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-rw-r--r--src/common/bit_util.h76
-rw-r--r--src/core/hle/kernel/k_priority_queue.h4
-rw-r--r--src/core/hle/kernel/k_scheduler.cpp8
-rw-r--r--src/core/hle/kernel/memory/page_heap.h4
-rw-r--r--src/core/hle/kernel/process_capability.cpp4
-rw-r--r--src/tests/CMakeLists.txt1
-rw-r--r--src/tests/common/bit_utils.cpp23
-rw-r--r--src/video_core/cdma_pusher.cpp4
-rw-r--r--src/video_core/cdma_pusher.h2
-rw-r--r--src/video_core/command_classes/codecs/h264.cpp4
10 files changed, 17 insertions, 113 deletions
diff --git a/src/common/bit_util.h b/src/common/bit_util.h
index 29f59a9a3..685e7fc9b 100644
--- a/src/common/bit_util.h
+++ b/src/common/bit_util.h
@@ -22,82 +22,6 @@ template <typename T>
}
#ifdef _MSC_VER
-[[nodiscard]] inline u32 CountLeadingZeroes32(u32 value) {
- unsigned long leading_zero = 0;
-
- if (_BitScanReverse(&leading_zero, value) != 0) {
- return 31 - leading_zero;
- }
-
- return 32;
-}
-
-[[nodiscard]] inline u32 CountLeadingZeroes64(u64 value) {
- unsigned long leading_zero = 0;
-
- if (_BitScanReverse64(&leading_zero, value) != 0) {
- return 63 - leading_zero;
- }
-
- return 64;
-}
-#else
-[[nodiscard]] inline u32 CountLeadingZeroes32(u32 value) {
- if (value == 0) {
- return 32;
- }
-
- return static_cast<u32>(__builtin_clz(value));
-}
-
-[[nodiscard]] inline u32 CountLeadingZeroes64(u64 value) {
- if (value == 0) {
- return 64;
- }
-
- return static_cast<u32>(__builtin_clzll(value));
-}
-#endif
-
-#ifdef _MSC_VER
-[[nodiscard]] inline u32 CountTrailingZeroes32(u32 value) {
- unsigned long trailing_zero = 0;
-
- if (_BitScanForward(&trailing_zero, value) != 0) {
- return trailing_zero;
- }
-
- return 32;
-}
-
-[[nodiscard]] inline u32 CountTrailingZeroes64(u64 value) {
- unsigned long trailing_zero = 0;
-
- if (_BitScanForward64(&trailing_zero, value) != 0) {
- return trailing_zero;
- }
-
- return 64;
-}
-#else
-[[nodiscard]] inline u32 CountTrailingZeroes32(u32 value) {
- if (value == 0) {
- return 32;
- }
-
- return static_cast<u32>(__builtin_ctz(value));
-}
-
-[[nodiscard]] inline u32 CountTrailingZeroes64(u64 value) {
- if (value == 0) {
- return 64;
- }
-
- return static_cast<u32>(__builtin_ctzll(value));
-}
-#endif
-
-#ifdef _MSC_VER
[[nodiscard]] inline u32 MostSignificantBit32(const u32 value) {
unsigned long result;
diff --git a/src/core/hle/kernel/k_priority_queue.h b/src/core/hle/kernel/k_priority_queue.h
index 99fb8fe93..0dc929040 100644
--- a/src/core/hle/kernel/k_priority_queue.h
+++ b/src/core/hle/kernel/k_priority_queue.h
@@ -8,11 +8,11 @@
#pragma once
#include <array>
+#include <bit>
#include <concepts>
#include "common/assert.h"
#include "common/bit_set.h"
-#include "common/bit_util.h"
#include "common/common_types.h"
#include "common/concepts.h"
@@ -268,7 +268,7 @@ private:
}
constexpr s32 GetNextCore(u64& affinity) {
- const s32 core = Common::CountTrailingZeroes64(affinity);
+ const s32 core = std::countr_zero(affinity);
ClearAffinityBit(affinity, core);
return core;
}
diff --git a/src/core/hle/kernel/k_scheduler.cpp b/src/core/hle/kernel/k_scheduler.cpp
index 42f0ea483..12b5619fb 100644
--- a/src/core/hle/kernel/k_scheduler.cpp
+++ b/src/core/hle/kernel/k_scheduler.cpp
@@ -5,6 +5,8 @@
// This file references various implementation details from Atmosphere, an open-source firmware for
// the Nintendo Switch. Copyright 2018-2020 Atmosphere-NX.
+#include <bit>
+
#include "common/assert.h"
#include "common/bit_util.h"
#include "common/fiber.h"
@@ -31,12 +33,12 @@ static void IncrementScheduledCount(Kernel::Thread* thread) {
void KScheduler::RescheduleCores(KernelCore& kernel, u64 cores_pending_reschedule,
Core::EmuThreadHandle global_thread) {
- u32 current_core = global_thread.host_handle;
+ const u32 current_core = global_thread.host_handle;
bool must_context_switch = global_thread.guest_handle != InvalidHandle &&
(current_core < Core::Hardware::NUM_CPU_CORES);
while (cores_pending_reschedule != 0) {
- u32 core = Common::CountTrailingZeroes64(cores_pending_reschedule);
+ const auto core = static_cast<u32>(std::countr_zero(cores_pending_reschedule));
ASSERT(core < Core::Hardware::NUM_CPU_CORES);
if (!must_context_switch || core != current_core) {
auto& phys_core = kernel.PhysicalCore(core);
@@ -109,7 +111,7 @@ u64 KScheduler::UpdateHighestPriorityThreadsImpl(KernelCore& kernel) {
// Idle cores are bad. We're going to try to migrate threads to each idle core in turn.
while (idle_cores != 0) {
- u32 core_id = Common::CountTrailingZeroes64(idle_cores);
+ const auto core_id = static_cast<u32>(std::countr_zero(idle_cores));
if (Thread* suggested = priority_queue.GetSuggestedFront(core_id); suggested != nullptr) {
s32 migration_candidates[Core::Hardware::NUM_CPU_CORES];
size_t num_candidates = 0;
diff --git a/src/core/hle/kernel/memory/page_heap.h b/src/core/hle/kernel/memory/page_heap.h
index 22b0de860..131093284 100644
--- a/src/core/hle/kernel/memory/page_heap.h
+++ b/src/core/hle/kernel/memory/page_heap.h
@@ -8,11 +8,11 @@
#pragma once
#include <array>
+#include <bit>
#include <vector>
#include "common/alignment.h"
#include "common/assert.h"
-#include "common/bit_util.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "core/hle/kernel/memory/memory_types.h"
@@ -105,7 +105,7 @@ private:
ASSERT(depth == 0);
return -1;
}
- offset = offset * 64 + Common::CountTrailingZeroes64(v);
+ offset = offset * 64 + static_cast<u32>(std::countr_zero(v));
++depth;
} while (depth < static_cast<s32>(used_depths));
diff --git a/src/core/hle/kernel/process_capability.cpp b/src/core/hle/kernel/process_capability.cpp
index 0f128c586..0566311b6 100644
--- a/src/core/hle/kernel/process_capability.cpp
+++ b/src/core/hle/kernel/process_capability.cpp
@@ -2,6 +2,8 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
+#include <bit>
+
#include "common/bit_util.h"
#include "common/logging/log.h"
#include "core/hle/kernel/errors.h"
@@ -60,7 +62,7 @@ constexpr CapabilityType GetCapabilityType(u32 value) {
u32 GetFlagBitOffset(CapabilityType type) {
const auto value = static_cast<u32>(type);
- return static_cast<u32>(Common::BitSize<u32>() - Common::CountLeadingZeroes32(value));
+ return static_cast<u32>(Common::BitSize<u32>() - static_cast<u32>(std::countl_zero(value)));
}
} // Anonymous namespace
diff --git a/src/tests/CMakeLists.txt b/src/tests/CMakeLists.txt
index 8a606b448..33fa89583 100644
--- a/src/tests/CMakeLists.txt
+++ b/src/tests/CMakeLists.txt
@@ -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
diff --git a/src/tests/common/bit_utils.cpp b/src/tests/common/bit_utils.cpp
deleted file mode 100644
index 479b5995a..000000000
--- a/src/tests/common/bit_utils.cpp
+++ /dev/null
@@ -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
diff --git a/src/video_core/cdma_pusher.cpp b/src/video_core/cdma_pusher.cpp
index 94679d5d1..33b3c060b 100644
--- a/src/video_core/cdma_pusher.cpp
+++ b/src/video_core/cdma_pusher.cpp
@@ -18,10 +18,10 @@
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
+#include <bit>
#include "command_classes/host1x.h"
#include "command_classes/nvdec.h"
#include "command_classes/vic.h"
-#include "common/bit_util.h"
#include "video_core/cdma_pusher.h"
#include "video_core/command_classes/nvdec_common.h"
#include "video_core/engines/maxwell_3d.h"
@@ -56,7 +56,7 @@ void CDmaPusher::Step() {
for (const u32 value : values) {
if (mask != 0) {
- const u32 lbs = Common::CountTrailingZeroes32(mask);
+ const auto lbs = static_cast<u32>(std::countr_zero(mask));
mask &= ~(1U << lbs);
ExecuteCommand(static_cast<u32>(offset + lbs), value);
continue;
diff --git a/src/video_core/cdma_pusher.h b/src/video_core/cdma_pusher.h
index 8ca70b6dd..e5f212c1a 100644
--- a/src/video_core/cdma_pusher.h
+++ b/src/video_core/cdma_pusher.h
@@ -126,7 +126,7 @@ private:
s32 count{};
s32 offset{};
- s32 mask{};
+ u32 mask{};
bool incrementing{};
// Queue of command lists to be processed
diff --git a/src/video_core/command_classes/codecs/h264.cpp b/src/video_core/command_classes/codecs/h264.cpp
index 65bbeac78..fea6aed98 100644
--- a/src/video_core/command_classes/codecs/h264.cpp
+++ b/src/video_core/command_classes/codecs/h264.cpp
@@ -19,7 +19,7 @@
//
#include <array>
-#include "common/bit_util.h"
+#include <bit>
#include "video_core/command_classes/codecs/h264.h"
#include "video_core/gpu.h"
#include "video_core/memory_manager.h"
@@ -266,7 +266,7 @@ void H264BitWriter::WriteExpGolombCodedInt(s32 value) {
}
void H264BitWriter::WriteExpGolombCodedUInt(u32 value) {
- const s32 size = 32 - Common::CountLeadingZeroes32(static_cast<s32>(value + 1));
+ const s32 size = 32 - std::countl_zero(value + 1);
WriteBits(1, size);
value -= (1U << (size - 1)) - 1;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 22:36:47 +0100