Merge pull request #2101 from Tilka/intrinsics

Clean up the intrinsics #ifdef mess with a common header

Source/Core/Common/Atomic_Win32.h

@@ -6,10 +6,10 @@
 
 #pragma once
 
-#include <intrin.h>
 #include <Windows.h>
 
 #include "Common/Common.h"
+#include "Common/Intrinsics.h"
 
 // Atomic operations are performed in a single step by the CPU. It is
 // impossible for other threads to see the operation "half-done."

Source/Core/Common/Common.h

@@ -129,22 +129,6 @@ private:
 // wxWidgets does not have a true dummy macro for this.
 #define _trans(a) a
 
-#if defined _M_GENERIC
-#  define _M_SSE 0x0
-#elif defined __GNUC__
-# if defined __SSE4_2__
-#  define _M_SSE 0x402
-# elif defined __SSE4_1__
-#  define _M_SSE 0x401
-# elif defined __SSSE3__
-#  define _M_SSE 0x301
-# elif defined __SSE3__
-#  define _M_SSE 0x300
-# endif
-#elif (_MSC_VER >= 1500) || __INTEL_COMPILER // Visual Studio 2008
-#  define _M_SSE 0x402
-#endif
-
 // Host communication.
 enum HOST_COMM
 {

Source/Core/Common/CommonFuncs.h

@@ -34,24 +34,6 @@ struct ArraySizeImpl : public std::extent<T>
 #define b32(x)  (b16(x) | (b16(x) >>16) )
 #define ROUND_UP_POW2(x)  (b32(x - 1) + 1)
 
-#ifndef __GNUC_PREREQ
-	#define __GNUC_PREREQ(a, b) 0
-#endif
-
-#if (defined __GNUC__ && !__GNUC_PREREQ(4,9)) && \
-    !defined __SSSE3__ && defined _M_X86
-#include <emmintrin.h>
-static __inline __m128i __attribute__((__always_inline__))
-_mm_shuffle_epi8(__m128i a, __m128i mask)
-{
-	__m128i result;
-	__asm__("pshufb %1, %0"
-		: "=x" (result)
-		: "xm" (mask), "0" (a));
-	return result;
-}
-#endif
-
 #ifndef _WIN32
 
 #include <errno.h>

Source/Core/Common/Hash.cpp

@@ -4,11 +4,9 @@
 
 #include <algorithm>
 #include "Common/CommonFuncs.h"
-#include "Common/Hash.h"
-#if _M_SSE >= 0x402
 #include "Common/CPUDetect.h"
-#include <nmmintrin.h>
-#endif
+#include "Common/Hash.h"
+#include "Common/Intrinsics.h"
 
 static u64 (*ptrHashFunction)(const u8 *src, u32 len, u32 samples) = &GetMurmurHash3;
 

Source/Core/Common/Intrinsics.h

@@ -0,0 +1,51 @@
+// Copyright 2015 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#pragma once
+
+#ifdef _M_X86
+
+#ifdef _MSC_VER
+#include <intrin.h>
+#else
+#include <x86intrin.h>
+#endif
+
+#ifndef __GNUC_PREREQ
+#define __GNUC_PREREQ(maj, min) 0
+#endif
+
+#if defined __GNUC__ && !__GNUC_PREREQ(4, 9) && !defined __SSSE3__
+// GCC <= 4.8 only enables intrinsics based on the command-line.
+// GCC >= 4.9 always declares all intrinsics.
+// We only want to require SSE2 and thus compile with -msse2,
+// so define the one post-SSE2 intrinsic that we dispatch at runtime.
+static __inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_shuffle_epi8(__m128i a, __m128i mask)
+{
+	__m128i result;
+	__asm__("pshufb %1, %0"
+		: "=x" (result)
+		: "xm" (mask), "0" (a));
+	return result;
+}
+#endif
+
+#if defined _M_GENERIC
+#  define _M_SSE 0
+#elif _MSC_VER || __INTEL_COMPILER
+#  define _M_SSE 0x402
+#elif defined __GNUC__
+# if defined __SSE4_2__
+#  define _M_SSE 0x402
+# elif defined __SSE4_1__
+#  define _M_SSE 0x401
+# elif defined __SSSE3__
+#  define _M_SSE 0x301
+# elif defined __SSE3__
+#  define _M_SSE 0x300
+# endif
+#endif
+
+#endif // _M_X86

Source/Core/Common/x64CPUDetect.cpp

@@ -7,13 +7,9 @@
 
 #include "Common/CommonTypes.h"
 #include "Common/CPUDetect.h"
+#include "Common/Intrinsics.h"
 
-#ifdef _WIN32
-#include <intrin.h>
-#else
-
-//#include <config/i386/cpuid.h>
-#include <xmmintrin.h>
+#ifndef _WIN32
 
 #if defined __FreeBSD__
 #include <sys/types.h>

Source/Core/Common/x64FPURoundMode.cpp

@@ -7,12 +7,7 @@
 #include "Common/CommonTypes.h"
 #include "Common/CPUDetect.h"
 #include "Common/FPURoundMode.h"
-
-#ifdef _WIN32
-#	include <mmintrin.h>
-#else
-#	include <xmmintrin.h>
-#endif
+#include "Common/Intrinsics.h"
 
 namespace FPURoundMode
 {

Source/Core/Core/DSP/DSPHWInterface.cpp

@@ -25,6 +25,7 @@
 
 #include "Common/Atomic.h"
 #include "Common/CPUDetect.h"
+#include "Common/Intrinsics.h"
 #include "Common/MemoryUtil.h"
 #include "Common/Thread.h"
 
@@ -36,10 +37,6 @@
 #include "Core/DSP/DSPInterpreter.h"
 #include "Core/DSP/DSPTables.h"
 
-#if _M_SSE >= 0x301 && !(defined __GNUC__ && !defined __SSSE3__)
-#include <tmmintrin.h>
-#endif
-
 static void gdsp_do_dma();
 
 void gdsp_ifx_init()

Source/Core/Core/PowerPC/Jit64IL/JitIL.cpp

@@ -9,6 +9,7 @@
 #include <string>
 
 #include "Common/Common.h"
+#include "Common/Intrinsics.h"
 #include "Common/StdMakeUnique.h"
 #include "Common/StringUtil.h"
 #include "Core/PatchEngine.h"
@@ -135,11 +136,9 @@ ps_adds1
 
 #ifdef _WIN32
 #include <windows.h>
-#include <intrin.h>
 #else
 #include <memory>
 #include <stdint.h>
-#include <x86intrin.h>
 
 #if defined(__clang__)
 #if !__has_builtin(__builtin_ia32_rdtsc)

Source/Core/Core/PowerPC/JitCommon/Jit_Util.cpp

@@ -2,9 +2,8 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
 
-#include <emmintrin.h>
-
 #include "Common/CommonTypes.h"
+#include "Common/Intrinsics.h"
 #include "Common/MathUtil.h"
 
 #include "Core/HW/MMIO.h"

Source/Core/VideoBackends/OGL/TextureCache.cpp

@@ -6,10 +6,6 @@
 #include <fstream>
 #include <vector>
 
-#ifdef _WIN32
-#include <intrin.h>
-#endif
-
 #include "Common/CommonPaths.h"
 #include "Common/FileUtil.h"
 #include "Common/Hash.h"

Source/Core/VideoCommon/TextureDecoder_x64.cpp

@@ -8,18 +8,12 @@
 #include "Common/Common.h"
 //#include "VideoCommon.h" // to get debug logs
 #include "Common/CPUDetect.h"
+#include "Common/Intrinsics.h"
 
 #include "VideoCommon/LookUpTables.h"
 #include "VideoCommon/TextureDecoder.h"
 #include "VideoCommon/VideoConfig.h"
 
-#if _M_SSE >= 0x401
-#include <smmintrin.h>
-#include <emmintrin.h>
-#elif _M_SSE >= 0x301 && !(defined __GNUC__ && !defined __SSSE3__)
-#include <tmmintrin.h>
-#endif
-
 // This avoids a harmless warning from a system header in Clang;
 // see http://llvm.org/bugs/show_bug.cgi?id=16093
 #if defined(__clang__) && (__clang_major__ * 100 + __clang_minor__ < 304)

Source/Core/VideoCommon/VertexLoaderX64.cpp

@@ -1,10 +1,5 @@
-#ifdef _MSC_VER
-#include <intrin.h>
-#else
-#include <x86intrin.h>
-#endif
-
 #include "Common/CPUDetect.h"
+#include "Common/Intrinsics.h"
 #include "Common/JitRegister.h"
 #include "Common/x64ABI.h"
 #include "VideoCommon/VertexLoaderX64.h"