FADD vector emission is added

VISA emitter now can process vectorized fadd instructions.

Author: esukhov

IGC/Compiler/CISACodeGen/EmitVISAPass.cpp

@@ -4383,6 +4383,9 @@ void EmitPass::BinaryUnary(llvm::Instruction* inst, const SSource source[2], con
     case Instruction::FMul:
         Mul(source, modifier);
         break;
+    case Instruction::FAdd:
+        Add(source, modifier);
+        break;
     case Instruction::Call:
         EmitAluIntrinsic(cast<CallInst>(inst), source, modifier);
         break;
@@ -4637,6 +4640,44 @@ void EmitPass::FPTrunc(const SSource sources[2], const DstModifier& modifier) {
     }
 }
 
+
+void EmitPass::Add(const SSource sources[2], const DstModifier& modifier)
+{
+    CVariable* src[2];
+    for (int i = 0; i < 2; ++i)
+    {
+        src[i] = GetSrcVariable(sources[i]);
+    }
+
+    if (IGC_IS_FLAG_ENABLED(EnableVectorEmitter) && sources[0].value->getType()->isVectorTy() && sources[1].value->getType()->isVectorTy()) {
+
+        unsigned int VectorSize = 0;
+        if (llvm::isa<Instruction>(sources[0].value))
+            VectorSize = getVectorSize(llvm::cast<Instruction>(sources[0].value));
+
+        for (unsigned int i = 0; i < VectorSize; ++i) {
+            SetSourceModifiers(0, sources[0]);
+            SetSourceModifiers(1, sources[1]);
+
+            if (src[0]->IsUniform())
+                m_encoder->SetSrcSubReg(0, i);
+            else
+                m_encoder->SetSrcSubVar(0, i);
+            if (src[1]->IsUniform())
+                m_encoder->SetSrcSubReg(1, i);
+            else
+                m_encoder->SetSrcSubVar(1, i);
+
+            m_encoder->SetDstSubVar(i);
+            m_encoder->Add(m_destination, src[0], src[1]);
+            m_encoder->Push();
+        }
+        return;
+    }
+
+    Binary(EOPCODE_ADD, sources, modifier);
+}
+
 void EmitPass::Mul(const SSource sources[2], const DstModifier& modifier)
 {
     CVariable* src[2];

IGC/Compiler/CISACodeGen/EmitVISAPass.hpp

@@ -101,6 +101,7 @@ class EmitPass : public llvm::FunctionPass
     void Select(const SSource sources[3], const DstModifier& modifier);
     void PredAdd(const SSource& pred, bool invert, const SSource sources[2], const DstModifier& modifier);
     void Mul(const SSource[2], const DstModifier& modifier);
+    void Add(const SSource[2], const DstModifier& modifier);
     void FPTrunc(const SSource[2], const DstModifier& modifier);
     void Powi(const SSource[2], const DstModifier& modifier);
     void Mov(const SSource& source, const DstModifier& modifier);

IGC/Compiler/CISACodeGen/IGCVectorizer.cpp

@@ -186,6 +186,7 @@ bool isBinarySafe(Instruction *I) {
     if (Binary) {
         auto OpCode = Binary->getOpcode();
         Result  |=  OpCode == Instruction::FMul;
+        Result  |=  OpCode == Instruction::FAdd;
     }
     return Result;
 }