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Test some non-power-of-2 FFT sizes #9

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Merged
merged 1 commit into from
Sep 5, 2025
Merged

Test some non-power-of-2 FFT sizes #9

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94 changes: 45 additions & 49 deletions test/test.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -231,78 +231,74 @@ void test_convolution_real (int N, bool use_avx = false)
pffft_aligned_free (work_data_ref);
}

TEST_CASE ("FFT SSE/NEON")
void run_tests_for_size (int fft_size, bool test_convolution, bool use_avx)
{
for (int i = 5; i < 20; ++i)
SECTION ("Testing Complex FFT with size: " + std::to_string (fft_size))
{
const auto fft_size = 1 << i;
SECTION ("Testing Complex FFT with size: " + std::to_string (fft_size))
{
test_fft_complex (fft_size);
}
test_fft_complex (fft_size, use_avx);
}

SECTION ("Testing Real FFT with size: " + std::to_string (fft_size))
{
test_fft_real (fft_size);
}
SECTION ("Testing Real FFT with size: " + std::to_string (fft_size))
{
test_fft_real (fft_size, use_avx);
}

SECTION ("Testing pre-allocated Complex FFT with size: " + std::to_string (fft_size))
{
test_fft_complex (fft_size, false, true);
}
SECTION ("Testing pre-allocated Complex FFT with size: " + std::to_string (fft_size))
{
test_fft_complex (fft_size, use_avx, true);
}

SECTION ("Testing pre-allocated Real FFT with size: " + std::to_string (fft_size))
{
test_fft_real (fft_size, false, true);
}
SECTION ("Testing pre-allocated Real FFT with size: " + std::to_string (fft_size))
{
test_fft_real (fft_size, use_avx, true);
}

if (test_convolution)
{
SECTION ("Testing Complex Convolution with size: " + std::to_string (fft_size))
{
test_convolution_complex (fft_size);
test_convolution_complex (fft_size, use_avx);
}

SECTION ("Testing Real Convolution with size: " + std::to_string (fft_size))
{
test_convolution_real (fft_size);
test_convolution_real (fft_size, use_avx);
}
}
}

#if defined(__SSE2__)
TEST_CASE ("FFT AVX")
TEST_CASE ("FFT SSE/NEON (Power of 2)")
{
for (int i = 5; i < 20; ++i)
{
const auto fft_size = 1 << i;
SECTION ("Testing Complex FFT with size: " + std::to_string (fft_size))
{
test_fft_complex (fft_size, true);
}

SECTION ("Testing Real FFT with size: " + std::to_string (fft_size))
{
test_fft_real (fft_size, true);
}

SECTION ("Testing pre-allocated Complex FFT with size: " + std::to_string (fft_size))
{
test_fft_complex (fft_size, true, true);
}
run_tests_for_size (fft_size, true, false);
}
}

SECTION ("Testing pre-allocated Real FFT with size: " + std::to_string (fft_size))
{
test_fft_real (fft_size, true, true);
}
TEST_CASE ("FFT SSE/NEON (Other sizes)")
{
for (int fft_size : { 96, 192, 384, 480, 5 * 128, 3 * 256, 9 * 1024 })
{
run_tests_for_size (fft_size, false, false);
}
}

SECTION ("Testing Complex Convolution with size: " + std::to_string (fft_size))
{
test_convolution_complex (fft_size, true);
}
#if defined(__SSE2__)
TEST_CASE ("FFT AVX (Power of 2)")
{
for (int i = 5; i < 20; ++i)
{
const auto fft_size = 1 << i;
run_tests_for_size (fft_size, true, true);
}
}

SECTION ("Testing Real Convolution with size: " + std::to_string (fft_size))
{
test_convolution_real (fft_size, true);
}
TEST_CASE ("FFT AVX (Other sizes)")
{
for (int fft_size : { 96, 192, 384, 480, 5 * 128, 3 * 256, 9 * 1024 })
{
run_tests_for_size (fft_size, false, true);
}
}
#endif