Removing FuseTypedWriteInIGC and merging with FuseTypedWrite

Removing FuseTypedWriteInIGC and merging with FuseTypedWrite

Author: srividyakarumuri

IGC/Compiler/CISACodeGen/EmitVISAPass.cpp

@@ -14009,7 +14009,7 @@ void EmitPass::emitTypedWrite(llvm::Instruction* pInsn)
                 m_encoder->SetDstSubVar(3);
                 m_encoder->Copy(pPayload[i], pSrc_W);
                 m_encoder->Push();
-                if (IGC_IS_FLAG_DISABLED(FuseTypedWriteInIGC))
+                if (!m_currShader->m_Platform->canFuseTypedWrite())
                 {
                     setSIMDSizeMask(m_encoder, m_currShader, i);
                     m_encoder->SetSrcSubVar(0, i);
@@ -14021,7 +14021,7 @@ void EmitPass::emitTypedWrite(llvm::Instruction* pInsn)
                     m_encoder->Push();
                 }
             }
-            if (IGC_IS_FLAG_ENABLED(FuseTypedWriteInIGC))
+            if (m_currShader->m_Platform->canFuseTypedWrite())
             {
                 for (uint i = 0; i < numInst; ++i)
                 {

IGC/Compiler/CISACodeGen/Platform.hpp

@@ -660,7 +660,7 @@ bool NeedsHDCFenceBeforeEOTInPixelShader() const
 
 bool canFuseTypedWrite() const
 {
-    return IGC_IS_FLAG_ENABLED(FuseTypedWrite);
+    return false;
 }
 
 unsigned int getMaxNumberHWThreadForEachWG() const

IGC/common/igc_flags.h

@@ -450,8 +450,7 @@ DECLARE_IGC_REGKEY(bool, ForceMixMode, false, "force enable mix mode even on pla
 DECLARE_IGC_REGKEY(bool, DisableFDIV, false, "Disable fdiv support", false)
 DECLARE_IGC_REGKEY(bool, EmulateFDIV, false, "Emulate fdiv instructions", false)
 DECLARE_IGC_REGKEY(bool, UpConvertF16Sampler, true, "up-convert fp16 sampler mesasge to return fp32", false)
-DECLARE_IGC_REGKEY(bool, FuseTypedWrite, false, "Enable fusing of simd8 typed write", false)
-DECLARE_IGC_REGKEY(bool, FuseTypedWriteInIGC, false, "Enable fusing of simd8 typed write", false)
+DECLARE_IGC_REGKEY(bool, FuseTypedWrite, true, "Enable fusing of simd8 typed write", false)
 DECLARE_IGC_REGKEY(bool, EnableUndefAlphaOutputAsRed, true, "Output red for undefined alpha output", false)
 DECLARE_IGC_REGKEY(bool, EnableHalfPromotion, true, "Enable pass that replaces instructions using halfs with corresponding float counterparts for pre-SKL", false)
 DECLARE_IGC_REGKEY(bool, ForceHalfPromotion, false, "Force enable pass that replaces instructions using halfs with corresponding float counterparts", false)