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

src/compiler/mips64/instruction-selector-mips64.cc

Index: src/compiler/mips64/instruction-selector-mips64.cc
diff --git a/src/compiler/mips64/instruction-selector-mips64.cc b/src/compiler/mips64/instruction-selector-mips64.cc
index 707d3d2c7e6a7d9b6da140ab5fd49abd1ca7bcbc..3eebdb43a59e9d8c5efa1378f18b0d1d1fa596c8 100644
--- a/src/compiler/mips64/instruction-selector-mips64.cc
+++ b/src/compiler/mips64/instruction-selector-mips64.cc
@@ -968,7 +968,7 @@ void InstructionSelector::VisitSwitch(Node* node, BasicBlock* default_branch,
   // Determine whether to issue an ArchTableSwitch or an ArchLookupSwitch
   // instruction.
   size_t table_space_cost = 10 + 2 * value_range;
-  size_t table_time_cost = 10;
+  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 &&