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AES: Use SSE2-based implementation as the fallback on x86 and x86-64.

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Address some warnings from Clang/GCC in the SSE2 code that are disabled
by default in BoringSSL but not in *ring*.
This commit is contained in:
Brian Smith 2022-02-03 16:38:50 -08:00
parent e4a85afb58
commit 1a5ad00222
1 changed files with 8 additions and 1 deletions
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9
crypto/fipsmodule/aes/aes_nohw.c
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@ -16,6 +16,13 @@
#include "../../internal.h"
#if defined(OPENSSL_X86) || defined(OPENSSL_X86_64)
#define OPENSSL_SSE2
#if defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic ignored "-Wsign-conversion"
#endif
#endif
#if defined(OPENSSL_SSE2)
#include <emmintrin.h>
#endif
@ -783,7 +790,7 @@ static const uint8_t aes_nohw_rcon[10] = {0x01, 0x02, 0x04, 0x08, 0x10,
// aes_nohw_rcon_slice returns the |i|th group of |AES_NOHW_BATCH_SIZE| bits in
// |rcon|, stored in a |aes_word_t|.
static inline aes_word_t aes_nohw_rcon_slice(uint8_t rcon, size_t i) {
rcon = (rcon >> (i * AES_NOHW_BATCH_SIZE)) & ((1 << AES_NOHW_BATCH_SIZE) - 1);
rcon = (uint8_t) ((rcon >> (i * AES_NOHW_BATCH_SIZE)) & ((1 << AES_NOHW_BATCH_SIZE) - 1));
#if defined(OPENSSL_SSE2)
return _mm_set_epi32(0, 0, 0, rcon);
#else