Implementation notes: amd64, hydra7, crypto_hash/essence512

Computer: hydra7
Microarchitecture: amd64; Sandy Bridge+AES (206a7)
Architecture: amd64
CPU ID: GenuineIntel-000206a7-bfebfbff
SUPERCOP version: 20240625
Operation: crypto_hash
Primitive: essence512

Compiler output

essence_api.c: essence_api.c: In function 'Init':
essence_api.c: essence_api.c:68:9: warning: unused variable 'byte_array' [-Wunused-variable]
essence_api.c:    68 |   byte *byte_array;
essence_api.c:       |         ^~~~~~~~~~
essence_api.c: essence_api.c: In function 'Merge_Tree_512':
essence_api.c: essence_api.c:543:46: warning: unused variable 'level_mask' [-Wunused-variable]
essence_api.c:   543 |   int i,j, blocks_per_tree, leaf_num, level, level_mask;
essence_api.c:       |                                              ^~~~~~~~~~
essence_api.c: essence_api.c:543:39: warning: unused variable 'level' [-Wunused-variable]
essence_api.c:   543 |   int i,j, blocks_per_tree, leaf_num, level, level_mask;
essence_api.c:       |                                       ^~~~~
essence_api.c: essence_api.c:543:29: warning: unused variable 'leaf_num' [-Wunused-variable]
essence_api.c:   543 |   int i,j, blocks_per_tree, leaf_num, level, level_mask;
essence_api.c:       |                             ^~~~~~~~
essence_api.c: essence_api.c:543:12: warning: unused variable 'blocks_per_tree' [-Wunused-variable]
essence_api.c:   543 |   int i,j, blocks_per_tree, leaf_num, level, level_mask;
essence_api.c:       |            ^~~~~~~~~~~~~~~
essence_api.c: essence_api.c:542:13: warning: unused variable 'root_hash' [-Wunused-variable]
essence_api.c:   542 |   uint64_t *root_hash;
essence_api.c:       |             ^~~~~~~~~
essence_api.c: essence_api.c: In function 'Merge_Tree_256':
essence_api.c: essence_api.c:764:46: warning: unused variable 'level_mask' [-Wunused-variable]
essence_api.c:   764 |   int i,j, blocks_per_tree, leaf_num, level, level_mask;
essence_api.c:       |                                              ^~~~~~~~~~
essence_api.c: essence_api.c:764:39: warning: unused variable 'level' [-Wunused-variable]
essence_api.c: ...
Number of similar (implementation,compiler) pairs: 4, namely:
ImplementationCompiler
T:gccgcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:gccgcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:gccgcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)
T:gccgcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (11.4.0)