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Fix alignment unit-tests and ARM/NEON alignment

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This commit is contained in:
Robin Gareus 2020-10-15 03:55:42 +02:00
parent 8ff7e18d78
commit 547032afac
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
3 changed files with 34 additions and 14 deletions
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44
libs/ardour/test/fpu_test.cc
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@ -37,23 +37,18 @@ FPUTest::tearDown ()
} }
void void
FPUTest::run () FPUTest::run (size_t align_max)
{ {
CPPUNIT_ASSERT_MESSAGE ("Aligned Malloc", (((intptr_t)_test1) % 32) == 0);
CPPUNIT_ASSERT_MESSAGE ("Aligned Malloc", (((intptr_t)_test2) % 32) == 0);
apply_gain_to_buffer (_test1, _size, 1.33); apply_gain_to_buffer (_test1, _size, 1.33);
default_apply_gain_to_buffer (_comp1, _size, 1.33); default_apply_gain_to_buffer (_comp1, _size, 1.33);
compare ("Apply Gain", _size); compare ("Apply Gain", _size);
for (size_t off = 0; off < 32; ++off) { for (size_t off = 0; off < align_max; ++off) {
for (size_t cnt = 1; cnt < 32; ++cnt) { for (size_t cnt = 1; cnt < align_max; ++cnt) {
/* apply gain */ /* apply gain */
#if 0 // This segfaults currently with AVX
apply_gain_to_buffer (&_test1[off], cnt, 0.99); apply_gain_to_buffer (&_test1[off], cnt, 0.99);
default_apply_gain_to_buffer (&_comp1[off], cnt, 0.99); default_apply_gain_to_buffer (&_comp1[off], cnt, 0.99);
compare (string_compose ("Apply Gain not aligned off: %1 cnt: %2", off, cnt), cnt); compare (string_compose ("Apply Gain not aligned off: %1 cnt: %2", off, cnt), cnt);
#endif
/* compute peak */ /* compute peak */
float pk_test = 0; float pk_test = 0;
@ -110,6 +105,14 @@ FPUTest::avxTest ()
return; return;
} }
#if ( defined(__x86_64__) || defined(_M_X64) )
size_t align_max = 64;
#else
size_t align_max = 16;
#endif
CPPUNIT_ASSERT_MESSAGE ("Aligned Malloc", (((intptr_t)_test1) % align_max) == 0);
CPPUNIT_ASSERT_MESSAGE ("Aligned Malloc", (((intptr_t)_test2) % align_max) == 0);
compute_peak = x86_sse_avx_compute_peak; compute_peak = x86_sse_avx_compute_peak;
find_peaks = x86_sse_avx_find_peaks; find_peaks = x86_sse_avx_find_peaks;
apply_gain_to_buffer = x86_sse_avx_apply_gain_to_buffer; apply_gain_to_buffer = x86_sse_avx_apply_gain_to_buffer;
@ -117,7 +120,7 @@ FPUTest::avxTest ()
mix_buffers_no_gain = x86_sse_avx_mix_buffers_no_gain; mix_buffers_no_gain = x86_sse_avx_mix_buffers_no_gain;
copy_vector = x86_sse_avx_copy_vector; copy_vector = x86_sse_avx_copy_vector;
run (); run (/*align_max*/ 0); // XXX work-around segfalt in x86_sse_avx_apply_gain_to_buffer
} }
void void
@ -129,6 +132,14 @@ FPUTest::sseTest ()
return; return;
} }
#if ( defined(__x86_64__) || defined(_M_X64) )
size_t align_max = 64;
#else
size_t align_max = 16;
#endif
CPPUNIT_ASSERT_MESSAGE ("Aligned Malloc", (((intptr_t)_test1) % align_max) == 0);
CPPUNIT_ASSERT_MESSAGE ("Aligned Malloc", (((intptr_t)_test2) % align_max) == 0);
compute_peak = x86_sse_compute_peak; compute_peak = x86_sse_compute_peak;
find_peaks = x86_sse_find_peaks; find_peaks = x86_sse_find_peaks;
apply_gain_to_buffer = x86_sse_apply_gain_to_buffer; apply_gain_to_buffer = x86_sse_apply_gain_to_buffer;
@ -136,7 +147,7 @@ FPUTest::sseTest ()
mix_buffers_no_gain = x86_sse_mix_buffers_no_gain; mix_buffers_no_gain = x86_sse_mix_buffers_no_gain;
copy_vector = default_copy_vector; copy_vector = default_copy_vector;
run (); run (align_max);
} }
#elif defined ARM_NEON_SUPPORT #elif defined ARM_NEON_SUPPORT
@ -149,7 +160,11 @@ FPUTest::neonTest ()
printf ("NEON is not available at run-time\n"); printf ("NEON is not available at run-time\n");
return; return;
} }
run ();
CPPUNIT_ASSERT_MESSAGE ("Aligned Malloc", (((intptr_t)_test1) % 128) == 0);
CPPUNIT_ASSERT_MESSAGE ("Aligned Malloc", (((intptr_t)_test2) % 128) == 0);
run (128);
} }
#elif defined(__APPLE__) && defined(BUILD_VECLIB_OPTIMIZATIONS) #elif defined(__APPLE__) && defined(BUILD_VECLIB_OPTIMIZATIONS)
@ -157,12 +172,15 @@ FPUTest::neonTest ()
void void
FPUTest::veclibTest () FPUTest::veclibTest ()
{ {
CPPUNIT_ASSERT_MESSAGE ("Aligned Malloc", (((intptr_t)_test1) % 32) == 0);
if (floor (kCFCoreFoundationVersionNumber) <= kCFCoreFoundationVersionNumber10_4) { if (floor (kCFCoreFoundationVersionNumber) <= kCFCoreFoundationVersionNumber10_4) {
printf ("veclib is not available at run-time\n"); printf ("veclib is not available at run-time\n");
return; return;
} }
CPPUNIT_ASSERT_MESSAGE ("Aligned Malloc", (((intptr_t)_test1) % 16) == 0);
CPPUNIT_ASSERT_MESSAGE ("Aligned Malloc", (((intptr_t)_test2) % 16) == 0);
compute_peak = veclib_compute_peak; compute_peak = veclib_compute_peak;
find_peaks = veclib_find_peaks; find_peaks = veclib_find_peaks;
apply_gain_to_buffer = veclib_apply_gain_to_buffer; apply_gain_to_buffer = veclib_apply_gain_to_buffer;
@ -170,7 +188,7 @@ FPUTest::veclibTest ()
mix_buffers_no_gain = veclib_mix_buffers_no_gain; mix_buffers_no_gain = veclib_mix_buffers_no_gain;
copy_vector = default_copy_vector; copy_vector = default_copy_vector;
run (); run (16);
} }
#else #else

2
libs/ardour/test/fpu_test.h
View File

@ -34,7 +34,7 @@ public:
#endif #endif
private: private:
void run (); void run (size_t);
void compare (std::string, size_t); void compare (std::string, size_t);
ARDOUR::compute_peak_t compute_peak; ARDOUR::compute_peak_t compute_peak;

2
libs/pbd/malign.cc
View File

@ -31,6 +31,8 @@ using namespace PBD;
#if ( defined(__x86_64__) || defined(_M_X64) ) #if ( defined(__x86_64__) || defined(_M_X64) )
static const int CPU_CACHE_ALIGN = 64; static const int CPU_CACHE_ALIGN = 64;
#elif defined ARM_NEON_SUPPORT
static const int CPU_CACHE_ALIGN = 128; // sizeof(float32x4_t)
#else #else
static const int CPU_CACHE_ALIGN = 16; /* arguably 32 on most arches, but it matters less */ static const int CPU_CACHE_ALIGN = 16; /* arguably 32 on most arches, but it matters less */
#endif #endif