Add uniform/vector decoration to debug info

Change-Id: I5e022d965342931d719d8975369e6b174a30cc23

Author: pratikashar

IGC/Compiler/DebugInfo/DwarfCompileUnit.cpp

@@ -1422,6 +1422,10 @@ DIE *CompileUnit::constructVariableDIE(DbgVariable &DV, bool isScopeAbstract)
             // Copy over references ranges to DotLocDebugEntries
             Offset = DD->CopyDebugLoc(Offset);
             addUInt(VariableDie, dwarf::DW_AT_location, dwarf::DW_FORM_sec_offset, Offset);
+            if (DV.getDecorations().size() > 0)
+            {
+                addString(VariableDie, dwarf::DW_AT_description, DV.getDecorations());
+            }
         }
         else
         {

IGC/Compiler/DebugInfo/DwarfDebug.cpp

@@ -1323,6 +1323,7 @@ void DwarfDebug::collectVariableInfo(const Function *MF, SmallPtrSet<const MDNod
                             write(dotLoc.loc, (unsigned char*)&constValue, lebSize);
                         }
                     }
+                    RegVar->getDecorations().append("u ");
                 }
                 else if (Loc.IsRegister())
                 {
@@ -1420,6 +1421,10 @@ void DwarfDebug::collectVariableInfo(const Function *MF, SmallPtrSet<const MDNod
                             op = llvm::dwarf::DW_OP_deref;
                             write(dotLoc.loc, (uint8_t)op);
                         }
+                        if (Loc.IsVectorized())
+                            RegVar->getDecorations().append("v ");
+                        else
+                            RegVar->getDecorations().append("u ");
                     }
                 }
                 offset += dotLoc.loc.size();

IGC/Compiler/DebugInfo/DwarfDebug.hpp

@@ -147,6 +147,7 @@ namespace IGC
         unsigned DotDebugLocOffset;        // Offset in DotDebugLocEntries.
         DbgVariable *AbsVar = nullptr;     // Corresponding Abstract variable, if any.
         const llvm::Instruction *m_pDbgInst; // DBG_VALUE instruction of the variable.
+        std::string decorations;
 
     public:
         // AbsVar may be NULL.
@@ -213,6 +214,11 @@ namespace IGC
 #endif
         llvm::DIType* getType() const;
 
+        std::string& getDecorations()
+        {
+            return decorations;
+        }
+
     private:
         /// resolve - Look in the DwarfDebug map for the MDNode that
         /// corresponds to the reference.