Reduce the RA compilation time - rowSize

Author: bcheng0127

visa/GraphColor.cpp

@@ -107,6 +107,7 @@ Interference::Interference(LivenessAnalysis* l, LiveRange**& lr, unsigned n, uns
     builder(*g.kernel.fg.builder), maxId(n), splitStartId(ns), splitNum(nm),
     liveAnalysis(l)
 {
+    rowSize = maxId / BITS_DWORD + 1;
 }
 
 inline bool Interference::varSplitCheckBeforeIntf(unsigned v1, unsigned v2)
@@ -1578,7 +1579,7 @@ bool Interference::interfereBetween(unsigned v1, unsigned v2) const
     if (useDenseMatrix())
     {
         unsigned col = v2 / BITS_DWORD;
-        return (matrix[v1 * getRowSize() + col] & BitMask[v2 - col * BITS_DWORD]) ? true : false;
+        return (matrix[v1 * rowSize + col] & BitMask[v2 - col * BITS_DWORD]) ? true : false;
     }
     else
     {
@@ -2538,9 +2539,9 @@ void Interference::generateSparseIntfGraph()
         // Iterate over intf graph matrix
         for (unsigned int row = 0; row < numVars; row++)
         {
-            unsigned int rowOffset = row*getRowSize();
+            unsigned int rowOffset = row*rowSize;
             unsigned int colStart = (row + 1) / BITS_DWORD;
-            for (unsigned int j = colStart; j < getRowSize(); j++)
+            for (unsigned int j = colStart; j < rowSize; j++)
             {
                 unsigned int intfBlk = getInterferenceBlk(rowOffset + j);
                 if (intfBlk != 0)

visa/GraphColor.h

@@ -362,6 +362,7 @@ namespace vISA
         LiveRange**& lrs;
         IR_Builder& builder;
         unsigned maxId;
+        unsigned rowSize;
         unsigned splitStartId;
         unsigned splitNum;
         unsigned int* matrix = nullptr;
@@ -413,7 +414,7 @@ namespace vISA
         {
             if (useDenseMatrix())
             {
-                unsigned N = getRowSize() * maxId;
+                unsigned N = rowSize * maxId;
                 matrix = new uint32_t[N];
                 memset(matrix, 0, N * sizeof(int));
             }
@@ -434,7 +435,7 @@ namespace vISA
             sparseIntf.clear();
             if (useDenseMatrix())
             {
-                unsigned N = getRowSize() * maxId;
+                unsigned N = rowSize * maxId;
                 std::memset(matrix, 0, N * sizeof(int));
             }
             else
@@ -453,10 +454,6 @@ namespace vISA
             assert(useDenseMatrix() && "matrix is not initialized");
             return matrix != nullptr ? matrix[idx] : 0;
         }
-        inline unsigned int getRowSize() const
-        {
-            return maxId / BITS_DWORD + 1;
-        }
 
         std::vector<unsigned int>& getSparseIntfForVar(unsigned int id) { return sparseIntf[id]; }
 
@@ -467,7 +464,7 @@ namespace vISA
             if (useDenseMatrix())
             {
                 unsigned col = v2 / BITS_DWORD;
-                matrix[v1 * getRowSize() + col] |= BitMask[v2 - col * BITS_DWORD];
+                matrix[v1 * rowSize + col] |= BitMask[v2 - col * BITS_DWORD];
             }
             else
             {
@@ -483,7 +480,7 @@ namespace vISA
                 MUST_BE_TRUE(sparseIntf.size() == 0, "Updating intf graph matrix after populating sparse intf graph");
 #endif
 
-                matrix[v1 * getRowSize() + col] |= block;
+                matrix[v1 * rowSize + col] |= block;
             }
             else
             {