Implementation notes: amd64, comet, crypto_hash/echo512

Compiler output

echo64.S: echo64.S:1064:2: error: '.att_syntax noprefix' is not supported: registers must have a '%' prefix in .att_syntax
echo64.S:  .att_syntax noprefix
echo64.S:  ^
echo64.S: echo64.S:1077:10: error: unknown token in expression
echo64.S:  movabsq $-9187201950435737472, %rax
echo64.S:          ^
echo64.S: echo64.S:1078:10: error: unknown token in expression
echo64.S:  movabsq $-9187201950435737472, %r11
echo64.S:          ^
echo64.S: echo64.S:1079:10: error: unknown token in expression
echo64.S:  movabsq $7599940337074203, %r10
echo64.S:          ^
echo64.S: echo64.S:1080:7: error: unknown token in expression
echo64.S:  movq %rax, MEM_CST+16(%rip)
echo64.S:       ^
echo64.S: echo64.S:1081:10: error: unknown token in expression
echo64.S:  movabsq $7599940337074203, %r9
echo64.S:          ^
echo64.S: echo64.S:1082:10: error: unknown token in expression
echo64.S:  movabsq $-72340172838076674, %rax
echo64.S:          ^
echo64.S: echo64.S:1083:10: error: unknown token in expression
echo64.S:  movabsq $72340172838076673, %r8
echo64.S:          ^
echo64.S: echo64.S:1084:10: error: unknown token in expression
echo64.S: ...

Compiler output

try.c: /usr/bin/ld: libcrypto_hash_echo512.a(echo64.o): relocation R_X86_64_32S against symbol `OLDCV' can not be used when making a PIE object; recompile with -fPIE
try.c: /usr/bin/ld: failed to set dynamic section sizes: bad value
try.c: collect2: error: ld returned 1 exit status

Compiler output

echo64.S: echo64.S:248:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl ebp, ah
echo64.S:  ^~~~~~
echo64.S: echo64.S:251:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl esi, al
echo64.S:  ^~~~~~
echo64.S: echo64.S:263:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl ebp, bl
echo64.S:  ^~~~~~
echo64.S: echo64.S:266:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl esi, bh
echo64.S:  ^~~~~~
echo64.S: echo64.S:278:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl ebp, al
echo64.S:  ^~~~~~
echo64.S: echo64.S:281:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl esi, ah
echo64.S:  ^~~~~~
echo64.S: echo64.S:293:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl ebp, bh
echo64.S:  ^~~~~~
echo64.S: echo64.S:296:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl esi, bl
echo64.S:  ^~~~~~
echo64.S: echo64.S:308:2: error: invalid instruction mnemonic 'movzbl'
echo64.S: ...

Compiler output

echo64.S: echo64.c: Assembler messages:
echo64.S: echo64.c:519: Error: no such instruction: `movzbl ebp,ah'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl esi,al'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl ebp,bl'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl esi,bh'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl ebp,al'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl esi,ah'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl ebp,bh'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl esi,bl'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl ebp,ah'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl esi,al'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl ebp,bl'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl esi,bh'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl ebp,al'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl esi,ah'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl ebp,bl'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl esi,bh'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl ebp,dl'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl esi,dh'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl ebp,ch'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl esi,cl'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl ebp,cl'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl esi,ch'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl ebp,dh'
echo64.S: echo64.c:519: Error: no such instruction: `movzbl esi,dl'
echo64.S: ...

Compiler output

hash.c: hash.c:263:4: error: always_inline function '_mm_shuffle_epi8' requires target feature 'ssse3', but would be inlined into function 'Compress' that is compiled without support for 'ssse3'
hash.c:                         TRANSFORM(_state[i][j], _k_ipt, t1, t2);
hash.c:                         ^
hash.c: ./vperm.h:52:7: note: expanded from macro 'TRANSFORM'
hash.c:         t1 = _mm_shuffle_epi8(*((__m128i*)table + 1), t1);\
hash.c:              ^
hash.c: hash.c:263:4: error: always_inline function '_mm_shuffle_epi8' requires target feature 'ssse3', but would be inlined into function 'Compress' that is compiled without support for 'ssse3'
hash.c: ./vperm.h:53:7: note: expanded from macro 'TRANSFORM'
hash.c:         x  = _mm_shuffle_epi8(*((__m128i*)table + 0), x);\
hash.c:              ^
hash.c: hash.c:280:5: error: always_inline function '_mm_shuffle_epi8' requires target feature 'ssse3', but would be inlined into function 'Compress' that is compiled without support for 'ssse3'
hash.c:                                 TRANSFORM(_state[i][j], _k_ipt, t1, t2);
hash.c:                                 ^
hash.c: ./vperm.h:52:7: note: expanded from macro 'TRANSFORM'
hash.c:         t1 = _mm_shuffle_epi8(*((__m128i*)table + 1), t1);\
hash.c:              ^
hash.c: hash.c:280:5: error: always_inline function '_mm_shuffle_epi8' requires target feature 'ssse3', but would be inlined into function 'Compress' that is compiled without support for 'ssse3'
hash.c: ./vperm.h:53:7: note: expanded from macro 'TRANSFORM'
hash.c:         x  = _mm_shuffle_epi8(*((__m128i*)table + 0), x);\
hash.c:              ^
hash.c: hash.c:305:4: error: always_inline function '_mm_shuffle_epi8' requires target feature 'ssse3', but would be inlined into function 'Compress' that is compiled without support for 'ssse3'
hash.c:                         ECHO_SUB_AND_MIX(_state, 0, 0, _state2, 0, 0, 1, 2, 3);
hash.c:                         ^
hash.c: hash.c:124:5: note: expanded from macro 'ECHO_SUB_AND_MIX'
hash.c:                                 AES_ROUND_VPERM_CORE(state[i][j], t1, t2, t3, t4, s1, s2, s3);\
hash.c: ...

Compiler output

hash.c: In file included from hash.c:20:
hash.c: vperm.h:57:9: warning: multi-line comment [-Wcomment]
hash.c:    57 |         //t2 = _mm_shuffle_epi8(table[0], x);\
hash.c:       |         ^

Compiler output

hash.c: hash.c:468:4: error: always_inline function '_mm_shuffle_epi8' requires target feature 'ssse3', but would be inlined into function 'Compress' that is compiled without support for 'ssse3'
hash.c:                         AES_SHIFT_ROWS(_state);
hash.c:                         ^
hash.c: hash.c:141:14: note: expanded from macro 'AES_SHIFT_ROWS'
hash.c:                         s[0][0] = _mm_shuffle_epi8(s[0][0], M128(shiftrowsslice));\
hash.c:                                   ^
hash.c: hash.c:468:4: error: always_inline function '_mm_shuffle_epi8' requires target feature 'ssse3', but would be inlined into function 'Compress' that is compiled without support for 'ssse3'
hash.c: hash.c:142:14: note: expanded from macro 'AES_SHIFT_ROWS'
hash.c:                         s[0][1] = _mm_shuffle_epi8(s[0][1], M128(shiftrowsslice));\
hash.c:                                   ^
hash.c: hash.c:468:4: error: always_inline function '_mm_shuffle_epi8' requires target feature 'ssse3', but would be inlined into function 'Compress' that is compiled without support for 'ssse3'
hash.c: hash.c:143:14: note: expanded from macro 'AES_SHIFT_ROWS'
hash.c:                         s[0][2] = _mm_shuffle_epi8(s[0][2], M128(shiftrowsslice));\
hash.c:                                   ^
hash.c: hash.c:468:4: error: always_inline function '_mm_shuffle_epi8' requires target feature 'ssse3', but would be inlined into function 'Compress' that is compiled without support for 'ssse3'
hash.c: hash.c:144:14: note: expanded from macro 'AES_SHIFT_ROWS'
hash.c:                         s[0][3] = _mm_shuffle_epi8(s[0][3], M128(shiftrowsslice));\
hash.c:                                   ^
hash.c: hash.c:468:4: error: always_inline function '_mm_shuffle_epi8' requires target feature 'ssse3', but would be inlined into function 'Compress' that is compiled without support for 'ssse3'
hash.c: hash.c:145:14: note: expanded from macro 'AES_SHIFT_ROWS'
hash.c:                         s[1][0] = _mm_shuffle_epi8(s[1][0], M128(shiftrowsslice));\
hash.c:                                   ^
hash.c: hash.c:468:4: error: always_inline function '_mm_shuffle_epi8' requires target feature 'ssse3', but would be inlined into function 'Compress' that is compiled without support for 'ssse3'
hash.c: hash.c:146:14: note: expanded from macro 'AES_SHIFT_ROWS'
hash.c:                         s[1][1] = _mm_shuffle_epi8(s[1][1], M128(shiftrowsslice));\
hash.c: ...

Compiler output

echo64.S: echo64.S:224:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl ebp, ah
echo64.S:  ^~~~~~
echo64.S: echo64.S:230:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl esi, al
echo64.S:  ^~~~~~
echo64.S: echo64.S:239:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl ebp, bl
echo64.S:  ^~~~~~
echo64.S: echo64.S:245:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl esi, bh
echo64.S:  ^~~~~~
echo64.S: echo64.S:254:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl ebp, al
echo64.S:  ^~~~~~
echo64.S: echo64.S:260:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl esi, ah
echo64.S:  ^~~~~~
echo64.S: echo64.S:269:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl ebp, bh
echo64.S:  ^~~~~~
echo64.S: echo64.S:275:2: error: invalid instruction mnemonic 'movzbl'
echo64.S:  movzbl esi, bl
echo64.S:  ^~~~~~
echo64.S: echo64.S:284:2: error: invalid instruction mnemonic 'movzbl'
echo64.S: ...

Compiler output

echo64.S: echo64.c: Assembler messages:
echo64.S: echo64.c:473: Error: no such instruction: `movzbl ebp,ah'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl esi,al'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl ebp,bl'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl esi,bh'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl ebp,al'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl esi,ah'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl ebp,bh'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl esi,bl'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl ebp,ah'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl esi,al'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl ebp,bl'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl esi,bh'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl ebp,al'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl esi,ah'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl ebp,bl'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl esi,bh'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl ebp,dl'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl esi,dh'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl ebp,ch'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl esi,cl'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl ebp,cl'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl esi,ch'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl ebp,dh'
echo64.S: echo64.c:473: Error: no such instruction: `movzbl esi,dl'
echo64.S: ...

Compiler output

echo32.c: echo32.c:105:18: warning: unused variable 'j' [-Wunused-variable]
echo32.c:         unsigned int i, j;
echo32.c:                         ^
echo32.c: echo32.c:106:16: warning: unused variable 'endianess' [-Wunused-variable]
echo32.c:         unsigned char endianess;
echo32.c:                       ^
echo32.c: echo32.c:337:15: warning: unused variable 'i' [-Wunused-variable]
echo32.c:         unsigned int i;
echo32.c:                      ^
echo32.c: echo32.c:338:21: warning: unused variable 'c0' [-Wunused-variable]
echo32.c:         unsigned long long c0, c1;
echo32.c:                            ^
echo32.c: echo32.c:338:25: warning: unused variable 'c1' [-Wunused-variable]
echo32.c:         unsigned long long c0, c1;
echo32.c:                                ^
echo32.c: echo32.c:436:21: warning: unused variable 'hashlen' [-Wunused-variable]
echo32.c:         unsigned short int hashlen = 0;
echo32.c:                            ^
echo32.c: echo32.c:437:21: warning: unused variable 'messlen_l' [-Wunused-variable]
echo32.c:         unsigned long long messlen_l = 0;
echo32.c:                            ^
echo32.c: echo32.c:438:21: warning: unused variable 'messlen_h' [-Wunused-variable]
echo32.c:         unsigned long long messlen_h = 0;
echo32.c:                            ^
echo32.c: 8 warnings generated.

Compiler output

echo32.c: echo32.c: In function 'Init':
echo32.c: echo32.c:106:23: warning: unused variable 'endianess' [-Wunused-variable]
echo32.c:   106 |         unsigned char endianess;
echo32.c:       |                       ^~~~~~~~~
echo32.c: echo32.c:105:25: warning: unused variable 'j' [-Wunused-variable]
echo32.c:   105 |         unsigned int i, j;
echo32.c:       |                         ^
echo32.c: echo32.c: In function 'Compress':
echo32.c: echo32.c:338:32: warning: unused variable 'c1' [-Wunused-variable]
echo32.c:   338 |         unsigned long long c0, c1;
echo32.c:       |                                ^~
echo32.c: echo32.c:338:28: warning: unused variable 'c0' [-Wunused-variable]
echo32.c:   338 |         unsigned long long c0, c1;
echo32.c:       |                            ^~
echo32.c: echo32.c:337:22: warning: unused variable 'i' [-Wunused-variable]
echo32.c:   337 |         unsigned int i;
echo32.c:       |                      ^
echo32.c: echo32.c: In function 'Final':
echo32.c: echo32.c:438:28: warning: unused variable 'messlen_h' [-Wunused-variable]
echo32.c:   438 |         unsigned long long messlen_h = 0;
echo32.c:       |                            ^~~~~~~~~
echo32.c: echo32.c:437:28: warning: unused variable 'messlen_l' [-Wunused-variable]
echo32.c:   437 |         unsigned long long messlen_l = 0;
echo32.c:       |                            ^~~~~~~~~
echo32.c: echo32.c:436:28: warning: unused variable 'hashlen' [-Wunused-variable]
echo32.c: ...

Compiler output

echo64.c: echo64.c:290:30: warning: unused variable 'WT5' [-Wunused-variable]
echo64.c:     WT0, WT1, WT2, WT3, WT4, WT5;
echo64.c:                              ^
echo64.c: echo64.c:432:16: warning: unused variable 'i' [-Wunused-variable]
echo64.c:   unsigned int i;
echo64.c:                ^
echo64.c: echo64.c:501:29: warning: passing 'const unsigned char *' to parameter of type 'BitSequence *' (aka 'unsigned char *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
echo64.c:   if (Hash(CRYPTO_BYTES * 8,in,inlen * 8,out) == SUCCESS) return 0;
echo64.c:                             ^~
echo64.c: echo64.c:488:46: note: passing argument to parameter 'data' here
echo64.c: HashReturn Hash(int hashbitlen, BitSequence *data, DataLength databitlen, BitSequence *hashval)
echo64.c:                                              ^
echo64.c: 3 warnings generated.

Compiler output

echo64.c: echo64.c: In function 'Compress':
echo64.c: echo64.c:290:30: warning: unused variable 'WT5' [-Wunused-variable]
echo64.c:   290 |     WT0, WT1, WT2, WT3, WT4, WT5;
echo64.c:       |                              ^~~
echo64.c: echo64.c: In function 'Final':
echo64.c: echo64.c:432:16: warning: unused variable 'i' [-Wunused-variable]
echo64.c:   432 |   unsigned int i;
echo64.c:       |                ^
echo64.c: echo64.c: In function 'crypto_hash_echo512_generic_opt64_timingleaks':
echo64.c: echo64.c:501:29: warning: passing argument 2 of 'Hash' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
echo64.c:   501 |   if (Hash(CRYPTO_BYTES * 8,in,inlen * 8,out) == SUCCESS) return 0;
echo64.c:       |                             ^~
echo64.c: echo64.c:488:46: note: expected 'BitSequence *' {aka 'unsigned char *'} but argument is of type 'const unsigned char *'
echo64.c:   488 | HashReturn Hash(int hashbitlen, BitSequence *data, DataLength databitlen, BitSequence *hashval)
echo64.c:       |                                 ~~~~~~~~~~~~~^~~~

Compiler output

echo32.S: echo32.S:323:2: error: invalid instruction mnemonic 'addd'
echo32.S:  addd [SHA3_CNT], 1
echo32.S:  ^~~~
echo32.S: echo32.S:587:2: error: invalid instruction mnemonic 'addd'
echo32.S:  addd [SHA3_CNT], 1
echo32.S:  ^~~~
echo32.S: echo32.S:851:2: error: invalid instruction mnemonic 'addd'
echo32.S:  addd [SHA3_CNT], 1
echo32.S:  ^~~~
echo32.S: echo32.S:1115:2: error: invalid instruction mnemonic 'addd'
echo32.S:  addd [SHA3_CNT], 1
echo32.S:  ^~~~
echo32.S: echo32.S:1379:2: error: invalid instruction mnemonic 'addd'
echo32.S:  addd [SHA3_CNT], 1
echo32.S:  ^~~~
echo32.S: echo32.S:1643:2: error: invalid instruction mnemonic 'addd'
echo32.S:  addd [SHA3_CNT], 1
echo32.S:  ^~~~
echo32.S: echo32.S:1907:2: error: invalid instruction mnemonic 'addd'
echo32.S:  addd [SHA3_CNT], 1
echo32.S:  ^~~~
echo32.S: echo32.S:2171:2: error: invalid instruction mnemonic 'addd'
echo32.S:  addd [SHA3_CNT], 1
echo32.S:  ^~~~
echo32.S: echo32.S:2435:2: error: invalid instruction mnemonic 'addd'
echo32.S: ...

Compiler output

try.c: /usr/bin/ld: libcrypto_hash_echo512.a(echo32.o): relocation R_X86_64_32S against symbol `SHA3_R' can not be used when making a PIE object; recompile with -fPIE
try.c: /usr/bin/ld: failed to set dynamic section sizes: bad value
try.c: collect2: error: ld returned 1 exit status

Compiler output

echo64.S: echo64.S:371:2: error: invalid instruction mnemonic 'addd'
echo64.S:  addd [SHA3_CNT], 1
echo64.S:  ^~~~
echo64.S: echo64.S:635:2: error: invalid instruction mnemonic 'addd'
echo64.S:  addd [SHA3_CNT], 1
echo64.S:  ^~~~
echo64.S: echo64.S:899:2: error: invalid instruction mnemonic 'addd'
echo64.S:  addd [SHA3_CNT], 1
echo64.S:  ^~~~
echo64.S: echo64.S:1163:2: error: invalid instruction mnemonic 'addd'
echo64.S:  addd [SHA3_CNT], 1
echo64.S:  ^~~~
echo64.S: echo64.S:1427:2: error: invalid instruction mnemonic 'addd'
echo64.S:  addd [SHA3_CNT], 1
echo64.S:  ^~~~
echo64.S: echo64.S:1691:2: error: invalid instruction mnemonic 'addd'
echo64.S:  addd [SHA3_CNT], 1
echo64.S:  ^~~~
echo64.S: echo64.S:1955:2: error: invalid instruction mnemonic 'addd'
echo64.S:  addd [SHA3_CNT], 1
echo64.S:  ^~~~
echo64.S: echo64.S:2219:2: error: invalid instruction mnemonic 'addd'
echo64.S:  addd [SHA3_CNT], 1
echo64.S:  ^~~~
echo64.S: echo64.S:2483:2: error: invalid instruction mnemonic 'addd'
echo64.S: ...

Compiler output

try.c: /usr/bin/ld: libcrypto_hash_echo512.a(echo64.o): relocation R_X86_64_32S against symbol `SHA3_R' can not be used when making a PIE object; recompile with -fPIE
try.c: /usr/bin/ld: failed to set dynamic section sizes: bad value
try.c: collect2: error: ld returned 1 exit status

Compiler output

echo32.c: echo32.c:106:18: warning: unused variable 'j' [-Wunused-variable]
echo32.c:         unsigned int i, j;
echo32.c:                         ^
echo32.c: echo32.c:107:16: warning: unused variable 'endianess' [-Wunused-variable]
echo32.c:         unsigned char endianess;
echo32.c:                       ^
echo32.c: echo32.c:472:21: warning: unused variable 'c0' [-Wunused-variable]
echo32.c:         unsigned long long c0, c1;
echo32.c:                            ^
echo32.c: echo32.c:472:25: warning: unused variable 'c1' [-Wunused-variable]
echo32.c:         unsigned long long c0, c1;
echo32.c:                                ^
echo32.c: echo32.c:599:21: warning: unused variable 'hashlen' [-Wunused-variable]
echo32.c:         unsigned short int hashlen = 0;
echo32.c:                            ^
echo32.c: echo32.c:600:21: warning: unused variable 'messlen_l' [-Wunused-variable]
echo32.c:         unsigned long long messlen_l = 0;
echo32.c:                            ^
echo32.c: echo32.c:601:21: warning: unused variable 'messlen_h' [-Wunused-variable]
echo32.c:         unsigned long long messlen_h = 0;
echo32.c:                            ^
echo32.c: 7 warnings generated.

Compiler output

echo32.c: echo32.c: In function 'Init':
echo32.c: echo32.c:107:23: warning: unused variable 'endianess' [-Wunused-variable]
echo32.c:   107 |         unsigned char endianess;
echo32.c:       |                       ^~~~~~~~~
echo32.c: echo32.c:106:25: warning: unused variable 'j' [-Wunused-variable]
echo32.c:   106 |         unsigned int i, j;
echo32.c:       |                         ^
echo32.c: echo32.c: In function 'Compress':
echo32.c: echo32.c:472:32: warning: unused variable 'c1' [-Wunused-variable]
echo32.c:   472 |         unsigned long long c0, c1;
echo32.c:       |                                ^~
echo32.c: echo32.c:472:28: warning: unused variable 'c0' [-Wunused-variable]
echo32.c:   472 |         unsigned long long c0, c1;
echo32.c:       |                            ^~
echo32.c: echo32.c: In function 'Final':
echo32.c: echo32.c:601:28: warning: unused variable 'messlen_h' [-Wunused-variable]
echo32.c:   601 |         unsigned long long messlen_h = 0;
echo32.c:       |                            ^~~~~~~~~
echo32.c: echo32.c:600:28: warning: unused variable 'messlen_l' [-Wunused-variable]
echo32.c:   600 |         unsigned long long messlen_l = 0;
echo32.c:       |                            ^~~~~~~~~
echo32.c: echo32.c:599:28: warning: unused variable 'hashlen' [-Wunused-variable]
echo32.c:   599 |         unsigned short int hashlen = 0;
echo32.c:       |                            ^~~~~~~

Compiler output

echo32.c: echo32.c:106:18: warning: unused variable 'j' [-Wunused-variable]
echo32.c:         unsigned int i, j;
echo32.c:                         ^
echo32.c: echo32.c:107:16: warning: unused variable 'endianess' [-Wunused-variable]
echo32.c:         unsigned char endianess;
echo32.c:                       ^
echo32.c: echo32.c:440:21: warning: unused variable 'c0' [-Wunused-variable]
echo32.c:         unsigned long long c0, c1;
echo32.c:                            ^
echo32.c: echo32.c:440:25: warning: unused variable 'c1' [-Wunused-variable]
echo32.c:         unsigned long long c0, c1;
echo32.c:                                ^
echo32.c: echo32.c:567:21: warning: unused variable 'hashlen' [-Wunused-variable]
echo32.c:         unsigned short int hashlen = 0;
echo32.c:                            ^
echo32.c: echo32.c:568:21: warning: unused variable 'messlen_l' [-Wunused-variable]
echo32.c:         unsigned long long messlen_l = 0;
echo32.c:                            ^
echo32.c: echo32.c:569:21: warning: unused variable 'messlen_h' [-Wunused-variable]
echo32.c:         unsigned long long messlen_h = 0;
echo32.c:                            ^
echo32.c: 7 warnings generated.

Compiler output

echo32.c: echo32.c: In function 'Init':
echo32.c: echo32.c:107:23: warning: unused variable 'endianess' [-Wunused-variable]
echo32.c:   107 |         unsigned char endianess;
echo32.c:       |                       ^~~~~~~~~
echo32.c: echo32.c:106:25: warning: unused variable 'j' [-Wunused-variable]
echo32.c:   106 |         unsigned int i, j;
echo32.c:       |                         ^
echo32.c: echo32.c: In function 'Compress':
echo32.c: echo32.c:440:32: warning: unused variable 'c1' [-Wunused-variable]
echo32.c:   440 |         unsigned long long c0, c1;
echo32.c:       |                                ^~
echo32.c: echo32.c:440:28: warning: unused variable 'c0' [-Wunused-variable]
echo32.c:   440 |         unsigned long long c0, c1;
echo32.c:       |                            ^~
echo32.c: echo32.c: In function 'Final':
echo32.c: echo32.c:569:28: warning: unused variable 'messlen_h' [-Wunused-variable]
echo32.c:   569 |         unsigned long long messlen_h = 0;
echo32.c:       |                            ^~~~~~~~~
echo32.c: echo32.c:568:28: warning: unused variable 'messlen_l' [-Wunused-variable]
echo32.c:   568 |         unsigned long long messlen_l = 0;
echo32.c:       |                            ^~~~~~~~~
echo32.c: echo32.c:567:28: warning: unused variable 'hashlen' [-Wunused-variable]
echo32.c:   567 |         unsigned short int hashlen = 0;
echo32.c:       |                            ^~~~~~~