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common/bit_util: Replace CLZ/CTZ operations with standardized ones

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Makes for less code that we need to maintain.
This commit is contained in:
Lioncash 2021-01-15 02:02:57 -05:00
parent c8bf0caca0
commit 8620de6b20
10 changed files with 17 additions and 113 deletions
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1
src/tests/CMakeLists.txt
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@ -1,6 +1,5 @@
add_executable(tests
common/bit_field.cpp
common/bit_utils.cpp
common/fibers.cpp
common/param_package.cpp
common/ring_buffer.cpp

23
src/tests/common/bit_utils.cpp
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@ -1,23 +0,0 @@
// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <catch2/catch.hpp>
#include <math.h>
#include "common/bit_util.h"
namespace Common {
TEST_CASE("BitUtils::CountTrailingZeroes", "[common]") {
REQUIRE(Common::CountTrailingZeroes32(0) == 32);
REQUIRE(Common::CountTrailingZeroes64(0) == 64);
REQUIRE(Common::CountTrailingZeroes32(9) == 0);
REQUIRE(Common::CountTrailingZeroes32(8) == 3);
REQUIRE(Common::CountTrailingZeroes32(0x801000) == 12);
REQUIRE(Common::CountTrailingZeroes64(9) == 0);
REQUIRE(Common::CountTrailingZeroes64(8) == 3);
REQUIRE(Common::CountTrailingZeroes64(0x801000) == 12);
REQUIRE(Common::CountTrailingZeroes64(0x801000000000UL) == 36);
}
} // namespace Common