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Compatibility improvement with old IPP versions (tested on 9.0.1);

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Manual IPP dispatcher simplification;
This commit is contained in:
Pavel Vlasov
2017-09-08 11:08:24 +03:00
parent d25cbaaba8
commit 37ab318657
3 changed files with 37 additions and 49 deletions
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modules/core/src/system.cpp
+29 -48
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@@ -1929,11 +1929,22 @@ public:
}
ippFeatures = cpuFeatures;
bool unsupported = false;
const char* pIppEnv = getenv("OPENCV_IPP");
cv::String env = pIppEnv;
if(env.size())
{
#if IPP_VERSION_X100 >= 201703
const Ipp64u minorFeatures = ippCPUID_MOVBE|ippCPUID_AES|ippCPUID_CLMUL|ippCPUID_ABR|ippCPUID_RDRAND|ippCPUID_F16C|
ippCPUID_ADCOX|ippCPUID_RDSEED|ippCPUID_PREFETCHW|ippCPUID_SHA|ippCPUID_MPX|ippCPUID_AVX512CD|ippCPUID_AVX512ER|
ippCPUID_AVX512PF|ippCPUID_AVX512BW|ippCPUID_AVX512DQ|ippCPUID_AVX512VL|ippCPUID_AVX512VBMI;
#elif IPP_VERSION_X100 >= 201700
const Ipp64u minorFeatures = ippCPUID_MOVBE|ippCPUID_AES|ippCPUID_CLMUL|ippCPUID_ABR|ippCPUID_RDRAND|ippCPUID_F16C|
ippCPUID_ADCOX|ippCPUID_RDSEED|ippCPUID_PREFETCHW|ippCPUID_SHA|ippCPUID_AVX512CD|ippCPUID_AVX512ER|
ippCPUID_AVX512PF|ippCPUID_AVX512BW|ippCPUID_AVX512DQ|ippCPUID_AVX512VL|ippCPUID_AVX512VBMI;
#else
const Ipp64u minorFeatures = 0;
#endif
env = env.toLowerCase();
if(env.substr(0, 2) == "ne")
{
@@ -1947,58 +1958,20 @@ public:
useIPP = false;
}
else if(env == "sse42")
{
if(!(cpuFeatures&ippCPUID_SSE42))
unsupported = true;
ippFeatures = ippCPUID_MMX|ippCPUID_SSE|ippCPUID_SSE2|ippCPUID_SSE3|ippCPUID_SSSE3|ippCPUID_SSE41|ippCPUID_SSE42;
ippFeatures |= (cpuFeatures&ippCPUID_AES);
ippFeatures |= (cpuFeatures&ippCPUID_CLMUL);
ippFeatures |= (cpuFeatures&ippCPUID_SHA);
}
ippFeatures = minorFeatures|ippCPUID_SSE2|ippCPUID_SSE3|ippCPUID_SSSE3|ippCPUID_SSE41|ippCPUID_SSE42;
else if(env == "avx2")
{
if(!(cpuFeatures&ippCPUID_AVX2))
unsupported = true;
ippFeatures = ippCPUID_MMX|ippCPUID_SSE|ippCPUID_SSE2|ippCPUID_SSE3|ippCPUID_SSSE3|ippCPUID_SSE41|ippCPUID_SSE42|ippCPUID_AVX|ippCPUID_AVX2;
ippFeatures |= (cpuFeatures&ippCPUID_AES);
ippFeatures |= (cpuFeatures&ippCPUID_CLMUL);
ippFeatures |= (cpuFeatures&ippCPUID_F16C);
ippFeatures |= (cpuFeatures&ippCPUID_ADCOX);
ippFeatures |= (cpuFeatures&ippCPUID_RDSEED);
ippFeatures |= (cpuFeatures&ippCPUID_PREFETCHW);
ippFeatures |= (cpuFeatures&ippCPUID_MPX);
}
ippFeatures = minorFeatures|ippCPUID_SSE2|ippCPUID_SSE3|ippCPUID_SSSE3|ippCPUID_SSE41|ippCPUID_SSE42|ippCPUID_AVX|ippCPUID_AVX2;
#if IPP_VERSION_X100 >= 201700
#if defined (_M_AMD64) || defined (__x86_64__)
else if(env == "avx512")
{
if(!(cpuFeatures&ippCPUID_AVX512F))
unsupported = true;
ippFeatures = ippCPUID_MMX|ippCPUID_SSE|ippCPUID_SSE2|ippCPUID_SSE3|ippCPUID_SSSE3|ippCPUID_SSE41|ippCPUID_SSE42|ippCPUID_AVX|ippCPUID_AVX2|ippCPUID_AVX512F;
ippFeatures |= (cpuFeatures&ippCPUID_AES);
ippFeatures |= (cpuFeatures&ippCPUID_CLMUL);
ippFeatures |= (cpuFeatures&ippCPUID_F16C);
ippFeatures |= (cpuFeatures&ippCPUID_ADCOX);
ippFeatures |= (cpuFeatures&ippCPUID_RDSEED);
ippFeatures |= (cpuFeatures&ippCPUID_PREFETCHW);
ippFeatures |= (cpuFeatures&ippCPUID_MPX);
ippFeatures |= (cpuFeatures&ippCPUID_AVX512CD);
ippFeatures |= (cpuFeatures&ippCPUID_AVX512VL);
ippFeatures |= (cpuFeatures&ippCPUID_AVX512BW);
ippFeatures |= (cpuFeatures&ippCPUID_AVX512DQ);
ippFeatures |= (cpuFeatures&ippCPUID_AVX512ER);
ippFeatures |= (cpuFeatures&ippCPUID_AVX512PF);
ippFeatures |= (cpuFeatures&ippCPUID_AVX512VBMI);
}
ippFeatures = minorFeatures|ippCPUID_SSE2|ippCPUID_SSE3|ippCPUID_SSSE3|ippCPUID_SSE41|ippCPUID_SSE42|ippCPUID_AVX|ippCPUID_AVX2|ippCPUID_AVX512F;
#endif
#endif
else
std::cerr << "ERROR: Improper value of OPENCV_IPP: " << env.c_str() << ". Correct values are: disabled, sse42, avx2, avx512 (Intel64 only)" << std::endl;
}
if(unsupported)
{
std::cerr << "WARNING: selected IPP features are not supported by CPU. IPP was initialized with default features" << std::endl;
ippFeatures = cpuFeatures;
// Trim unsupported features
ippFeatures &= cpuFeatures;
}
// Disable AVX1 since we don't track regressions for it. SSE42 will be used instead
@@ -2007,7 +1980,9 @@ public:
// IPP integrations in OpenCV support only SSE4.2, AVX2 and AVX-512 optimizations.
if(!(
#if IPP_VERSION_X100 >= 201700
cpuFeatures&ippCPUID_AVX512F ||
#endif
cpuFeatures&ippCPUID_AVX2 ||
cpuFeatures&ippCPUID_SSE42
))
@@ -2016,10 +1991,14 @@ public:
return;
}
IPP_INITIALIZER(ippFeatures)
if(ippFeatures == cpuFeatures)
IPP_INITIALIZER(0)
else
IPP_INITIALIZER(ippFeatures)
ippFeatures = ippGetEnabledCpuFeatures();
// Detect top level optimizations to make comparison easier for optimizations dependent conditions
#if IPP_VERSION_X100 >= 201700
if(ippFeatures&ippCPUID_AVX512F)
{
if((ippFeatures&ippCPUID_AVX512_SKX) == ippCPUID_AVX512_SKX)
@@ -2029,7 +2008,9 @@ public:
else
ippTopFeatures = ippCPUID_AVX512F; // Unknown AVX512 configuration
}
else if(ippFeatures&ippCPUID_AVX2)
else
#endif
if(ippFeatures&ippCPUID_AVX2)
ippTopFeatures = ippCPUID_AVX2;
else if(ippFeatures&ippCPUID_SSE42)
ippTopFeatures = ippCPUID_SSE42;