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508 lines
17 KiB
508 lines
17 KiB
// AsmJit - Machine code generation for C++
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//
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// * Official AsmJit Home Page: https://asmjit.com
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// * Official Github Repository: https://github.com/asmjit/asmjit
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//
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// Copyright (c) 2008-2020 The AsmJit Authors
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would be
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// appreciated but is not required.
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// 2. Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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// 3. This notice may not be removed or altered from any source distribution.
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#include "../core/api-build_p.h"
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#include "../core/support.h"
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ASMJIT_BEGIN_NAMESPACE
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// ============================================================================
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// [asmjit::Support - Unit]
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// ============================================================================
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#if defined(ASMJIT_TEST)
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template<typename T>
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static void testArrays(const T* a, const T* b, size_t size) noexcept {
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for (size_t i = 0; i < size; i++)
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EXPECT(a[i] == b[i], "Mismatch at %u", unsigned(i));
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}
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static void testAlignment() noexcept {
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INFO("Support::isAligned()");
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EXPECT(Support::isAligned<size_t>(0xFFFF, 4) == false);
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EXPECT(Support::isAligned<size_t>(0xFFF4, 4) == true);
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EXPECT(Support::isAligned<size_t>(0xFFF8, 8) == true);
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EXPECT(Support::isAligned<size_t>(0xFFF0, 16) == true);
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INFO("Support::alignUp()");
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EXPECT(Support::alignUp<size_t>(0xFFFF, 4) == 0x10000);
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EXPECT(Support::alignUp<size_t>(0xFFF4, 4) == 0x0FFF4);
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EXPECT(Support::alignUp<size_t>(0xFFF8, 8) == 0x0FFF8);
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EXPECT(Support::alignUp<size_t>(0xFFF0, 16) == 0x0FFF0);
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EXPECT(Support::alignUp<size_t>(0xFFF0, 32) == 0x10000);
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INFO("Support::alignUpDiff()");
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EXPECT(Support::alignUpDiff<size_t>(0xFFFF, 4) == 1);
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EXPECT(Support::alignUpDiff<size_t>(0xFFF4, 4) == 0);
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EXPECT(Support::alignUpDiff<size_t>(0xFFF8, 8) == 0);
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EXPECT(Support::alignUpDiff<size_t>(0xFFF0, 16) == 0);
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EXPECT(Support::alignUpDiff<size_t>(0xFFF0, 32) == 16);
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INFO("Support::alignUpPowerOf2()");
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EXPECT(Support::alignUpPowerOf2<size_t>(0x0000) == 0x00000);
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EXPECT(Support::alignUpPowerOf2<size_t>(0xFFFF) == 0x10000);
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EXPECT(Support::alignUpPowerOf2<size_t>(0xF123) == 0x10000);
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EXPECT(Support::alignUpPowerOf2<size_t>(0x0F00) == 0x01000);
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EXPECT(Support::alignUpPowerOf2<size_t>(0x0100) == 0x00100);
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EXPECT(Support::alignUpPowerOf2<size_t>(0x1001) == 0x02000);
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}
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static void testBitUtils() noexcept {
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uint32_t i;
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INFO("Support::shl() / shr()");
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EXPECT(Support::shl(int32_t(0x00001111), 16) == int32_t(0x11110000u));
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EXPECT(Support::shl(uint32_t(0x00001111), 16) == uint32_t(0x11110000u));
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EXPECT(Support::shr(int32_t(0x11110000u), 16) == int32_t(0x00001111u));
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EXPECT(Support::shr(uint32_t(0x11110000u), 16) == uint32_t(0x00001111u));
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EXPECT(Support::sar(int32_t(0xFFFF0000u), 16) == int32_t(0xFFFFFFFFu));
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EXPECT(Support::sar(uint32_t(0xFFFF0000u), 16) == uint32_t(0xFFFFFFFFu));
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INFO("Support::blsi()");
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for (i = 0; i < 32; i++) EXPECT(Support::blsi(uint32_t(1) << i) == uint32_t(1) << i);
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for (i = 0; i < 31; i++) EXPECT(Support::blsi(uint32_t(3) << i) == uint32_t(1) << i);
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for (i = 0; i < 64; i++) EXPECT(Support::blsi(uint64_t(1) << i) == uint64_t(1) << i);
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for (i = 0; i < 63; i++) EXPECT(Support::blsi(uint64_t(3) << i) == uint64_t(1) << i);
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INFO("Support::ctz()");
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for (i = 0; i < 32; i++) EXPECT(Support::ctz(uint32_t(1) << i) == i);
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for (i = 0; i < 64; i++) EXPECT(Support::ctz(uint64_t(1) << i) == i);
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for (i = 0; i < 32; i++) EXPECT(Support::constCtz(uint32_t(1) << i) == i);
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for (i = 0; i < 64; i++) EXPECT(Support::constCtz(uint64_t(1) << i) == i);
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INFO("Support::bitMask()");
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EXPECT(Support::bitMask(0, 1, 7) == 0x83u);
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for (i = 0; i < 32; i++)
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EXPECT(Support::bitMask(i) == (1u << i));
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INFO("Support::bitTest()");
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for (i = 0; i < 32; i++) {
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EXPECT(Support::bitTest((1 << i), i) == true, "Support::bitTest(%X, %u) should return true", (1 << i), i);
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}
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INFO("Support::lsbMask<uint32_t>()");
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for (i = 0; i < 32; i++) {
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uint32_t expectedBits = 0;
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for (uint32_t b = 0; b < i; b++)
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expectedBits |= uint32_t(1) << b;
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EXPECT(Support::lsbMask<uint32_t>(i) == expectedBits);
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}
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INFO("Support::lsbMask<uint64_t>()");
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for (i = 0; i < 64; i++) {
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uint64_t expectedBits = 0;
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for (uint32_t b = 0; b < i; b++)
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expectedBits |= uint64_t(1) << b;
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EXPECT(Support::lsbMask<uint64_t>(i) == expectedBits);
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}
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INFO("Support::popcnt()");
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for (i = 0; i < 32; i++) EXPECT(Support::popcnt((uint32_t(1) << i)) == 1);
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for (i = 0; i < 64; i++) EXPECT(Support::popcnt((uint64_t(1) << i)) == 1);
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EXPECT(Support::popcnt(0x000000F0) == 4);
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EXPECT(Support::popcnt(0x10101010) == 4);
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EXPECT(Support::popcnt(0xFF000000) == 8);
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EXPECT(Support::popcnt(0xFFFFFFF7) == 31);
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EXPECT(Support::popcnt(0x7FFFFFFF) == 31);
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INFO("Support::isPowerOf2()");
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for (i = 0; i < 64; i++) {
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EXPECT(Support::isPowerOf2(uint64_t(1) << i) == true);
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EXPECT(Support::isPowerOf2((uint64_t(1) << i) ^ 0x001101) == false);
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}
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}
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static void testIntUtils() noexcept {
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INFO("Support::byteswap()");
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EXPECT(Support::byteswap32(int32_t(0x01020304)) == int32_t(0x04030201));
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EXPECT(Support::byteswap32(uint32_t(0x01020304)) == uint32_t(0x04030201));
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INFO("Support::bytepack()");
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union BytePackData {
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uint8_t bytes[4];
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uint32_t u32;
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} bpdata;
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bpdata.u32 = Support::bytepack32_4x8(0x00, 0x11, 0x22, 0x33);
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EXPECT(bpdata.bytes[0] == 0x00);
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EXPECT(bpdata.bytes[1] == 0x11);
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EXPECT(bpdata.bytes[2] == 0x22);
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EXPECT(bpdata.bytes[3] == 0x33);
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INFO("Support::isBetween()");
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EXPECT(Support::isBetween<int>(10 , 10, 20) == true);
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EXPECT(Support::isBetween<int>(11 , 10, 20) == true);
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EXPECT(Support::isBetween<int>(20 , 10, 20) == true);
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EXPECT(Support::isBetween<int>(9 , 10, 20) == false);
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EXPECT(Support::isBetween<int>(21 , 10, 20) == false);
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EXPECT(Support::isBetween<int>(101, 10, 20) == false);
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INFO("Support::isInt8()");
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EXPECT(Support::isInt8(-128) == true);
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EXPECT(Support::isInt8( 127) == true);
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EXPECT(Support::isInt8(-129) == false);
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EXPECT(Support::isInt8( 128) == false);
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INFO("Support::isInt16()");
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EXPECT(Support::isInt16(-32768) == true);
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EXPECT(Support::isInt16( 32767) == true);
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EXPECT(Support::isInt16(-32769) == false);
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EXPECT(Support::isInt16( 32768) == false);
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INFO("Support::isInt32()");
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EXPECT(Support::isInt32( 2147483647 ) == true);
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EXPECT(Support::isInt32(-2147483647 - 1) == true);
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EXPECT(Support::isInt32(uint64_t(2147483648u)) == false);
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EXPECT(Support::isInt32(uint64_t(0xFFFFFFFFu)) == false);
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EXPECT(Support::isInt32(uint64_t(0xFFFFFFFFu) + 1) == false);
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INFO("Support::isUInt8()");
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EXPECT(Support::isUInt8(0) == true);
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EXPECT(Support::isUInt8(255) == true);
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EXPECT(Support::isUInt8(256) == false);
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EXPECT(Support::isUInt8(-1) == false);
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INFO("Support::isUInt12()");
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EXPECT(Support::isUInt12(0) == true);
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EXPECT(Support::isUInt12(4095) == true);
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EXPECT(Support::isUInt12(4096) == false);
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EXPECT(Support::isUInt12(-1) == false);
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INFO("Support::isUInt16()");
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EXPECT(Support::isUInt16(0) == true);
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EXPECT(Support::isUInt16(65535) == true);
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EXPECT(Support::isUInt16(65536) == false);
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EXPECT(Support::isUInt16(-1) == false);
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INFO("Support::isUInt32()");
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EXPECT(Support::isUInt32(uint64_t(0xFFFFFFFF)) == true);
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EXPECT(Support::isUInt32(uint64_t(0xFFFFFFFF) + 1) == false);
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EXPECT(Support::isUInt32(-1) == false);
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}
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static void testReadWrite() noexcept {
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INFO("Support::readX() / writeX()");
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uint8_t arr[32] = { 0 };
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Support::writeU16uBE(arr + 1, 0x0102u);
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Support::writeU16uBE(arr + 3, 0x0304u);
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EXPECT(Support::readU32uBE(arr + 1) == 0x01020304u);
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EXPECT(Support::readU32uLE(arr + 1) == 0x04030201u);
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EXPECT(Support::readU32uBE(arr + 2) == 0x02030400u);
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EXPECT(Support::readU32uLE(arr + 2) == 0x00040302u);
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Support::writeU32uLE(arr + 5, 0x05060708u);
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EXPECT(Support::readU64uBE(arr + 1) == 0x0102030408070605u);
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EXPECT(Support::readU64uLE(arr + 1) == 0x0506070804030201u);
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Support::writeU64uLE(arr + 7, 0x1122334455667788u);
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EXPECT(Support::readU32uBE(arr + 8) == 0x77665544u);
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}
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static void testBitVector() noexcept {
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INFO("Support::bitVectorOp");
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{
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uint32_t vec[3] = { 0 };
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Support::bitVectorFill(vec, 1, 64);
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EXPECT(vec[0] == 0xFFFFFFFEu);
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EXPECT(vec[1] == 0xFFFFFFFFu);
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EXPECT(vec[2] == 0x00000001u);
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Support::bitVectorClear(vec, 1, 1);
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EXPECT(vec[0] == 0xFFFFFFFCu);
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EXPECT(vec[1] == 0xFFFFFFFFu);
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EXPECT(vec[2] == 0x00000001u);
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Support::bitVectorFill(vec, 0, 32);
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EXPECT(vec[0] == 0xFFFFFFFFu);
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EXPECT(vec[1] == 0xFFFFFFFFu);
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EXPECT(vec[2] == 0x00000001u);
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Support::bitVectorClear(vec, 0, 32);
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EXPECT(vec[0] == 0x00000000u);
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EXPECT(vec[1] == 0xFFFFFFFFu);
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EXPECT(vec[2] == 0x00000001u);
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Support::bitVectorFill(vec, 1, 30);
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EXPECT(vec[0] == 0x7FFFFFFEu);
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EXPECT(vec[1] == 0xFFFFFFFFu);
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EXPECT(vec[2] == 0x00000001u);
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Support::bitVectorClear(vec, 1, 95);
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EXPECT(vec[0] == 0x00000000u);
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EXPECT(vec[1] == 0x00000000u);
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EXPECT(vec[2] == 0x00000000u);
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Support::bitVectorFill(vec, 32, 64);
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EXPECT(vec[0] == 0x00000000u);
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EXPECT(vec[1] == 0xFFFFFFFFu);
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EXPECT(vec[2] == 0xFFFFFFFFu);
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Support::bitVectorSetBit(vec, 1, true);
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EXPECT(vec[0] == 0x00000002u);
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EXPECT(vec[1] == 0xFFFFFFFFu);
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EXPECT(vec[2] == 0xFFFFFFFFu);
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Support::bitVectorSetBit(vec, 95, false);
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EXPECT(vec[0] == 0x00000002u);
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EXPECT(vec[1] == 0xFFFFFFFFu);
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EXPECT(vec[2] == 0x7FFFFFFFu);
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Support::bitVectorClear(vec, 33, 32);
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EXPECT(vec[0] == 0x00000002u);
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EXPECT(vec[1] == 0x00000001u);
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EXPECT(vec[2] == 0x7FFFFFFEu);
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}
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INFO("Support::bitVectorIndexOf");
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{
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uint32_t vec1[1] = { 0x80000000 };
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EXPECT(Support::bitVectorIndexOf(vec1, 0, true) == 31);
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EXPECT(Support::bitVectorIndexOf(vec1, 1, true) == 31);
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EXPECT(Support::bitVectorIndexOf(vec1, 31, true) == 31);
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uint32_t vec2[2] = { 0x00000000, 0x80000000 };
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EXPECT(Support::bitVectorIndexOf(vec2, 0, true) == 63);
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EXPECT(Support::bitVectorIndexOf(vec2, 1, true) == 63);
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EXPECT(Support::bitVectorIndexOf(vec2, 31, true) == 63);
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EXPECT(Support::bitVectorIndexOf(vec2, 32, true) == 63);
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EXPECT(Support::bitVectorIndexOf(vec2, 33, true) == 63);
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EXPECT(Support::bitVectorIndexOf(vec2, 63, true) == 63);
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uint32_t vec3[3] = { 0x00000001, 0x00000000, 0x80000000 };
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EXPECT(Support::bitVectorIndexOf(vec3, 0, true) == 0);
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EXPECT(Support::bitVectorIndexOf(vec3, 1, true) == 95);
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EXPECT(Support::bitVectorIndexOf(vec3, 2, true) == 95);
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EXPECT(Support::bitVectorIndexOf(vec3, 31, true) == 95);
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EXPECT(Support::bitVectorIndexOf(vec3, 32, true) == 95);
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EXPECT(Support::bitVectorIndexOf(vec3, 63, true) == 95);
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EXPECT(Support::bitVectorIndexOf(vec3, 64, true) == 95);
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EXPECT(Support::bitVectorIndexOf(vec3, 95, true) == 95);
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uint32_t vec4[3] = { ~vec3[0], ~vec3[1], ~vec3[2] };
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EXPECT(Support::bitVectorIndexOf(vec4, 0, false) == 0);
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EXPECT(Support::bitVectorIndexOf(vec4, 1, false) == 95);
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EXPECT(Support::bitVectorIndexOf(vec4, 2, false) == 95);
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EXPECT(Support::bitVectorIndexOf(vec4, 31, false) == 95);
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EXPECT(Support::bitVectorIndexOf(vec4, 32, false) == 95);
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EXPECT(Support::bitVectorIndexOf(vec4, 63, false) == 95);
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EXPECT(Support::bitVectorIndexOf(vec4, 64, false) == 95);
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EXPECT(Support::bitVectorIndexOf(vec4, 95, false) == 95);
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}
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INFO("Support::BitWordIterator<uint32_t>");
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{
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Support::BitWordIterator<uint32_t> it(0x80000F01u);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 0);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 8);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 9);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 10);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 11);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 31);
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EXPECT(!it.hasNext());
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// No bits set.
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it.init(0x00000000u);
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ASMJIT_ASSERT(!it.hasNext());
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// Only first bit set.
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it.init(0x00000001u);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 0);
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ASMJIT_ASSERT(!it.hasNext());
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// Only last bit set (special case).
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it.init(0x80000000u);
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ASMJIT_ASSERT(it.hasNext());
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ASMJIT_ASSERT(it.next() == 31);
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ASMJIT_ASSERT(!it.hasNext());
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}
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INFO("Support::BitWordIterator<uint64_t>");
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{
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Support::BitWordIterator<uint64_t> it(uint64_t(1) << 63);
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ASMJIT_ASSERT(it.hasNext());
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ASMJIT_ASSERT(it.next() == 63);
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ASMJIT_ASSERT(!it.hasNext());
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}
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INFO("Support::BitVectorIterator<uint32_t>");
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{
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// Border cases.
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static const uint32_t bitsNone[] = { 0xFFFFFFFFu };
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Support::BitVectorIterator<uint32_t> it(bitsNone, 0);
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EXPECT(!it.hasNext());
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it.init(bitsNone, 0, 1);
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EXPECT(!it.hasNext());
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it.init(bitsNone, 0, 128);
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EXPECT(!it.hasNext());
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static const uint32_t bits1[] = { 0x80000008u, 0x80000001u, 0x00000000u, 0x80000000u, 0x00000000u, 0x00000000u, 0x00003000u };
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it.init(bits1, ASMJIT_ARRAY_SIZE(bits1));
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EXPECT(it.hasNext());
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EXPECT(it.next() == 3);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 31);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 32);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 63);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 127);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 204);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 205);
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EXPECT(!it.hasNext());
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it.init(bits1, ASMJIT_ARRAY_SIZE(bits1), 4);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 31);
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it.init(bits1, ASMJIT_ARRAY_SIZE(bits1), 64);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 127);
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it.init(bits1, ASMJIT_ARRAY_SIZE(bits1), 127);
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EXPECT(it.hasNext());
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EXPECT(it.next() == 127);
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static const uint32_t bits2[] = { 0x80000000u, 0x80000000u, 0x00000000u, 0x80000000u };
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it.init(bits2, ASMJIT_ARRAY_SIZE(bits2));
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EXPECT(it.hasNext());
|
|
EXPECT(it.next() == 31);
|
|
EXPECT(it.hasNext());
|
|
EXPECT(it.next() == 63);
|
|
EXPECT(it.hasNext());
|
|
EXPECT(it.next() == 127);
|
|
EXPECT(!it.hasNext());
|
|
|
|
static const uint32_t bits3[] = { 0x00000000u, 0x00000000u, 0x00000000u, 0x00000000u };
|
|
it.init(bits3, ASMJIT_ARRAY_SIZE(bits3));
|
|
EXPECT(!it.hasNext());
|
|
|
|
static const uint32_t bits4[] = { 0x00000000u, 0x00000000u, 0x00000000u, 0x80000000u };
|
|
it.init(bits4, ASMJIT_ARRAY_SIZE(bits4));
|
|
EXPECT(it.hasNext());
|
|
EXPECT(it.next() == 127);
|
|
EXPECT(!it.hasNext());
|
|
}
|
|
|
|
INFO("Support::BitVectorIterator<uint64_t>");
|
|
{
|
|
static const uint64_t bits1[] = { 0x80000000u, 0x80000000u, 0x00000000u, 0x80000000u };
|
|
Support::BitVectorIterator<uint64_t> it(bits1, ASMJIT_ARRAY_SIZE(bits1));
|
|
|
|
EXPECT(it.hasNext());
|
|
EXPECT(it.next() == 31);
|
|
EXPECT(it.hasNext());
|
|
EXPECT(it.next() == 95);
|
|
EXPECT(it.hasNext());
|
|
EXPECT(it.next() == 223);
|
|
EXPECT(!it.hasNext());
|
|
|
|
static const uint64_t bits2[] = { 0x8000000000000000u, 0, 0, 0 };
|
|
it.init(bits2, ASMJIT_ARRAY_SIZE(bits2));
|
|
|
|
EXPECT(it.hasNext());
|
|
EXPECT(it.next() == 63);
|
|
EXPECT(!it.hasNext());
|
|
}
|
|
}
|
|
|
|
static void testSorting() noexcept {
|
|
INFO("Support::qSort() - Testing qsort and isort of predefined arrays");
|
|
{
|
|
constexpr size_t kArraySize = 11;
|
|
|
|
int ref_[kArraySize] = { -4, -2, -1, 0, 1, 9, 12, 13, 14, 19, 22 };
|
|
int arr1[kArraySize] = { 0, 1, -1, 19, 22, 14, -4, 9, 12, 13, -2 };
|
|
int arr2[kArraySize];
|
|
|
|
memcpy(arr2, arr1, kArraySize * sizeof(int));
|
|
|
|
Support::iSort(arr1, kArraySize);
|
|
Support::qSort(arr2, kArraySize);
|
|
testArrays(arr1, ref_, kArraySize);
|
|
testArrays(arr2, ref_, kArraySize);
|
|
}
|
|
|
|
INFO("Support::qSort() - Testing qsort and isort of artificial arrays");
|
|
{
|
|
constexpr size_t kArraySize = 200;
|
|
|
|
int arr1[kArraySize];
|
|
int arr2[kArraySize];
|
|
int ref_[kArraySize];
|
|
|
|
for (size_t size = 2; size < kArraySize; size++) {
|
|
for (size_t i = 0; i < size; i++) {
|
|
arr1[i] = int(size - 1 - i);
|
|
arr2[i] = int(size - 1 - i);
|
|
ref_[i] = int(i);
|
|
}
|
|
|
|
Support::iSort(arr1, size);
|
|
Support::qSort(arr2, size);
|
|
testArrays(arr1, ref_, size);
|
|
testArrays(arr2, ref_, size);
|
|
}
|
|
}
|
|
|
|
INFO("Support::qSort() - Testing qsort and isort with an unstable compare function");
|
|
{
|
|
constexpr size_t kArraySize = 5;
|
|
|
|
float arr1[kArraySize] = { 1.0f, 0.0f, 3.0f, -1.0f, std::numeric_limits<float>::quiet_NaN() };
|
|
float arr2[kArraySize] = { };
|
|
|
|
memcpy(arr2, arr1, kArraySize * sizeof(float));
|
|
|
|
// We don't test as it's undefined where the NaN would be.
|
|
Support::iSort(arr1, kArraySize);
|
|
Support::qSort(arr2, kArraySize);
|
|
}
|
|
}
|
|
|
|
UNIT(support) {
|
|
testAlignment();
|
|
testBitUtils();
|
|
testIntUtils();
|
|
testReadWrite();
|
|
testBitVector();
|
|
testSorting();
|
|
}
|
|
#endif
|
|
|
|
ASMJIT_END_NAMESPACE
|