blob: 1a50ca2e6ba3ee0be6beb1c13e20a499b0db5c84 [file] [log] [blame]
//===-- Template for diffing remquo results ---------------------*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "utils/FPUtil/FPBits.h"
#include <math.h>
#include <stddef.h>
#include <stdint.h>
template <typename T> using RemQuoFunc = T (*)(T, T, int *);
template <typename T>
void RemQuoDiff(RemQuoFunc<T> func1, RemQuoFunc<T> func2, const uint8_t *data,
size_t size) {
constexpr size_t typeSize = sizeof(T);
if (size < 2 * typeSize)
T x = *reinterpret_cast<const T *>(data);
T y = *reinterpret_cast<const T *>(data + typeSize);
int q1, q2;
T remainder1 = func1(x, y, &q1);
T remainder2 = func2(x, y, &q2);
if (isnan(remainder1)) {
if (!isnan(remainder2))
if (isinf(remainder2) != isinf(remainder1))
// Compare only the 3 LS bits of the quotient.
if ((q1 & 0x7) != (q2 & 0x7))
__llvm_libc::fputil::FPBits<T> bits1(remainder1);
__llvm_libc::fputil::FPBits<T> bits2(remainder2);
if (bits1.uintval() != bits2.uintval())