Remove ostream and add intrin header file

Author: gangliao

paddle/utils/CpuId.cpp

@@ -14,6 +14,8 @@ limitations under the License. */
 
 #ifdef _WIN32
 
+#include <intrin.h>
+
 /// for MSVC
 #define CPUID(info, x)  __cpuidex(info, x, 0)
 
@@ -49,7 +51,7 @@ SIMDFlags::SIMDFlags() {
     simd_flags_ |= cpuInfo[2] & (1 << 16) ? SIMD_FMA4  : SIMD_NONE;
 }
 
-SIMDFlags* SIMDFlags::instance() {
+const SIMDFlags* SIMDFlags::instance() {
     static SIMDFlags instance;
     return &instance;
 }

paddle/utils/CpuId.h

@@ -11,7 +11,6 @@ limitations under the License. */
 
 #pragma once
 
-#include <iostream>
 #include "DisableCopy.h"
 
 namespace paddle {
@@ -22,7 +21,7 @@ class SIMDFlags final {
 
     SIMDFlags();
 
-    static SIMDFlags* instance();
+    static const SIMDFlags* instance();
 
     inline bool isSSE()   const { return simd_flags_ & SIMD_SSE;   }
     inline bool isSSE2()  const { return simd_flags_ & SIMD_SSE2;  }