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Re: Reduce startup cost of compiler (patch 2)


Bootstrapped/regtested i686-linux?

Nice! Yes, this is ok.

all_match is write only, though:

+   bool all_match = true;
+   unsigned int i, j;
+
+   gcc_assert (have_regs_of_mode[m]);
+   for (i = 0; i < N_REG_CLASSES; i++)
+     if (contains_reg_of_mode[i][m])
+       for (j = 0; j < N_REG_CLASSES; j++)
+ 	{
+ 	  int cost;
+ 	  if (!contains_reg_of_mode[j][m])
+ 	    cost = 65535;
+ 	  else
+ 	    {
+ 	      cost = REGISTER_MOVE_COST (m, i, j);
+ 	      gcc_assert (cost < 65535);
+ 	    }
+ 	  all_match &= (last_move_cost[i][j] == cost);

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