mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2025-04-08 02:31:41 +00:00
83 lines
3.1 KiB
C++
83 lines
3.1 KiB
C++
//===- llvm/unittest/Support/ScaledNumberTest.cpp - ScaledPair tests -----==//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/ScaledNumber.h"
|
|
|
|
#include "llvm/Support/DataTypes.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
using namespace llvm;
|
|
using namespace llvm::ScaledNumbers;
|
|
|
|
namespace {
|
|
|
|
template <class UIntT> struct ScaledPair {
|
|
UIntT D;
|
|
int S;
|
|
ScaledPair(const std::pair<UIntT, int16_t> &F) : D(F.first), S(F.second) {}
|
|
ScaledPair(UIntT D, int S) : D(D), S(S) {}
|
|
|
|
bool operator==(const ScaledPair<UIntT> &X) const {
|
|
return D == X.D && S == X.S;
|
|
}
|
|
};
|
|
template <class UIntT>
|
|
bool operator==(const std::pair<UIntT, int16_t> &L,
|
|
const ScaledPair<UIntT> &R) {
|
|
return ScaledPair<UIntT>(L) == R;
|
|
}
|
|
template <class UIntT>
|
|
void PrintTo(const ScaledPair<UIntT> &F, ::std::ostream *os) {
|
|
*os << F.D << "*2^" << F.S;
|
|
}
|
|
|
|
typedef ScaledPair<uint32_t> SP32;
|
|
typedef ScaledPair<uint64_t> SP64;
|
|
|
|
TEST(ScaledNumberHelpersTest, getRounded) {
|
|
EXPECT_EQ(getRounded32(0, 0, false), SP32(0, 0));
|
|
EXPECT_EQ(getRounded32(0, 0, true), SP32(1, 0));
|
|
EXPECT_EQ(getRounded32(20, 21, true), SP32(21, 21));
|
|
EXPECT_EQ(getRounded32(UINT32_MAX, 0, false), SP32(UINT32_MAX, 0));
|
|
EXPECT_EQ(getRounded32(UINT32_MAX, 0, true), SP32(1 << 31, 1));
|
|
|
|
EXPECT_EQ(getRounded64(0, 0, false), SP64(0, 0));
|
|
EXPECT_EQ(getRounded64(0, 0, true), SP64(1, 0));
|
|
EXPECT_EQ(getRounded64(20, 21, true), SP64(21, 21));
|
|
EXPECT_EQ(getRounded64(UINT32_MAX, 0, false), SP64(UINT32_MAX, 0));
|
|
EXPECT_EQ(getRounded64(UINT32_MAX, 0, true), SP64(UINT64_C(1) << 32, 0));
|
|
EXPECT_EQ(getRounded64(UINT64_MAX, 0, false), SP64(UINT64_MAX, 0));
|
|
EXPECT_EQ(getRounded64(UINT64_MAX, 0, true), SP64(UINT64_C(1) << 63, 1));
|
|
}
|
|
|
|
TEST(FloatsTest, getAdjusted) {
|
|
const uint64_t Max32In64 = UINT32_MAX;
|
|
EXPECT_EQ(getAdjusted32(0), SP32(0, 0));
|
|
EXPECT_EQ(getAdjusted32(0, 5), SP32(0, 5));
|
|
EXPECT_EQ(getAdjusted32(UINT32_MAX), SP32(UINT32_MAX, 0));
|
|
EXPECT_EQ(getAdjusted32(Max32In64 << 1), SP32(UINT32_MAX, 1));
|
|
EXPECT_EQ(getAdjusted32(Max32In64 << 1, 1), SP32(UINT32_MAX, 2));
|
|
EXPECT_EQ(getAdjusted32(Max32In64 << 31), SP32(UINT32_MAX, 31));
|
|
EXPECT_EQ(getAdjusted32(Max32In64 << 32), SP32(UINT32_MAX, 32));
|
|
EXPECT_EQ(getAdjusted32(Max32In64 + 1), SP32(1u << 31, 1));
|
|
EXPECT_EQ(getAdjusted32(UINT64_MAX), SP32(1u << 31, 33));
|
|
|
|
EXPECT_EQ(getAdjusted64(0), SP64(0, 0));
|
|
EXPECT_EQ(getAdjusted64(0, 5), SP64(0, 5));
|
|
EXPECT_EQ(getAdjusted64(UINT32_MAX), SP64(UINT32_MAX, 0));
|
|
EXPECT_EQ(getAdjusted64(Max32In64 << 1), SP64(Max32In64 << 1, 0));
|
|
EXPECT_EQ(getAdjusted64(Max32In64 << 1, 1), SP64(Max32In64 << 1, 1));
|
|
EXPECT_EQ(getAdjusted64(Max32In64 << 31), SP64(Max32In64 << 31, 0));
|
|
EXPECT_EQ(getAdjusted64(Max32In64 << 32), SP64(Max32In64 << 32, 0));
|
|
EXPECT_EQ(getAdjusted64(Max32In64 + 1), SP64(Max32In64 + 1, 0));
|
|
EXPECT_EQ(getAdjusted64(UINT64_MAX), SP64(UINT64_MAX, 0));
|
|
}
|
|
|
|
} // end namespace
|