Implementation notes: amd64, h6sandy, crypto_kem/remblem1056

Computer: h6sandy
Microarchitecture: amd64; Sandy Bridge (206a7)
Architecture: amd64
CPU ID: GenuineIntel-000206a7-bfebfbff
SUPERCOP version: 20240625
Operation: crypto_kem
Primitive: remblem1056

Compiler output

kem.c: kem.c:97:16: warning: unused variable 'D_tmp' [-Wunused-variable]
kem.c:         unsigned char D_tmp[32];
kem.c:                       ^
kem.c: kem.c:198:9: warning: unused variable 'j' [-Wunused-variable]
kem.c:         int i, j;
kem.c:                ^
kem.c: kem.c:322:16: warning: unused variable 'j' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                ^
kem.c: kem.c:322:19: warning: unused variable 'bit' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                   ^
kem.c: kem.c:366:24: warning: passing 'int *' to parameter of type 'unsigned int *' converts between pointers to integer types with different sign [-Wpointer-sign]
kem.c:         bytes_from_modq(pk+32,pPubKey_B,CRYPTO_R_n);
kem.c:                               ^~~~~~~~~
kem.c: kem.c:27:60: note: passing argument to parameter 'x' here
kem.c: static void bytes_from_modq(unsigned char *y,unsigned int *x,int xlen)
kem.c:                                                            ^
kem.c: kem.c:340:12: warning: unused variable 'bit' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                   ^
kem.c: kem.c:340:9: warning: unused variable 'j' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                ^
kem.c: kem.c:454:6: warning: unused variable 'tmp' [-Wunused-variable]
kem.c: ...

Number of similar (implementation,compiler) pairs: 2, namely:

Implementation	Compiler
`T:ref`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:ref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`

Compiler output

kem.c: kem.c:97:16: warning: unused variable 'D_tmp' [-Wunused-variable]
kem.c:         unsigned char D_tmp[32];
kem.c:                       ^
kem.c: kem.c:198:9: warning: unused variable 'j' [-Wunused-variable]
kem.c:         int i, j;
kem.c:                ^
kem.c: kem.c:322:19: warning: unused variable 'bit' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                   ^
kem.c: kem.c:322:16: warning: unused variable 'j' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                ^
kem.c: kem.c:366:24: warning: passing 'int *' to parameter of type 'unsigned int *' converts between pointers to integer types with different sign [-Wpointer-sign]
kem.c:         bytes_from_modq(pk+32,pPubKey_B,CRYPTO_R_n);
kem.c:                               ^~~~~~~~~
kem.c: kem.c:27:60: note: passing argument to parameter 'x' here
kem.c: static void bytes_from_modq(unsigned char *y,unsigned int *x,int xlen)
kem.c:                                                            ^
kem.c: kem.c:340:9: warning: unused variable 'j' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                ^
kem.c: kem.c:340:12: warning: unused variable 'bit' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                   ^
kem.c: kem.c:454:6: warning: unused variable 'tmp' [-Wunused-variable]
kem.c: ...

Number of similar (implementation,compiler) pairs: 3, namely:

Implementation	Compiler
`T:ref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:ref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`
`T:ref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Ubuntu_Clang_14.0.0)`

Compiler output

kem.c: kem.c: In function 'SHA256_OS':
kem.c: kem.c:97:23: warning: unused variable 'D_tmp' [-Wunused-variable]
kem.c:    97 |         unsigned char D_tmp[32];
kem.c:       |                       ^~~~~
kem.c: kem.c: In function 'p_add':
kem.c: kem.c:198:16: warning: unused variable 'j' [-Wunused-variable]
kem.c:   198 |         int i, j;
kem.c:       |                ^
kem.c: kem.c: In function 'keys_from_pk':
kem.c: kem.c:322:19: warning: unused variable 'bit' [-Wunused-variable]
kem.c:   322 |         int i, j, bit;
kem.c:       |                   ^~~
kem.c: kem.c:322:16: warning: unused variable 'j' [-Wunused-variable]
kem.c:   322 |         int i, j, bit;
kem.c:       |                ^
kem.c: kem.c: In function 'keys_from_sk':
kem.c: kem.c:366:31: warning: pointer targets in passing argument 2 of 'bytes_from_modq' differ in signedness [-Wpointer-sign]
kem.c:   366 |         bytes_from_modq(pk+32,pPubKey_B,CRYPTO_R_n);
kem.c:       |                               ^~~~~~~~~
kem.c:       |                               |
kem.c:       |                               int *
kem.c: kem.c:27:60: note: expected 'unsigned int *' but argument is of type 'int *'
kem.c:    27 | static void bytes_from_modq(unsigned char *y,unsigned int *x,int xlen)
kem.c:       |                                              ~~~~~~~~~~~~~~^
kem.c: kem.c:340:19: warning: unused variable 'bit' [-Wunused-variable]
kem.c: ...

Number of similar (implementation,compiler) pairs: 4, namely:

Implementation	Compiler
`T:ref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`
`T:ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)`