Implementation notes: amd64, h4atom, crypto_stream/cryptmtv3

Computer: h4atom
Architecture: amd64
CPU ID: GenuineIntel-000106ca-bfe9fbff
SUPERCOP version: 20160806
Operation: crypto_stream
Primitive: cryptmtv3

Time	Implementation	Compiler	Benchmark date	SUPERCOP version
12472	`e/v3`	`gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv`	20160812	20160806
12496	`e/v3`	`gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv`	20160812	20160806
13048	`e/v3`	`gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv`	20160812	20160806
13192	`e/v3`	`clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments`	20160812	20160806
14968	`e/v3`	`gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv`	20160812	20160806

Compiler output

Implementation: crypto_stream/cryptmtv3/e/v3
Compiler: clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments

cryptmt-v3.c: In file included from cryptmt-v3.c:1:
cryptmt-v3.c: ./e/cryptmt-v3.c:189:18: warning: array index 156 is past the end of the array (which contains 156 elements) [-Warray-bounds]
cryptmt-v3.c: do_recursion(ps->gt;sfmt[N], ps->gt;sfmt[POS1], ps->gt;sfmt[N - 1]);
cryptmt-v3.c: ^ ~
cryptmt-v3.c: ./e/cryptmt-v3.c:25:5: note: array 'sfmt' declared here
cryptmt-v3.c: u32 sfmt[N][4];
cryptmt-v3.c: ^
cryptmt-v3.c: ./e/cryptmt-v3.c:403:27: warning: 'memset' call operates on objects of type 'ECRYPT_ctx' while the size is based on a different type 'ECRYPT_ctx *' [-Wsizeof-pointer-memaccess]
cryptmt-v3.c: memset(ctx, 0, sizeof(ctx));
cryptmt-v3.c: ~~~ ^~~
cryptmt-v3.c: ./e/cryptmt-v3.c:403:27: note: did you mean to dereference the argument to 'sizeof' (and multiply it by the number of elements)?
cryptmt-v3.c: memset(ctx, 0, sizeof(ctx));
cryptmt-v3.c: ^~~
cryptmt-v3.c: 2 warnings generated.

Number of similar (compiler,implementation) pairs: 1, namely:

Compiler	Implementations
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments	e/v3