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| author | Mattias Andrée <maandree@kth.se> | 2022-02-17 17:11:55 +0100 |
|---|---|---|
| committer | Mattias Andrée <maandree@kth.se> | 2022-02-17 17:11:55 +0100 |
| commit | 4453280480a019c0fbe6d475deef0ecb918d2806 (patch) | |
| tree | 9f9fed9fe371f2e1eb22c12c6a38d886ad5c5a5e /libar2_hash.c | |
| parent | m + use optimisations '(adds auto-executed function: libar2_init)' (diff) | |
| download | libar2-4453280480a019c0fbe6d475deef0ecb918d2806.tar.gz libar2-4453280480a019c0fbe6d475deef0ecb918d2806.tar.bz2 libar2-4453280480a019c0fbe6d475deef0ecb918d2806.tar.xz | |
m + add tests for optimisations
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to '')
| -rw-r--r-- | libar2_hash.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/libar2_hash.c b/libar2_hash.c index 80fb6d3..4dc2e82 100644 --- a/libar2_hash.c +++ b/libar2_hash.c @@ -64,6 +64,7 @@ blockxor_avx2(struct block *a_, const struct block *b_) } +/* $covered{$ (removing from coverage test because my machine does not spport AVX512F) */ LIBAR2_TARGET__("avx512f") static void blockxor_avx512f(struct block *a_, const struct block *b_) @@ -74,6 +75,7 @@ blockxor_avx512f(struct block *a_, const struct block *b_) for (i = 0; i < sizeof(*a_) / (512 / 8); i++) a[i] = _mm512_xor_si512(a[i], b[i]); } +/* $covered}$ */ static void blockxor_vanilla(struct block *a, const struct block *b) @@ -98,6 +100,7 @@ blockxor3_avx2(struct block *a_, const struct block *b_, const struct block *c_) } +/* $covered{$ (removing from coverage test because my machine does not spport AVX512F) */ LIBAR2_TARGET__("avx512f") static void blockxor3_avx512f(struct block *a_, const struct block *b_, const struct block *c_) @@ -109,6 +112,7 @@ blockxor3_avx512f(struct block *a_, const struct block *b_, const struct block * for (i = 0; i < sizeof(*a_) / (512 / 8); i++) a[i] = _mm512_xor_si512(b[i], c[i]); } +/* $covered}$ */ static void blockxor3_vanilla(struct block *a, const struct block *b, const struct block *c) @@ -132,6 +136,7 @@ blockcpy_avx2(struct block *a_, const struct block *b_) a[i] = _mm256_load_si256(&b[i]); } +/* $covered{$ (removing from coverage test because my machine does not spport AVX512F) */ LIBAR2_TARGET__("avx512f") static void blockcpy_avx512f(struct block *a_, const struct block *b_) @@ -142,6 +147,7 @@ blockcpy_avx512f(struct block *a_, const struct block *b_) for (i = 0; i < sizeof(*a_) / (512 / 8); i++) a[i] = _mm512_load_si512(&b[i]); } +/* $covered}$ */ static void blockcpy_vanilla(struct block *a, const struct block *b) @@ -674,6 +680,7 @@ libar2_init(void) if (!initialised) { #if 0 __builtin_cpu_init(); + /* $covered{$ (we know that it works, but the test cannot enter every branch) */ if (__builtin_cpu_supports("avx512f")) libar2_internal_use_avx512f__(); else if (__builtin_cpu_supports("avx2")) @@ -681,10 +688,12 @@ libar2_init(void) else if (__builtin_cpu_supports("sse2")) libar2_internal_use_sse2__(); else - libar2_internal_use_generic__(); + libar2_internal_use_generic__(); + /* $covered}$ */ #else uint32_t x; __asm__ volatile("cpuid" : "=b"(x) : "a"(7), "c"(0) : "edx"); + /* $covered{$ (we know that it works, but the test cannot enter every branch) */ if (x & ((uint32_t)1 << 16)) { libar2_internal_use_avx512f__(); } else if (x & ((uint32_t)1 << 5)) { @@ -696,6 +705,7 @@ libar2_init(void) else libar2_internal_use_generic__(); } + /* $covered}$ */ #endif initialised = 1; } |