Implementation notes: aarch64, pi3aplus, crypto_sign/sphincsf256sha256robust

Compiler output

hash_sha256x8.c: In file included from hash_sha256x8.c:10:
hash_sha256x8.c: In file included from ./sha256avx.h:3:
hash_sha256x8.c: In file included from /usr/lib/llvm-7/lib/clang/7.0.1/include/immintrin.h:28:
hash_sha256x8.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/mmintrin.h:64:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
hash_sha256x8.c:     return (__m64)__builtin_ia32_vec_init_v2si(__i, 0);
hash_sha256x8.c:            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
hash_sha256x8.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/mmintrin.h:143:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
hash_sha256x8.c:     return (__m64)__builtin_ia32_packsswb((__v4hi)__m1, (__v4hi)__m2);
hash_sha256x8.c:            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
hash_sha256x8.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/mmintrin.h:173:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
hash_sha256x8.c:     return (__m64)__builtin_ia32_packssdw((__v2si)__m1, (__v2si)__m2);
hash_sha256x8.c:            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
hash_sha256x8.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/mmintrin.h:203:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
hash_sha256x8.c:     return (__m64)__builtin_ia32_packuswb((__v4hi)__m1, (__v4hi)__m2);
hash_sha256x8.c:            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
hash_sha256x8.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/mmintrin.h:230:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
hash_sha256x8.c:     return (__m64)__builtin_ia32_punpckhbw((__v8qi)__m1, (__v8qi)__m2);
hash_sha256x8.c:            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
hash_sha256x8.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/mmintrin.h:253:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
hash_sha256x8.c:     return (__m64)__builtin_ia32_punpckhwd((__v4hi)__m1, (__v4hi)__m2);
hash_sha256x8.c:            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
hash_sha256x8.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/mmintrin.h:274:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
hash_sha256x8.c:     return (__m64)__builtin_ia32_punpckhdq((__v2si)__m1, (__v2si)__m2);
hash_sha256x8.c:            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
hash_sha256x8.c: /usr/lib/llvm-7/lib/clang/7.0.1/include/mmintrin.h:301:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
hash_sha256x8.c: ...

Compiler output

hash_sha256x8.c: In file included from hash_sha256x8.c:10:
hash_sha256x8.c: sha256avx.h:3:10: fatal error: immintrin.h: No such file or directory
hash_sha256x8.c:  #include "immintrin.h"
hash_sha256x8.c:           ^~~~~~~~~~~~~
hash_sha256x8.c: compilation terminated.

Namespace violations

address.o addr_to_bytes T
address.o copy_keypair_addr T
address.o copy_subtree_addr T
address.o set_chain_addr T
address.o set_hash_addr T
address.o set_keypair_addr T
address.o set_layer_addr T
address.o set_tree_addr T
address.o set_tree_height T
address.o set_tree_index T
address.o set_type T
fors.o fors_pk_from_sig T
fors.o fors_sign T
hash_sha256.o gen_message_random T
hash_sha256.o hash_message T
hash_sha256.o initialize_hash_function T
hash_sha256.o prf_addr T
hash_sha256.o state_seeded C
sha256.o compress_address T
sha256.o mgf1 T
sha256.o seed_state T
sha256.o sha256 T
sha256.o sha256_inc_blocks T
sha256.o sha256_inc_finalize T
sha256.o sha256_inc_init T
sha256.o state_seeded C
sign.o crypto_sign_bytes T
sign.o crypto_sign_publickeybytes T
sign.o crypto_sign_secretkeybytes T
sign.o crypto_sign_seed_keypair T
sign.o crypto_sign_seedbytes T
sign.o crypto_sign_signature T
sign.o crypto_sign_verify T
thash_sha256_robust.o state_seeded C
thash_sha256_robust.o thash T
utils.o bytes_to_ull T
utils.o compute_root T
utils.o treehash T
utils.o ull_to_bytes T
wots.o wots_gen_pk T
wots.o wots_pk_from_sig T
wots.o wots_sign T