Enables reading GTPin requests for Compute Shaders

Change-Id: I8d591d65499d85c9b099833127c0c117134404e6

Author: dlei6g

IGC/Compiler/CISACodeGen/ComputeShaderCodeGen.cpp

@@ -463,6 +463,7 @@ void CComputeShader::FillProgram(SComputeShaderKernelProgram* pKernelProgram)
     ProgramOutput()->m_scratchSpaceUsedByShader = m_ScratchSpaceSize;
     CreateGatherMap();
     CreateConstantBufferOutput(pKernelProgram);
+    FillGTPinRequest(pKernelProgram);
 
     pKernelProgram->ConstantBufferLoaded           = m_constantBufferLoaded;
     pKernelProgram->hasControlFlow                 = m_numBlocks > 1 ? true : false;

IGC/Compiler/CodeGenPublic.h

@@ -194,7 +194,7 @@ namespace IGC
         unsigned int            m_InterestingConstantsSize = 0;
 
         // GTPin requests
-        gtpin::igc::igc_init_t m_GTPinRequest;
+        gtpin::igc::igc_init_t m_GTPinRequest = {0};
     };
 
     struct SPixelShaderKernelProgram : SKernelProgram