From: Craig Topper <craig.topper@gmail.com>
Date: Sat, 17 Dec 2011 19:55:21 +0000 (+0000)
Subject: Add -mavx2 and -mno-avx2 command line support. Also add core-avx2 processor type.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2b03bb0314cea77f0a8740609a9cccb2253ec1b1;p=clang

Add -mavx2 and -mno-avx2 command line support. Also add core-avx2 processor type.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146835 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index 745ee193cd..cf9b3d3b2e 100644
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -610,6 +610,7 @@ def mno_sse : Flag<"-mno-sse">, Group<m_x86_Features_Group>;
 def mno_ssse3 : Flag<"-mno-ssse3">, Group<m_x86_Features_Group>;
 def mno_aes : Flag<"-mno-aes">, Group<m_x86_Features_Group>;
 def mno_avx : Flag<"-mno-avx">, Group<m_x86_Features_Group>;
+def mno_avx2 : Flag<"-mno-avx2">, Group<m_x86_Features_Group>;
 
 def mno_thumb : Flag<"-mno-thumb">, Group<m_Group>;
 def marm : Flag<"-marm">, Alias<mno_thumb>;
@@ -634,6 +635,7 @@ def msse : Flag<"-msse">, Group<m_x86_Features_Group>;
 def mssse3 : Flag<"-mssse3">, Group<m_x86_Features_Group>;
 def maes : Flag<"-maes">, Group<m_x86_Features_Group>;
 def mavx : Flag<"-mavx">, Group<m_x86_Features_Group>;
+def mavx2 : Flag<"-mavx2">, Group<m_x86_Features_Group>;
 def mthumb : Flag<"-mthumb">, Group<m_Group>;
 def mtune_EQ : Joined<"-mtune=">, Group<m_Group>;
 def multi__module : Flag<"-multi_module">;
diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 6c38408c75..07e61d80ba 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -1198,6 +1198,7 @@ class X86TargetInfo : public TargetInfo {
 
   bool HasAES;
   bool HasAVX;
+  bool HasAVX2;
 
   /// \brief Enumeration of all of the X86 CPUs supported by Clang.
   ///
@@ -1279,6 +1280,7 @@ class X86TargetInfo : public TargetInfo {
     CK_Corei7,
     CK_Corei7AVX,
     CK_CoreAVXi,
+    CK_CoreAVX2,
     //@}
 
     /// \name K6
@@ -1333,7 +1335,7 @@ class X86TargetInfo : public TargetInfo {
 public:
   X86TargetInfo(const std::string& triple)
     : TargetInfo(triple), SSELevel(NoSSE), MMX3DNowLevel(NoMMX3DNow),
-      HasAES(false), HasAVX(false), CPU(CK_Generic) {
+      HasAES(false), HasAVX(false), HasAVX2(false), CPU(CK_Generic) {
     LongDoubleFormat = &llvm::APFloat::x87DoubleExtended;
   }
   virtual void getTargetBuiltins(const Builtin::Info *&Records,
@@ -1404,6 +1406,7 @@ public:
       .Case("corei7", CK_Corei7)
       .Case("corei7-avx", CK_Corei7AVX)
       .Case("core-avx-i", CK_CoreAVXi)
+      .Case("core-avx2", CK_CoreAVX2)
       .Case("k6", CK_K6)
       .Case("k6-2", CK_K6_2)
       .Case("k6-3", CK_K6_3)
@@ -1475,6 +1478,7 @@ public:
     case CK_Corei7:
     case CK_Corei7AVX:
     case CK_CoreAVXi:
+    case CK_CoreAVX2:
     case CK_Athlon64:
     case CK_Athlon64SSE3:
     case CK_AthlonFX:
@@ -1506,6 +1510,7 @@ void X86TargetInfo::getDefaultFeatures(llvm::StringMap<bool> &Features) const {
   Features["sse4a"] = false;
   Features["aes"] = false;
   Features["avx"] = false;
+  Features["avx2"] = false;
 
   // FIXME: This *really* should not be here.
 
@@ -1569,6 +1574,12 @@ void X86TargetInfo::getDefaultFeatures(llvm::StringMap<bool> &Features) const {
     setFeatureEnabled(Features, "aes", true);
     //setFeatureEnabled(Features, "avx", true);
     break;
+  case CK_CoreAVX2:
+    setFeatureEnabled(Features, "mmx", true);
+    setFeatureEnabled(Features, "sse4", true);
+    setFeatureEnabled(Features, "aes", true);
+    //setFeatureEnabled(Features, "avx2", true);
+    break;
   case CK_K6:
   case CK_WinChipC6:
     setFeatureEnabled(Features, "mmx", true);
@@ -1661,6 +1672,10 @@ bool X86TargetInfo::setFeatureEnabled(llvm::StringMap<bool> &Features,
       Features["mmx"] = Features["sse"] = Features["sse2"] = Features["sse3"] =
         Features["ssse3"] = Features["sse41"] = Features["sse42"] =
         Features["avx"] = true;
+    else if (Name == "avx2")
+      Features["mmx"] = Features["sse"] = Features["sse2"] = Features["sse3"] =
+        Features["ssse3"] = Features["sse41"] = Features["sse42"] =
+        Features["avx"] = Features["avx2"] = true;
     else if (Name == "sse4a")
       Features["mmx"] = Features["sse4a"] = true;
   } else {
@@ -1688,7 +1703,9 @@ bool X86TargetInfo::setFeatureEnabled(llvm::StringMap<bool> &Features,
     else if (Name == "aes")
       Features["aes"] = false;
     else if (Name == "avx")
-      Features["avx"] = false;
+      Features["avx"] = Features["avx2"] = false;
+    else if (Name == "avx2")
+      Features["avx2"] = false;
     else if (Name == "sse4a")
       Features["sse4a"] = false;
   }
@@ -1712,6 +1729,11 @@ void X86TargetInfo::HandleTargetFeatures(std::vector<std::string> &Features) {
 
     // FIXME: Not sure yet how to treat AVX in regard to SSE levels.
     // For now let it be enabled together with other SSE levels.
+    if (Features[i].substr(1) == "avx2") {
+      HasAVX = true;
+      HasAVX2 = true;
+      continue;
+    }
     if (Features[i].substr(1) == "avx") {
       HasAVX = true;
       continue;
@@ -1840,6 +1862,7 @@ void X86TargetInfo::getTargetDefines(const LangOptions &Opts,
   case CK_Corei7:
   case CK_Corei7AVX:
   case CK_CoreAVXi:
+  case CK_CoreAVX2:
     Builder.defineMacro("__corei7");
     Builder.defineMacro("__corei7__");
     Builder.defineMacro("__tune_corei7__");
@@ -1923,6 +1946,8 @@ void X86TargetInfo::getTargetDefines(const LangOptions &Opts,
 
   if (HasAVX)
     Builder.defineMacro("__AVX__");
+  if (HasAVX2)
+    Builder.defineMacro("__AVX2__");
 
   // Each case falls through to the previous one here.
   switch (SSELevel) {