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[src/trunk]: src/sys/crypto Fix some clang neon intrinsics.



details:   https://anonhg.NetBSD.org/src/rev/41562cee5bb0
branches:  trunk
changeset: 974701:41562cee5bb0
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sun Aug 09 02:49:38 2020 +0000

description:
Fix some clang neon intrinsics.

Compile-tested only, with -Wno-nonportable-vector-initializers.  Need
to address -- and test -- this stuff properly but this is progress.

diffstat:

 sys/crypto/aes/arch/arm/arm_neon.h    |  46 +++++++++++++++++++++++++---------
 sys/crypto/chacha/arch/arm/arm_neon.h |  46 +++++++++++++++++++++++++---------
 2 files changed, 66 insertions(+), 26 deletions(-)

diffs (168 lines):

diff -r ef9cdc34c748 -r 41562cee5bb0 sys/crypto/aes/arch/arm/arm_neon.h
--- a/sys/crypto/aes/arch/arm/arm_neon.h        Sun Aug 09 02:48:38 2020 +0000
+++ b/sys/crypto/aes/arch/arm/arm_neon.h        Sun Aug 09 02:49:38 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: arm_neon.h,v 1.9 2020/08/09 02:48:38 riastradh Exp $   */
+/*     $NetBSD: arm_neon.h,v 1.10 2020/08/09 02:49:38 riastradh Exp $  */
 
 /*-
  * Copyright (c) 2020 The NetBSD Foundation, Inc.
@@ -85,6 +85,8 @@
 typedef __attribute__((neon_vector_type(4))) uint32_t uint32x4_t;
 typedef __attribute__((neon_vector_type(8))) uint16_t uint16x8_t;
 
+typedef __attribute__((neon_vector_type(8))) int8_t int8x8_t;
+
 typedef __attribute__((neon_vector_type(8))) uint8_t uint8x8_t;
 
 typedef struct { uint8x8_t val[2]; } uint8x8x2_t;
@@ -218,7 +220,7 @@
            15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0);                           \
        uint8x16_t __r = __builtin_neon_vextq_v((int8x16_t)__lo_r,            \
            (int8x16_t)__hi_r, (__i), 48);                                    \
-       return __builtin_shufflevector(__r, __r,                              \
+       __builtin_shufflevector(__r, __r,                                     \
            15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0);                           \
 })
 #endif /* __LITTLE_ENDIAN */
@@ -326,19 +328,37 @@
        return (uint8x16_t)__out64;
 #endif
 #elif defined(__clang__)
-#ifdef __LITTLE_ENDIAN__
-       return (uint8x16_t)__builtin_neon_vqtbl1q_v((int8x16_t)__tab,
-           (int8x16_t)__idx, 48);
-#else
-       uint32x4_t __lo_r = __builtin_shufflevector(__lo, __lo,
+#ifndef __LITTLE_ENDIAN__
+       __tab = __builtin_shufflevector(__tab, __tab,
            15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0);
-       uint32x4_t __hi_r = __builtin_shufflevector(__hi, __hi,
-           15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0);
-       uint32x4_t __r = __builtin_neon_vqtbl1q_v((int8x16_t)__tab,
-           (int8x16_t)__idx, __i, 48);
-       return __builtin_shufflevector(__r, __r,
+       __idx = __builtin_shufflevector(__idx, __idx,
            15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0);
 #endif
+       uint8x16_t __r;
+#ifdef __aarch64__
+       __r = __builtin_neon_vqtbl1q_v((int8x16_t)__tab, (int8x16_t)__idx, 48);
+#else
+       uint64x2_t __tab64 = (uint64x2_t)__tab;
+       uint8x8_t __tablo = (uint8x8_t)__tab64[0];
+       uint8x8_t __tabhi = (uint8x8_t)__tab64[1];
+       uint64x2_t __idx64, __out64;
+       int8x8_t __idxlo, __idxhi, __outlo, __outhi;
+
+       __idx64 = (uint64x2_t)__idx;
+       __idxlo = (int8x8_t)__idx64[0];
+       __idxhi = (int8x8_t)__idx64[1];
+       __outlo = (uint8x8_t)__builtin_neon_vtbl2_v((int8x8_t)__tablo,
+           (int8x8_t)__tabhi, (int8x8_t)__idxlo, 16);
+       __outhi = (uint8x8_t)__builtin_neon_vtbl2_v((int8x8_t)__tablo,
+           (int8x8_t)__tabhi, (int8x8_t)__idxhi, 16);
+       __out64 = (uint64x2_t) { (uint64_t)__outlo, (uint64_t)__outhi };
+       __r = (uint8x16_t)__out64;
+#endif
+#ifndef __LITTLE_ENDIAN__
+       __r = __builtin_shufflevector(__r, __r,
+           15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0);
+#endif
+       return __r;
 #endif
 }
 
@@ -579,7 +599,7 @@
        (int32x4_t)__builtin_neon_vsriq_n_v((int32x4_t)(__vins),              \
            (int32x4_t)(__vsh), (__bits), 34)
 #else
-#define        vsliq_n_s32(__vins, __vsh, __bits) (                                  \
+#define        vsriq_n_s32(__vins, __vsh, __bits) (                                  \
 {                                                                            \
        int32x4_t __tvins = (__vins);                                         \
        int32x4_t __tvsh = (__vsh);                                           \
diff -r ef9cdc34c748 -r 41562cee5bb0 sys/crypto/chacha/arch/arm/arm_neon.h
--- a/sys/crypto/chacha/arch/arm/arm_neon.h     Sun Aug 09 02:48:38 2020 +0000
+++ b/sys/crypto/chacha/arch/arm/arm_neon.h     Sun Aug 09 02:49:38 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: arm_neon.h,v 1.5 2020/08/09 02:48:38 riastradh Exp $   */
+/*     $NetBSD: arm_neon.h,v 1.6 2020/08/09 02:49:38 riastradh Exp $   */
 
 /*-
  * Copyright (c) 2020 The NetBSD Foundation, Inc.
@@ -85,6 +85,8 @@
 typedef __attribute__((neon_vector_type(4))) uint32_t uint32x4_t;
 typedef __attribute__((neon_vector_type(8))) uint16_t uint16x8_t;
 
+typedef __attribute__((neon_vector_type(8))) int8_t int8x8_t;
+
 typedef __attribute__((neon_vector_type(8))) uint8_t uint8x8_t;
 
 typedef struct { uint8x8_t val[2]; } uint8x8x2_t;
@@ -218,7 +220,7 @@
            15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0);                           \
        uint8x16_t __r = __builtin_neon_vextq_v((int8x16_t)__lo_r,            \
            (int8x16_t)__hi_r, (__i), 48);                                    \
-       return __builtin_shufflevector(__r, __r,                              \
+       __builtin_shufflevector(__r, __r,                                     \
            15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0);                           \
 })
 #endif /* __LITTLE_ENDIAN */
@@ -326,19 +328,37 @@
        return (uint8x16_t)__out64;
 #endif
 #elif defined(__clang__)
-#ifdef __LITTLE_ENDIAN__
-       return (uint8x16_t)__builtin_neon_vqtbl1q_v((int8x16_t)__tab,
-           (int8x16_t)__idx, 48);
-#else
-       uint32x4_t __lo_r = __builtin_shufflevector(__lo, __lo,
+#ifndef __LITTLE_ENDIAN__
+       __tab = __builtin_shufflevector(__tab, __tab,
            15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0);
-       uint32x4_t __hi_r = __builtin_shufflevector(__hi, __hi,
-           15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0);
-       uint32x4_t __r = __builtin_neon_vqtbl1q_v((int8x16_t)__tab,
-           (int8x16_t)__idx, __i, 48);
-       return __builtin_shufflevector(__r, __r,
+       __idx = __builtin_shufflevector(__idx, __idx,
            15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0);
 #endif
+       uint8x16_t __r;
+#ifdef __aarch64__
+       __r = __builtin_neon_vqtbl1q_v((int8x16_t)__tab, (int8x16_t)__idx, 48);
+#else
+       uint64x2_t __tab64 = (uint64x2_t)__tab;
+       uint8x8_t __tablo = (uint8x8_t)__tab64[0];
+       uint8x8_t __tabhi = (uint8x8_t)__tab64[1];
+       uint64x2_t __idx64, __out64;
+       int8x8_t __idxlo, __idxhi, __outlo, __outhi;
+
+       __idx64 = (uint64x2_t)__idx;
+       __idxlo = (int8x8_t)__idx64[0];
+       __idxhi = (int8x8_t)__idx64[1];
+       __outlo = (uint8x8_t)__builtin_neon_vtbl2_v((int8x8_t)__tablo,
+           (int8x8_t)__tabhi, (int8x8_t)__idxlo, 16);
+       __outhi = (uint8x8_t)__builtin_neon_vtbl2_v((int8x8_t)__tablo,
+           (int8x8_t)__tabhi, (int8x8_t)__idxhi, 16);
+       __out64 = (uint64x2_t) { (uint64_t)__outlo, (uint64_t)__outhi };
+       __r = (uint8x16_t)__out64;
+#endif
+#ifndef __LITTLE_ENDIAN__
+       __r = __builtin_shufflevector(__r, __r,
+           15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0);
+#endif
+       return __r;
 #endif
 }
 
@@ -579,7 +599,7 @@
        (int32x4_t)__builtin_neon_vsriq_n_v((int32x4_t)(__vins),              \
            (int32x4_t)(__vsh), (__bits), 34)
 #else
-#define        vsliq_n_s32(__vins, __vsh, __bits) (                                  \
+#define        vsriq_n_s32(__vins, __vsh, __bits) (                                  \
 {                                                                            \
        int32x4_t __tvins = (__vins);                                         \
        int32x4_t __tvsh = (__vsh);                                           \



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