Initial vectorization support for svml calls (short vector math library).

Differential Revision: https://reviews.llvm.org/D19544

llvm-svn: 277167

clang/include/clang/Frontend/CodeGenOptions.def

@@ -228,7 +228,7 @@ CODEGENOPT(EmitCodeView, 1, 0)
 ENUM_CODEGENOPT(Inlining, InliningMethod, 2, NoInlining)
 
 // Vector functions library to use.
-ENUM_CODEGENOPT(VecLib, VectorLibrary, 1, NoLibrary)
+ENUM_CODEGENOPT(VecLib, VectorLibrary, 2, NoLibrary)
 
 /// The default TLS model to use.
 ENUM_CODEGENOPT(DefaultTLSModel, TLSModel, 2, GeneralDynamicTLSModel)

clang/include/clang/Frontend/CodeGenOptions.h

@@ -51,8 +51,9 @@ public:
   };
 
   enum VectorLibrary {
-    NoLibrary, // Don't use any vector library.
-    Accelerate // Use the Accelerate framework.
+    NoLibrary,  // Don't use any vector library.
+    Accelerate, // Use the Accelerate framework.
+    SVML        // Intel short vector math library.
   };
 
 

clang/lib/CodeGen/BackendUtil.cpp

@@ -263,6 +263,9 @@ static TargetLibraryInfoImpl *createTLII(llvm::Triple &TargetTriple,
   case CodeGenOptions::Accelerate:
     TLII->addVectorizableFunctionsFromVecLib(TargetLibraryInfoImpl::Accelerate);
     break;
+  case CodeGenOptions::SVML:
+    TLII->addVectorizableFunctionsFromVecLib(TargetLibraryInfoImpl::SVML);
+    break;
   default:
     break;
   }

clang/lib/Frontend/CompilerInvocation.cpp

@@ -459,6 +459,8 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
     StringRef Name = A->getValue();
     if (Name == "Accelerate")
       Opts.setVecLib(CodeGenOptions::Accelerate);
+    else if (Name == "SVML")
+      Opts.setVecLib(CodeGenOptions::SVML);
     else if (Name == "none")
       Opts.setVecLib(CodeGenOptions::NoLibrary);
     else