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Raise an error if misalignment is detected

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This commit is contained in:
Jean Pierre Cimalando 2020-04-02 15:21:10 +02:00
parent 03289c7b80
commit bb826e8347
2 changed files with 10 additions and 2 deletions
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6
src/sfizz/effects/impl/ResonantStringAVX.cpp
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@ -19,7 +19,8 @@ Compilation options: -lang cpp -inpl -os -scal -ftz 0
#if SFIZZ_CPU_FAMILY_X86_64 || SFIZZ_CPU_FAMILY_I386 #if SFIZZ_CPU_FAMILY_X86_64 || SFIZZ_CPU_FAMILY_I386
#include <algorithm> #include <algorithm>
#include <cmath> #include <cmath>
#include <math.h> #include <stdexcept>
#include <cstdint>
namespace sfz { namespace sfz {
namespace fx { namespace fx {
@ -46,6 +47,9 @@ static void store_nth_v(__m256 &x, unsigned i, float v)
void ResonantStringAVX::init(float sample_rate) void ResonantStringAVX::init(float sample_rate)
{ {
if (reinterpret_cast<uintptr_t>(this) & 31)
throw std::runtime_error("The resonant string is misaligned for AVX");
fConst0 = _mm256_set1_ps(sample_rate); fConst0 = _mm256_set1_ps(sample_rate);
fConst1 = _mm256_div_ps(_mm256_set1_ps(6.28318548f), fConst0); fConst1 = _mm256_div_ps(_mm256_set1_ps(6.28318548f), fConst0);
fConst2 = _mm256_div_ps(_mm256_set1_ps(2.0f), fConst0); fConst2 = _mm256_div_ps(_mm256_set1_ps(2.0f), fConst0);

6
src/sfizz/effects/impl/ResonantStringSSE.cpp
View file

@ -19,7 +19,8 @@ Compilation options: -lang cpp -inpl -os -scal -ftz 0
#if SFIZZ_CPU_FAMILY_X86_64 || SFIZZ_CPU_FAMILY_I386 #if SFIZZ_CPU_FAMILY_X86_64 || SFIZZ_CPU_FAMILY_I386
#include <algorithm> #include <algorithm>
#include <cmath> #include <cmath>
#include <math.h> #include <stdexcept>
#include <cstdint>
namespace sfz { namespace sfz {
namespace fx { namespace fx {
@ -46,6 +47,9 @@ static void store_nth_v(__m128 &x, unsigned i, float v)
void ResonantStringSSE::init(float sample_rate) void ResonantStringSSE::init(float sample_rate)
{ {
if (reinterpret_cast<uintptr_t>(this) & 31)
throw std::runtime_error("The resonant string is misaligned for SSE");
fConst0 = _mm_set1_ps(sample_rate); fConst0 = _mm_set1_ps(sample_rate);
fConst1 = _mm_div_ps(_mm_set1_ps(6.28318548f), fConst0); fConst1 = _mm_div_ps(_mm_set1_ps(6.28318548f), fConst0);
fConst2 = _mm_div_ps(_mm_set1_ps(2.0f), fConst0); fConst2 = _mm_div_ps(_mm_set1_ps(2.0f), fConst0);