MIPS: Tweak constants to be in favor of table switch.

src/compiler/mips/instruction-selector-mips.cc

Index: src/compiler/mips/instruction-selector-mips.cc
diff --git a/src/compiler/mips/instruction-selector-mips.cc b/src/compiler/mips/instruction-selector-mips.cc
index f59b28d2ce856b1e43bdc13aa1bc1aed83b22270..3c647ed6a1355782238ccbaa612e8c1a09113bc2 100644
--- a/src/compiler/mips/instruction-selector-mips.cc
+++ b/src/compiler/mips/instruction-selector-mips.cc
@@ -784,7 +784,7 @@ void InstructionSelector::VisitSwitch(Node* node, BasicBlock* default_branch,
   // Determine whether to issue an ArchTableSwitch or an ArchLookupSwitch
   // instruction.
   size_t table_space_cost = 9 + value_range;
-  size_t table_time_cost = 9;
+  size_t table_time_cost = 3;
   size_t lookup_space_cost = 2 + 2 * case_count;
   size_t lookup_time_cost = case_count;
   if (case_count > 0 &&