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Message-ID: <CAKwvOdnG4F6+Ndfj+=BoV6OidJjWS_dYtjvyCEJ6nyxkSQc3rg@mail.gmail.com>
Date: Thu, 26 Mar 2020 10:55:09 -0700
From: Nick Desaulniers <ndesaulniers@...gle.com>
To: Masahiro Yamada <masahiroy@...nel.org>
Cc: Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
Thomas Gleixner <tglx@...utronix.de>,
Borislav Petkov <bp@...en8.de>,
Peter Zijlstra <peterz@...radead.org>,
"H . Peter Anvin" <hpa@...or.com>,
"maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
"Jason A . Donenfeld" <Jason@...c4.com>,
clang-built-linux <clang-built-linux@...glegroups.com>,
"David S. Miller" <davem@...emloft.net>,
Herbert Xu <herbert@...dor.apana.org.au>,
Ingo Molnar <mingo@...hat.com>,
"open list:HARDWARE RANDOM NUMBER GENERATOR CORE"
<linux-crypto@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 15/16] x86: update AS_* macros to binutils >=2.23,
supporting ADX and AVX2
On Thu, Mar 26, 2020 at 1:02 AM Masahiro Yamada <masahiroy@...nel.org> wrote:
>
> From: "Jason A. Donenfeld" <Jason@...c4.com>
>
> Now that the kernel specifies binutils 2.23 as the minimum version, we
> can remove ifdefs for AVX2 and ADX throughout.
>
> Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
> ---
>
> Changes in v2: None
>
> arch/x86/Kconfig.assembler | 10 ----------
> arch/x86/crypto/Makefile | 6 ++----
> arch/x86/crypto/aesni-intel_avx-x86_64.S | 3 ---
> arch/x86/crypto/aesni-intel_glue.c | 7 -------
> arch/x86/crypto/chacha_glue.c | 6 ++----
> arch/x86/crypto/poly1305-x86_64-cryptogams.pl | 8 --------
> arch/x86/crypto/poly1305_glue.c | 5 ++---
> arch/x86/crypto/sha1_ssse3_glue.c | 6 ------
> arch/x86/crypto/sha256-avx2-asm.S | 3 ---
> arch/x86/crypto/sha256_ssse3_glue.c | 6 ------
> arch/x86/crypto/sha512-avx2-asm.S | 3 ---
> arch/x86/crypto/sha512_ssse3_glue.c | 5 -----
> crypto/Kconfig | 8 ++++----
> lib/raid6/algos.c | 6 ------
> lib/raid6/avx2.c | 4 ----
> lib/raid6/recov_avx2.c | 6 ------
> lib/raid6/test/Makefile | 3 ---
I see four checks for CONFIG_AS_AVX2 in:
net/netfilter/nft_set_pipapo.c
net/netfilter/nf_tables_api.c
net/netfilter/Makefile
net/netfilter/nft_set_pipapo_avx2.h
Can changes for those be added to this?
> 17 files changed, 10 insertions(+), 85 deletions(-)
>
> diff --git a/arch/x86/Kconfig.assembler b/arch/x86/Kconfig.assembler
> index a5a1d2766b3a..13de0db38d4e 100644
> --- a/arch/x86/Kconfig.assembler
> +++ b/arch/x86/Kconfig.assembler
> @@ -1,11 +1,6 @@
> # SPDX-License-Identifier: GPL-2.0
> # Copyright (C) 2020 Jason A. Donenfeld <Jason@...c4.com>. All Rights Reserved.
>
> -config AS_AVX2
> - def_bool $(as-instr,vpbroadcastb %xmm0$(comma)%ymm1)
> - help
> - Supported by binutils >= 2.22 and LLVM integrated assembler
> -
> config AS_AVX512
> def_bool $(as-instr,vpmovm2b %k1$(comma)%zmm5)
> help
> @@ -20,8 +15,3 @@ config AS_SHA256_NI
> def_bool $(as-instr,sha256msg1 %xmm0$(comma)%xmm1)
> help
> Supported by binutils >= 2.24 and LLVM integrated assembler
> -
> -config AS_ADX
> - def_bool $(as-instr,adox %eax$(comma)%eax)
> - help
> - Supported by binutils >= 2.23 and LLVM integrated assembler
> diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
> index 2f23f08fdd4b..928aad453c72 100644
> --- a/arch/x86/crypto/Makefile
> +++ b/arch/x86/crypto/Makefile
> @@ -47,8 +47,7 @@ obj-$(CONFIG_CRYPTO_AEGIS128_AESNI_SSE2) += aegis128-aesni.o
> aegis128-aesni-y := aegis128-aesni-asm.o aegis128-aesni-glue.o
>
> obj-$(CONFIG_CRYPTO_CHACHA20_X86_64) += chacha-x86_64.o
> -chacha-x86_64-y := chacha-ssse3-x86_64.o chacha_glue.o
> -chacha-x86_64-$(CONFIG_AS_AVX2) += chacha-avx2-x86_64.o
> +chacha-x86_64-y := chacha-avx2-x86_64.o chacha-ssse3-x86_64.o chacha_glue.o
> chacha-x86_64-$(CONFIG_AS_AVX512) += chacha-avx512vl-x86_64.o
>
> obj-$(CONFIG_CRYPTO_AES_NI_INTEL) += aesni-intel.o
> @@ -56,8 +55,7 @@ aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o
> aesni-intel-$(CONFIG_64BIT) += aesni-intel_avx-x86_64.o aes_ctrby8_avx-x86_64.o
>
> obj-$(CONFIG_CRYPTO_SHA1_SSSE3) += sha1-ssse3.o
> -sha1-ssse3-y := sha1_ssse3_asm.o sha1_ssse3_glue.o
> -sha1-ssse3-$(CONFIG_AS_AVX2) += sha1_avx2_x86_64_asm.o
> +sha1-ssse3-y := sha1_avx2_x86_64_asm.o sha1_ssse3_asm.o sha1_ssse3_glue.o
> sha1-ssse3-$(CONFIG_AS_SHA1_NI) += sha1_ni_asm.o
>
> obj-$(CONFIG_CRYPTO_SHA256_SSSE3) += sha256-ssse3.o
> diff --git a/arch/x86/crypto/aesni-intel_avx-x86_64.S b/arch/x86/crypto/aesni-intel_avx-x86_64.S
> index cc56ee43238b..0cea33295287 100644
> --- a/arch/x86/crypto/aesni-intel_avx-x86_64.S
> +++ b/arch/x86/crypto/aesni-intel_avx-x86_64.S
> @@ -1868,7 +1868,6 @@ key_256_finalize:
> ret
> SYM_FUNC_END(aesni_gcm_finalize_avx_gen2)
>
> -#ifdef CONFIG_AS_AVX2
> ###############################################################################
> # GHASH_MUL MACRO to implement: Data*HashKey mod (128,127,126,121,0)
> # Input: A and B (128-bits each, bit-reflected)
> @@ -2836,5 +2835,3 @@ key_256_finalize4:
> FUNC_RESTORE
> ret
> SYM_FUNC_END(aesni_gcm_finalize_avx_gen4)
> -
> -#endif /* CONFIG_AS_AVX2 */
> diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
> index e0f54e00edfd..c7f8c4d7f670 100644
> --- a/arch/x86/crypto/aesni-intel_glue.c
> +++ b/arch/x86/crypto/aesni-intel_glue.c
> @@ -233,7 +233,6 @@ static const struct aesni_gcm_tfm_s aesni_gcm_tfm_avx_gen2 = {
> .finalize = &aesni_gcm_finalize_avx_gen2,
> };
>
> -#ifdef CONFIG_AS_AVX2
> /*
> * asmlinkage void aesni_gcm_init_avx_gen4()
> * gcm_data *my_ctx_data, context data
> @@ -276,8 +275,6 @@ static const struct aesni_gcm_tfm_s aesni_gcm_tfm_avx_gen4 = {
> .finalize = &aesni_gcm_finalize_avx_gen4,
> };
>
> -#endif
> -
> static inline struct
> aesni_rfc4106_gcm_ctx *aesni_rfc4106_gcm_ctx_get(struct crypto_aead *tfm)
> {
> @@ -706,10 +703,8 @@ static int gcmaes_crypt_by_sg(bool enc, struct aead_request *req,
> if (!enc)
> left -= auth_tag_len;
>
> -#ifdef CONFIG_AS_AVX2
> if (left < AVX_GEN4_OPTSIZE && gcm_tfm == &aesni_gcm_tfm_avx_gen4)
> gcm_tfm = &aesni_gcm_tfm_avx_gen2;
> -#endif
> if (left < AVX_GEN2_OPTSIZE && gcm_tfm == &aesni_gcm_tfm_avx_gen2)
> gcm_tfm = &aesni_gcm_tfm_sse;
>
> @@ -1069,12 +1064,10 @@ static int __init aesni_init(void)
> if (!x86_match_cpu(aesni_cpu_id))
> return -ENODEV;
> #ifdef CONFIG_X86_64
> -#ifdef CONFIG_AS_AVX2
> if (boot_cpu_has(X86_FEATURE_AVX2)) {
> pr_info("AVX2 version of gcm_enc/dec engaged.\n");
> aesni_gcm_tfm = &aesni_gcm_tfm_avx_gen4;
> } else
> -#endif
> if (boot_cpu_has(X86_FEATURE_AVX)) {
> pr_info("AVX version of gcm_enc/dec engaged.\n");
> aesni_gcm_tfm = &aesni_gcm_tfm_avx_gen2;
> diff --git a/arch/x86/crypto/chacha_glue.c b/arch/x86/crypto/chacha_glue.c
> index 68a74953efaf..b412c21ee06e 100644
> --- a/arch/x86/crypto/chacha_glue.c
> +++ b/arch/x86/crypto/chacha_glue.c
> @@ -79,8 +79,7 @@ static void chacha_dosimd(u32 *state, u8 *dst, const u8 *src,
> }
> }
>
> - if (IS_ENABLED(CONFIG_AS_AVX2) &&
> - static_branch_likely(&chacha_use_avx2)) {
> + if (static_branch_likely(&chacha_use_avx2)) {
> while (bytes >= CHACHA_BLOCK_SIZE * 8) {
> chacha_8block_xor_avx2(state, dst, src, bytes, nrounds);
> bytes -= CHACHA_BLOCK_SIZE * 8;
> @@ -288,8 +287,7 @@ static int __init chacha_simd_mod_init(void)
>
> static_branch_enable(&chacha_use_simd);
>
> - if (IS_ENABLED(CONFIG_AS_AVX2) &&
> - boot_cpu_has(X86_FEATURE_AVX) &&
> + if (boot_cpu_has(X86_FEATURE_AVX) &&
> boot_cpu_has(X86_FEATURE_AVX2) &&
> cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) {
> static_branch_enable(&chacha_use_avx2);
> diff --git a/arch/x86/crypto/poly1305-x86_64-cryptogams.pl b/arch/x86/crypto/poly1305-x86_64-cryptogams.pl
> index 5bac2d533104..137edcf038cb 100644
> --- a/arch/x86/crypto/poly1305-x86_64-cryptogams.pl
> +++ b/arch/x86/crypto/poly1305-x86_64-cryptogams.pl
> @@ -1514,10 +1514,6 @@ ___
>
> if ($avx>1) {
>
> -if ($kernel) {
> - $code .= "#ifdef CONFIG_AS_AVX2\n";
> -}
> -
> my ($H0,$H1,$H2,$H3,$H4, $MASK, $T4,$T0,$T1,$T2,$T3, $D0,$D1,$D2,$D3,$D4) =
> map("%ymm$_",(0..15));
> my $S4=$MASK;
> @@ -2808,10 +2804,6 @@ ___
> poly1305_blocks_avxN(0);
> &end_function("poly1305_blocks_avx2");
>
> -if($kernel) {
> - $code .= "#endif\n";
> -}
> -
> #######################################################################
> if ($avx>2) {
> # On entry we have input length divisible by 64. But since inner loop
> diff --git a/arch/x86/crypto/poly1305_glue.c b/arch/x86/crypto/poly1305_glue.c
> index 4a6226e1d15e..6dfec19f7d57 100644
> --- a/arch/x86/crypto/poly1305_glue.c
> +++ b/arch/x86/crypto/poly1305_glue.c
> @@ -108,7 +108,7 @@ static void poly1305_simd_blocks(void *ctx, const u8 *inp, size_t len,
> kernel_fpu_begin();
> if (IS_ENABLED(CONFIG_AS_AVX512) && static_branch_likely(&poly1305_use_avx512))
> poly1305_blocks_avx512(ctx, inp, bytes, padbit);
> - else if (IS_ENABLED(CONFIG_AS_AVX2) && static_branch_likely(&poly1305_use_avx2))
> + else if (static_branch_likely(&poly1305_use_avx2))
> poly1305_blocks_avx2(ctx, inp, bytes, padbit);
> else
> poly1305_blocks_avx(ctx, inp, bytes, padbit);
> @@ -264,8 +264,7 @@ static int __init poly1305_simd_mod_init(void)
> if (boot_cpu_has(X86_FEATURE_AVX) &&
> cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL))
> static_branch_enable(&poly1305_use_avx);
> - if (IS_ENABLED(CONFIG_AS_AVX2) && boot_cpu_has(X86_FEATURE_AVX) &&
> - boot_cpu_has(X86_FEATURE_AVX2) &&
> + if (boot_cpu_has(X86_FEATURE_AVX) && boot_cpu_has(X86_FEATURE_AVX2) &&
> cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL))
> static_branch_enable(&poly1305_use_avx2);
> if (IS_ENABLED(CONFIG_AS_AVX512) && boot_cpu_has(X86_FEATURE_AVX) &&
> diff --git a/arch/x86/crypto/sha1_ssse3_glue.c b/arch/x86/crypto/sha1_ssse3_glue.c
> index 275b65dd30c9..a801ffc10cbb 100644
> --- a/arch/x86/crypto/sha1_ssse3_glue.c
> +++ b/arch/x86/crypto/sha1_ssse3_glue.c
> @@ -174,7 +174,6 @@ static void unregister_sha1_avx(void)
> crypto_unregister_shash(&sha1_avx_alg);
> }
>
> -#if defined(CONFIG_AS_AVX2)
> #define SHA1_AVX2_BLOCK_OPTSIZE 4 /* optimal 4*64 bytes of SHA1 blocks */
>
> asmlinkage void sha1_transform_avx2(struct sha1_state *state,
> @@ -246,11 +245,6 @@ static void unregister_sha1_avx2(void)
> crypto_unregister_shash(&sha1_avx2_alg);
> }
>
> -#else
> -static inline int register_sha1_avx2(void) { return 0; }
> -static inline void unregister_sha1_avx2(void) { }
> -#endif
> -
> #ifdef CONFIG_AS_SHA1_NI
> asmlinkage void sha1_ni_transform(struct sha1_state *digest, const u8 *data,
> int rounds);
> diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S
> index 499d9ec129de..11ff60c29c8b 100644
> --- a/arch/x86/crypto/sha256-avx2-asm.S
> +++ b/arch/x86/crypto/sha256-avx2-asm.S
> @@ -48,7 +48,6 @@
> # This code schedules 2 blocks at a time, with 4 lanes per block
> ########################################################################
>
> -#ifdef CONFIG_AS_AVX2
> #include <linux/linkage.h>
>
> ## assume buffers not aligned
> @@ -767,5 +766,3 @@ _SHUF_00BA:
> .align 32
> _SHUF_DC00:
> .octa 0x0b0a090803020100FFFFFFFFFFFFFFFF,0x0b0a090803020100FFFFFFFFFFFFFFFF
> -
> -#endif
> diff --git a/arch/x86/crypto/sha256_ssse3_glue.c b/arch/x86/crypto/sha256_ssse3_glue.c
> index 8bdc3be31f64..6394b5fe8db6 100644
> --- a/arch/x86/crypto/sha256_ssse3_glue.c
> +++ b/arch/x86/crypto/sha256_ssse3_glue.c
> @@ -220,7 +220,6 @@ static void unregister_sha256_avx(void)
> ARRAY_SIZE(sha256_avx_algs));
> }
>
> -#if defined(CONFIG_AS_AVX2)
> asmlinkage void sha256_transform_rorx(struct sha256_state *state,
> const u8 *data, int blocks);
>
> @@ -295,11 +294,6 @@ static void unregister_sha256_avx2(void)
> ARRAY_SIZE(sha256_avx2_algs));
> }
>
> -#else
> -static inline int register_sha256_avx2(void) { return 0; }
> -static inline void unregister_sha256_avx2(void) { }
> -#endif
> -
> #ifdef CONFIG_AS_SHA256_NI
> asmlinkage void sha256_ni_transform(struct sha256_state *digest,
> const u8 *data, int rounds);
> diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S
> index 3dd886b14e7d..3a44bdcfd583 100644
> --- a/arch/x86/crypto/sha512-avx2-asm.S
> +++ b/arch/x86/crypto/sha512-avx2-asm.S
> @@ -49,7 +49,6 @@
> # This code schedules 1 blocks at a time, with 4 lanes per block
> ########################################################################
>
> -#ifdef CONFIG_AS_AVX2
> #include <linux/linkage.h>
>
> .text
> @@ -749,5 +748,3 @@ PSHUFFLE_BYTE_FLIP_MASK:
> MASK_YMM_LO:
> .octa 0x00000000000000000000000000000000
> .octa 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
> -
> -#endif
> diff --git a/arch/x86/crypto/sha512_ssse3_glue.c b/arch/x86/crypto/sha512_ssse3_glue.c
> index 75214982a633..82cc1b3ced1d 100644
> --- a/arch/x86/crypto/sha512_ssse3_glue.c
> +++ b/arch/x86/crypto/sha512_ssse3_glue.c
> @@ -218,7 +218,6 @@ static void unregister_sha512_avx(void)
> ARRAY_SIZE(sha512_avx_algs));
> }
>
> -#if defined(CONFIG_AS_AVX2)
> asmlinkage void sha512_transform_rorx(struct sha512_state *state,
> const u8 *data, int blocks);
>
> @@ -293,10 +292,6 @@ static void unregister_sha512_avx2(void)
> crypto_unregister_shashes(sha512_avx2_algs,
> ARRAY_SIZE(sha512_avx2_algs));
> }
> -#else
> -static inline int register_sha512_avx2(void) { return 0; }
> -static inline void unregister_sha512_avx2(void) { }
> -#endif
>
> static int __init sha512_ssse3_mod_init(void)
> {
> diff --git a/crypto/Kconfig b/crypto/Kconfig
> index 49aae167e75c..c24a47406f8f 100644
> --- a/crypto/Kconfig
> +++ b/crypto/Kconfig
> @@ -267,7 +267,7 @@ config CRYPTO_CURVE25519
>
> config CRYPTO_CURVE25519_X86
> tristate "x86_64 accelerated Curve25519 scalar multiplication library"
> - depends on X86 && 64BIT && AS_ADX
> + depends on X86 && 64BIT
> select CRYPTO_LIB_CURVE25519_GENERIC
> select CRYPTO_ARCH_HAVE_LIB_CURVE25519
>
> @@ -465,7 +465,7 @@ config CRYPTO_NHPOLY1305_SSE2
>
> config CRYPTO_NHPOLY1305_AVX2
> tristate "NHPoly1305 hash function (x86_64 AVX2 implementation)"
> - depends on X86 && 64BIT && AS_AVX2
> + depends on X86 && 64BIT
> select CRYPTO_NHPOLY1305
> help
> AVX2 optimized implementation of the hash function used by the
> @@ -1303,7 +1303,7 @@ config CRYPTO_CAMELLIA_AESNI_AVX_X86_64
>
> config CRYPTO_CAMELLIA_AESNI_AVX2_X86_64
> tristate "Camellia cipher algorithm (x86_64/AES-NI/AVX2)"
> - depends on X86 && 64BIT && AS_AVX2
> + depends on X86 && 64BIT
> depends on CRYPTO
> select CRYPTO_CAMELLIA_AESNI_AVX_X86_64
> help
> @@ -1573,7 +1573,7 @@ config CRYPTO_SERPENT_AVX_X86_64
>
> config CRYPTO_SERPENT_AVX2_X86_64
> tristate "Serpent cipher algorithm (x86_64/AVX2)"
> - depends on X86 && 64BIT && AS_AVX2
> + depends on X86 && 64BIT
> select CRYPTO_SERPENT_AVX_X86_64
> help
> Serpent cipher algorithm, by Anderson, Biham & Knudsen.
> diff --git a/lib/raid6/algos.c b/lib/raid6/algos.c
> index b5a02326cfb7..2dc010be793e 100644
> --- a/lib/raid6/algos.c
> +++ b/lib/raid6/algos.c
> @@ -34,10 +34,8 @@ const struct raid6_calls * const raid6_algos[] = {
> &raid6_avx512x2,
> &raid6_avx512x1,
> #endif
> -#ifdef CONFIG_AS_AVX2
> &raid6_avx2x2,
> &raid6_avx2x1,
> -#endif
> &raid6_sse2x2,
> &raid6_sse2x1,
> &raid6_sse1x2,
> @@ -51,11 +49,9 @@ const struct raid6_calls * const raid6_algos[] = {
> &raid6_avx512x2,
> &raid6_avx512x1,
> #endif
> -#ifdef CONFIG_AS_AVX2
> &raid6_avx2x4,
> &raid6_avx2x2,
> &raid6_avx2x1,
> -#endif
> &raid6_sse2x4,
> &raid6_sse2x2,
> &raid6_sse2x1,
> @@ -101,9 +97,7 @@ const struct raid6_recov_calls *const raid6_recov_algos[] = {
> #ifdef CONFIG_AS_AVX512
> &raid6_recov_avx512,
> #endif
> -#ifdef CONFIG_AS_AVX2
> &raid6_recov_avx2,
> -#endif
> &raid6_recov_ssse3,
> #endif
> #ifdef CONFIG_S390
> diff --git a/lib/raid6/avx2.c b/lib/raid6/avx2.c
> index 87184b6da28a..f299476e1d76 100644
> --- a/lib/raid6/avx2.c
> +++ b/lib/raid6/avx2.c
> @@ -13,8 +13,6 @@
> *
> */
>
> -#ifdef CONFIG_AS_AVX2
> -
> #include <linux/raid/pq.h>
> #include "x86.h"
>
> @@ -470,5 +468,3 @@ const struct raid6_calls raid6_avx2x4 = {
> 1 /* Has cache hints */
> };
> #endif
> -
> -#endif /* CONFIG_AS_AVX2 */
> diff --git a/lib/raid6/recov_avx2.c b/lib/raid6/recov_avx2.c
> index 7a3b5e7f66ee..4e8095403ee2 100644
> --- a/lib/raid6/recov_avx2.c
> +++ b/lib/raid6/recov_avx2.c
> @@ -4,8 +4,6 @@
> * Author: Jim Kukunas <james.t.kukunas@...ux.intel.com>
> */
>
> -#ifdef CONFIG_AS_AVX2
> -
> #include <linux/raid/pq.h>
> #include "x86.h"
>
> @@ -313,7 +311,3 @@ const struct raid6_recov_calls raid6_recov_avx2 = {
> #endif
> .priority = 2,
> };
> -
> -#else
> -#warning "your version of binutils lacks AVX2 support"
> -#endif
> diff --git a/lib/raid6/test/Makefile b/lib/raid6/test/Makefile
> index 60021319ac78..a4c7cd74cff5 100644
> --- a/lib/raid6/test/Makefile
> +++ b/lib/raid6/test/Makefile
> @@ -35,9 +35,6 @@ endif
> ifeq ($(IS_X86),yes)
> OBJS += mmx.o sse1.o sse2.o avx2.o recov_ssse3.o recov_avx2.o avx512.o recov_avx512.o
> CFLAGS += -DCONFIG_X86
> - CFLAGS += $(shell echo "vpbroadcastb %xmm0, %ymm1" | \
> - gcc -c -x assembler - >/dev/null 2>&1 && \
> - rm ./-.o && echo -DCONFIG_AS_AVX2=1)
> CFLAGS += $(shell echo "vpmovm2b %k1, %zmm5" | \
> gcc -c -x assembler - >/dev/null 2>&1 && \
> rm ./-.o && echo -DCONFIG_AS_AVX512=1)
> --
> 2.17.1
>
--
Thanks,
~Nick Desaulniers
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