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Replace BitUtils with C++20: RotateLeft/RotateRight

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Now that we've flipped the C++20 switch, let's start making use of
the nice new <bit> header.

I'm planning on handling this move away from BitUtils.h incrementally
in a series of PRs. There may be a few functions remaining in
BitUtils.h by the end that C++20 doesn't have any equivalents for.
This commit is contained in:
JosJuice
2022-08-05 15:39:00 +02:00
parent 48ce5318e1
commit 454537d53e
11 changed files with 63 additions and 141 deletions
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4
Source/Core/Common/Crypto/AES.cpp
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@ -2,12 +2,12 @@
// SPDX-License-Identifier: GPL-2.0-or-later
#include <array>
#include <bit>
#include <memory>
#include <mbedtls/aes.h>
#include "Common/Assert.h"
#include "Common/BitUtils.h"
#include "Common/CPUDetect.h"
#include "Common/Crypto/AES.h"
@ -294,7 +294,7 @@ public:
{
const uint8x16_t enc = vaeseq_u8(vreinterpretq_u8_u32(vmovq_n_u32(rk[i + 3])), vmovq_n_u8(0));
const u32 temp = vgetq_lane_u32(vreinterpretq_u32_u8(enc), 0);
rk[i + 4] = rk[i + 0] ^ Common::RotateRight(temp, 8) ^ rcon[i / Nk];
rk[i + 4] = rk[i + 0] ^ std::rotr(temp, 8) ^ rcon[i / Nk];
rk[i + 5] = rk[i + 4] ^ rk[i + 1];
rk[i + 6] = rk[i + 5] ^ rk[i + 2];
rk[i + 7] = rk[i + 6] ^ rk[i + 3];