Fix bugs on SIMD flags and unit test

Author: gangliao

paddle/utils/CpuId.cpp

@@ -28,10 +28,6 @@ limitations under the License. */
 
 namespace paddle {
 
-/// init simd instance
-static InitFunction __init_simd_flags(
-    []{ SIMDFlags::instance(); }, std::numeric_limits<int>::max());
-
 SIMDFlags::SIMDFlags() {
     unsigned int cpuInfo[4];
     // CPUID: https://en.wikipedia.org/wiki/CPUID

paddle/utils/CpuId.h

@@ -24,17 +24,17 @@ class SIMDFlags final {
 
     static SIMDFlags* instance();
 
-    inline bool isSSE()       { return simd_flags_ & SIMD_SSE;   }
-    inline bool isSSE2()      { return simd_flags_ & SIMD_SSE2;  }
-    inline bool isSSE3()      { return simd_flags_ & SIMD_SSE3;  }
-    inline bool isSSSE3()     { return simd_flags_ & SIMD_SSSE3; }
-    inline bool isSSE41()     { return simd_flags_ & SIMD_SSE41; }
-    inline bool isSSE42()     { return simd_flags_ & SIMD_SSE42; }
-    inline bool isFMA3()      { return simd_flags_ & SIMD_FMA3;  }
-    inline bool isFMA4()      { return simd_flags_ & SIMD_FMA4;  }
-    inline bool isAVX()       { return simd_flags_ & SIMD_AVX;   }
-    inline bool isAVX2()      { return simd_flags_ & SIMD_AVX2;  }
-    inline bool isAVX512()    { return simd_flags_ & SIMD_AVX512;}
+    inline bool isSSE()   const { return simd_flags_ & SIMD_SSE;   }
+    inline bool isSSE2()  const { return simd_flags_ & SIMD_SSE2;  }
+    inline bool isSSE3()  const { return simd_flags_ & SIMD_SSE3;  }
+    inline bool isSSSE3() const { return simd_flags_ & SIMD_SSSE3; }
+    inline bool isSSE41() const { return simd_flags_ & SIMD_SSE41; }
+    inline bool isSSE42() const { return simd_flags_ & SIMD_SSE42; }
+    inline bool isFMA3()  const { return simd_flags_ & SIMD_FMA3;  }
+    inline bool isFMA4()  const { return simd_flags_ & SIMD_FMA4;  }
+    inline bool isAVX()   const { return simd_flags_ & SIMD_AVX;   }
+    inline bool isAVX2()  const { return simd_flags_ & SIMD_AVX2;  }
+    inline bool isAVX512()const { return simd_flags_ & SIMD_AVX512;}
 
 private:
     enum simd_t {

paddle/utils/tests/test_SIMDFlags.cpp

@@ -20,14 +20,14 @@ using namespace paddle; // NOLINT
 
 TEST(SIMDFlags, gccTest) {
 #if (defined(__GNUC__) || defined(__GNUG__)) && !(defined(__clang__))
-    CHECK(__builtin_cpu_supports("sse")   == HAS_SSE);
-    CHECK(__builtin_cpu_supports("sse2")  == HAS_SSE2);
-    CHECK(__builtin_cpu_supports("sse3")  == HAS_SSE3);
-    CHECK(__builtin_cpu_supports("ssse3") == HAS_SSSE3);
-    CHECK(__builtin_cpu_supports("sse4.1")== HAS_SSE41);
-    CHECK(__builtin_cpu_supports("sse4.2")== HAS_SSE42);
-    CHECK(__builtin_cpu_supports("avx")   == HAS_AVX);
-    CHECK(__builtin_cpu_supports("avx2")  == HAS_AVX2);
+    CHECK(!__builtin_cpu_supports("sse")   != HAS_SSE);
+    CHECK(!__builtin_cpu_supports("sse2")  != HAS_SSE2);
+    CHECK(!__builtin_cpu_supports("sse3")  != HAS_SSE3);
+    CHECK(!__builtin_cpu_supports("ssse3") != HAS_SSSE3);
+    CHECK(!__builtin_cpu_supports("sse4.1")!= HAS_SSE41);
+    CHECK(!__builtin_cpu_supports("sse4.2")!= HAS_SSE42);
+    CHECK(!__builtin_cpu_supports("avx")   != HAS_AVX);
+    CHECK(!__builtin_cpu_supports("avx2")  != HAS_AVX2);
 #endif
 }