd "
" (vloadi type=VectorDouble (aload parm=1)) "
" (vloadi type=VectorDouble (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(double[],double[],double[])>();
// This test currently assumes 128bit SIMD
double output[] = {0.0, 0.0};
double inputA[] = {1.0, 2.0};
double inputB[] = {1.0, 2.0};
entry_point(output,inputA,inputB);
EXPECT_DOUBLE_EQ(inputA[0] + inputB[0], output[0]); // Epsilon = 4ULP -- is this necessary?
EXPECT_DOUBLE_EQ(inputA[1] + inputB[1], output[1]); // Epsilon = 4ULP -- is this necessary?
}
TEST_F(VectorTest, VInt8Add) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorInt8 offset=0 "
" (aload parm=0) "
" (vadd "
" (vloadi type=VectorInt8 (aload parm=1)) "
" (vloadi type=VectorInt8 (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
SKIP_ON_POWER(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(int8_t[],int8_t[],int8_t[])>();
// This test currently assumes 128bit SIMD
int8_t output[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
int8_t inputA[] = {7, 6, 5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5, -6, -7, 7};
int8_t inputB[] = {-14, -12, -10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10, 12, 14, 1};
entry_point(output,inputA,inputB);
for (int i = 0; i < (sizeof(output) / sizeof(*output)); i++) {
EXPECT_EQ(inputA[i] + inputB[i], output[i]);
}
}
TEST_F(VectorTest, VInt16Add) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorInt16 offset=0 "
" (aload parm=0) "
" (vadd "
" (vloadi type=VectorInt16 (aload parm=1)) "
" (vloadi type=VectorInt16 (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
SKIP_ON_POWER(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(int16_t[],int16_t[],int16_t[])>();
// This test currently assumes 128bit SIMD
int16_t output[] = {0, 0, 0, 0, 0, 0, 0, 0};
int16_t inputA[] = {60, 45, 30, 0, -3, -2, -1, 2};
int16_t inputB[] = {-5, -10, -1, 13, 15, 10, 7, 5};
entry_point(output,inputA,inputB);
for (int i = 0; i < (sizeof(output) / sizeof(*output)); i++) {
EXPECT_EQ(inputA[i] + inputB[i], output[i]);
}
}
TEST_F(VectorTest, VFloatAdd) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorFloat offset=0 "
" (aload parm=0) "
" (vadd "
" (vloadi type=VectorFloat (aload parm=1)) "
" (vloadi type=VectorFloat (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(float[],float[],float[])>();
// This test currently assumes 128bit SIMD
float output[] = {0.0f, 0.0f, 0.0f, 0.0f};
float inputA[] = {6.0f, 0.0f, -0.1f, 0.6f};
float inputB[] = {-0.5f, 3.5f, 3.0f, 0.7f};
entry_point(output,inputA,inputB);
for (int i = 0; i < (sizeof(output) / sizeof(*output)); i++) {
EXPECT_FLOAT_EQ(inputA[i] + inputB[i], output[i]); // Epsilon = 4ULP -- is this necessary?
}
}
TEST_F(VectorTest, VInt8Sub) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorInt8 offset=0 "
" (aload parm=0) "
" (vsub "
" (vloadi type=VectorInt8 (aload parm=1)) "
" (vloadi type=VectorInt8 (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
SKIP_ON_POWER(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(int8_t[],int8_t[],int8_t[])>();
// This test currently assumes 128bit SIMD
int8_t output[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
int8_t inputA[] = {7, 6, 5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5, -6, -7, 9};
int8_t inputB[] = {14, 12, 10, 8, 6, 4, 2, 0, -2, -4, -6, -8, -10, -12, -14, 1};
entry_point(output,inputA,inputB);
for (int i = 0; i < (sizeof(output) / sizeof(*output)); i++) {
EXPECT_EQ(inputA[i] - inputB[i], output[i]);
}
}
TEST_F(VectorTest, VInt16Sub) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorInt16 offset=0 "
" (aload parm=0) "
" (vsub "
" (vloadi type=VectorInt16 (aload parm=1)) "
" (vloadi type=VectorInt16 (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
SKIP_ON_POWER(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(int16_t[],int16_t[],int16_t[])>();
// This test currently assumes 128bit SIMD
int16_t output[] = {0, 0, 0, 0, 0, 0, 0, 0};
int16_t inputA[] = {60, 45, 30, 0, -3, -2, -1, 9};
int16_t inputB[] = {5, 10, 1, -13, -15, -10, -7, 2};
entry_point(output,inputA,inputB);
for (int i = 0; i < (sizeof(output) / sizeof(*output)); i++) {
EXPECT_EQ(inputA[i] - inputB[i], output[i]);
}
}
TEST_F(VectorTest, VFloatSub) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorFloat offset=0 "
" (aload parm=0) "
" (vsub "
" (vloadi type=VectorFloat (aload parm=1)) "
" (vloadi type=VectorFloat (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(float[],float[],float[])>();
// This test currently assumes 128bit SIMD
float output[] = {0.0f, 0.0f, 0.0f, 0.0f};
float inputA[] = {6.0f, 0.0f, -0.1f, 2.0f};
float inputB[] = {0.5f, -3.5f, -3.0f, 0.7f};
entry_point(output,inputA,inputB);
for (int i = 0; i < (sizeof(output) / sizeof(*output)); i++) {
EXPECT_FLOAT_EQ(inputA[i] - inputB[i], output[i]); // Epsilon = 4ULP -- is this necessary?
}
}
TEST_F(VectorTest, VDoubleSub) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorDouble offset=0 "
" (aload parm=0) "
" (vsub "
" (vloadi type=VectorDouble (aload parm=1)) "
" (vloadi type=VectorDouble (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(double[],double[],double[])>();
// This test currently assumes 128bit SIMD
double output[] = {0.0, 0.0};
double inputA[] = {1.0, -1.5};
double inputB[] = {1.1, -3.0};
entry_point(output,inputA,inputB);
EXPECT_DOUBLE_EQ(inputA[0] - inputB[0], output[0]); // Epsilon = 4ULP -- is this necessary?
EXPECT_DOUBLE_EQ(inputA[1] - inputB[1], output[1]); // Epsilon = 4ULP -- is this necessary?
}
TEST_F(VectorTest, VInt8Mul) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorInt8 offset=0 "
" (aload parm=0) "
" (vmul "
" (vloadi type=VectorInt8 (aload parm=1)) "
" (vloadi type=VectorInt8 (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
SKIP_ON_POWER(MissingImplementation);
SKIP_ON_X86(MissingImplementation);
SKIP_ON_HAMMER(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(int8_t[],int8_t[],int8_t[])>();
// This test currently assumes 128bit SIMD
int8_t output[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
int8_t inputA[] = {7, 6, 5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5, -6, -7, 7};
int8_t inputB[] = {-14, -12, -10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10, 12, -14, 1};
entry_point(output,inputA,inputB);
for (int i = 0; i < (sizeof(output) / sizeof(*output)); i++) {
EXPECT_EQ(inputA[i] * inputB[i], output[i]);
}
}
TEST_F(VectorTest, VInt16Mul) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorInt16 offset=0 "
" (aload parm=0) "
" (vmul "
" (vloadi type=VectorInt16 (aload parm=1)) "
" (vloadi type=VectorInt16 (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
SKIP_ON_POWER(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(int16_t[],int16_t[],int16_t[])>();
// This test currently assumes 128bit SIMD
int16_t output[] = {0, 0, 0, 0, 0, 0, 0, 0};
int16_t inputA[] = {60, 45, 30, 0, -3, -2, -1, 2};
int16_t inputB[] = {-5, -10, -1, 13, 15, 10, -7, 5};
entry_point(output,inputA,inputB);
for (int i = 0; i < (sizeof(output) / sizeof(*output)); i++) {
EXPECT_EQ(inputA[i] * inputB[i], output[i]);
}
}
TEST_F(VectorTest, VFloatMul) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorFloat offset=0 "
" (aload parm=0) "
" (vmul "
" (vloadi type=VectorFloat (aload parm=1)) "
" (vloadi type=VectorFloat (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(float[],float[],float[])>();
// This test currently assumes 128bit SIMD
float output[] = {0.0f, 0.0f, 0.0f, 0.0f};
float inputA[] = {6.0f, 0.0f, -0.1f, 0.6f};
float inputB[] = {-0.5f, 3.5f, -3.0f, 0.7f};
entry_point(output,inputA,inputB);
for (int i = 0; i < (sizeof(output) / sizeof(*output)); i++) {
EXPECT_FLOAT_EQ(inputA[i] * inputB[i], output[i]); // Epsilon = 4ULP -- is this necessary?
}
}
TEST_F(VectorTest, VDoubleMul) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorDouble offset=0 "
" (aload parm=0) "
" (vmul "
" (vloadi type=VectorDouble (aload parm=1)) "
" (vloadi type=VectorDouble (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(double[],double[],double[])>();
// This test currently assumes 128bit SIMD
double output[] = {0.0, 0.0};
double inputA[] = {1.0, -1.5};
double inputB[] = {-1.1, -3.0};
entry_point(output,inputA,inputB);
EXPECT_DOUBLE_EQ(inputA[0] * inputB[0], output[0]); // Epsilon = 4ULP -- is this necessary?
EXPECT_DOUBLE_EQ(inputA[1] * inputB[1], output[1]); // Epsilon = 4ULP -- is this necessary?
}
TEST_F(VectorTest, VFloatDiv) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorFloat offset=0 "
" (aload parm=0) "
" (vdiv "
" (vloadi type=VectorFloat (aload parm=1)) "
" (vloadi type=VectorFloat (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(float[],float[],float[])>();
// This test currently assumes 128bit SIMD
float output[] = {0.0f, 0.0f, 0.0f, 0.0f};
float inputA[] = {6.0f, 0.0f, -9.0f, 0.6f};
float inputB[] = {-0.5f, 3.5f, -3.0f, 0.7f};
entry_point(output,inputA,inputB);
for (int i = 0; i < (sizeof(output) / sizeof(*output)); i++) {
EXPECT_FLOAT_EQ(inputA[i] / inputB[i], output[i]); // Epsilon = 4ULP -- is this necessary?
}
}
TEST_F(VectorTest, VDoubleDiv) {
auto inputTrees = "(method return= NoType args=[Address,Address,Address] "
" (block "
" (vstorei type=VectorDouble offset=0 "
" (aload parm=0) "
" (vdiv "
" (vloadi type=VectorDouble (aload parm=1)) "
" (vloadi type=VectorDouble (aload parm=2)))) "
" (return))) ";
auto trees = parseString(inputTrees);
ASSERT_NOTNULL(trees);
//TODO: Re-enable this test on S390 after issue #1843 is resolved.
SKIP_ON_S390(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_S390X(KnownBug) << "This test is currently disabled on Z platforms because not all Z platforms have vector support (issue #1843)";
SKIP_ON_RISCV(MissingImplementation);
Tril::DefaultCompiler compiler(trees);
ASSERT_EQ(0, compiler.compile()) << "Compilation failed unexpectedly\n" << "Input trees: " << inputTrees;
auto entry_point = compiler.getEntryPoint<void (*)(double[],double[],double[])>();
// This test currently assumes 128bit SIMD
double output[] = {0.0, 0.0};
double inputA[] = {12.0, -1.5};
double inputB[] = {-4.0, -3.0};
entry_point(output,inputA,inputB);
EXPECT_DOUBLE_EQ(inputA[0] / inputB[0], output[0]); // Epsilon = 4ULP -- is this necessary?
EXPECT_DOUBLE_EQ(inputA[1] / inputB[1], output[1]); // Epsilon = 4ULP -- is this necessary?
}