Implementation notes: mipso32, gcc23, crypto_aead/simple64gift

Computer: gcc23
Microarchitecture: mipso32; Octeon II (cnmips64v2)
Architecture: mipso32
CPU ID: unknown CPU ID
SUPERCOP version: 20230530
Operation: crypto_aead
Primitive: simple64gift

Compiler output

Implementation: T:ref
Security model: timingleaks
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE
GIFT_64-128.c: GIFT_64-128.c: In function 'blockcipher_encrypt':
GIFT_64-128.c: GIFT_64-128.c:47:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
GIFT_64-128.c: for(u8 i=0; i<16; i++){
GIFT_64-128.c: ^
GIFT_64-128.c: GIFT_64-128.c:47:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
GIFT_64-128.c: GIFT_64-128.c:53:12: error: redefinition of 'i'
GIFT_64-128.c: for(u8 i=0; i<8; i++){
GIFT_64-128.c: ^
GIFT_64-128.c: GIFT_64-128.c:47:12: note: previous definition of 'i' was here
GIFT_64-128.c: for(u8 i=0; i<16; i++){
GIFT_64-128.c: ^
GIFT_64-128.c: GIFT_64-128.c:53:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
GIFT_64-128.c: for(u8 i=0; i<8; i++){
GIFT_64-128.c: ^
GIFT_64-128.c: GIFT_64-128.c:67:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
GIFT_64-128.c: for(u8 r=0; r<ROUNDS; r++){
GIFT_64-128.c: ^
GIFT_64-128.c: GIFT_64-128.c:70:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
GIFT_64-128.c: for(u8 i=0; i<16; i++){
GIFT_64-128.c: ^
GIFT_64-128.c: GIFT_64-128.c:77:10: error: redefinition of 'i'
GIFT_64-128.c: for(u8 i=0; i<16; i++){
GIFT_64-128.c: ^
GIFT_64-128.c: GIFT_64-128.c:70:10: note: previous definition of 'i' was here
GIFT_64-128.c: for(u8 i=0; i<16; i++){
GIFT_64-128.c: ...

Number of similar (compiler,implementation) pairs: 4, namely:
CompilerImplementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv -fPIC -fPIE T:ref