CS loacl id uniform

Only do uniform analysis for cs local IDs when it is linear walkOrder
and ID layout is linear. Skip TileY and QuadTile as their semantice and
implmentation needs to be clarified first.

Author: jgu222

IGC/Compiler/CISACodeGen/WIAnalysis.cpp

@@ -2100,6 +2100,14 @@ void WIAnalysisRunner::CS_checkLocalIDs(Function *F)
         IGC_IS_FLAG_DISABLED(OverrideCsTileLayoutEnable))
         return;
 
+    auto walkOrder = (CS_WALK_ORDER)IGC_GET_FLAG_VALUE(OverrideCsWalkOrder);
+    auto idLayout = (ThreadIDLayout)IGC_GET_FLAG_VALUE(OverrideCsTileLayout);
+    if (idLayout == ThreadIDLayout::TileY ||
+        idLayout == ThreadIDLayout::QuadTile) {
+        // Need clarification on semantics. Skip for now.
+        return;
+    }
+
     Module *M = F->getParent();
     uint32_t X = 0, Y = 0, Z = 0;
     if (GlobalVariable *pX = M->getGlobalVariable("ThreadGroupSize_X")) {
@@ -2130,8 +2138,6 @@ void WIAnalysisRunner::CS_checkLocalIDs(Function *F)
         m_localIDzUniform = true;
     }
 
-    auto walkOrder = (CS_WALK_ORDER)IGC_GET_FLAG_VALUE(OverrideCsWalkOrder);
-    auto idLayout = (ThreadIDLayout)IGC_GET_FLAG_VALUE(OverrideCsTileLayout);
     constexpr uint32_t simdSize = 32;
     if (idLayout == ThreadIDLayout::X)
     {
@@ -2194,15 +2200,6 @@ void WIAnalysisRunner::CS_checkLocalIDs(Function *F)
         }
         return;
     }
-
-    bool isTileY = (idLayout == ThreadIDLayout::TileY &&
-                    walkOrder == CS_WALK_ORDER::WO_YXZ);
-    bool isQuadTile = (idLayout == ThreadIDLayout::QuadTile &&
-                       walkOrder == CS_WALK_ORDER::WO_XYZ);
-    if ((isTileY || isQuadTile) && ((X * Y) % simdSize) == 0) {
-        // combination of first and second dims is multiple of simd siz
-        m_localIDzUniform = true;
-    }
 }
 
 // Set IsLxUniform/IsLyUniform/IsLxUniform to true if they are uniform;