Generate bindless access for image.

Change-Id: Id2a276504d15784cb2d33b2610ca57c56cd266a6

Author: itsimbal

IGC/Compiler/Optimizer/OCLBIUtils.h

@@ -125,13 +125,15 @@ namespace IGC
         switch (type)
         {
         case IGC::UAVResourceType:
-        case IGC::BindlessUAVResourceType:
             return UAV;
+        case IGC::BindlessUAVResourceType:
+            return BINDLESS;
         case IGC::SRVResourceType:
             return RESOURCE;
         case IGC::SamplerResourceType:
-        case IGC::BindlessSamplerResourceType:
             return SAMPLER;
+        case IGC::BindlessSamplerResourceType:
+            return BINDLESS_SAMPLER;
         case IGC::OtherResourceType:
             return BUFFER_TYPE_UNKNOWN;
         default:

visa/Gen4_IR.cpp

@@ -6648,6 +6648,10 @@ unsigned G4_RegVar::getByteAddr() const
         return reg.phyReg->asGreg()->getRegNum() * GENX_GRF_REG_SIZ +
             reg.subRegOff * (G4_Type_Table[decl->getElemType()].byteSize);
     }
+    if (reg.phyReg->isA0())
+    {
+        return reg.subRegOff * (G4_Type_Table[Type_UW].byteSize);
+    }
 
     MUST_BE_TRUE(false, ERROR_UNKNOWN);
     return 0;