[upstream-update] SmallPtrSet can now only have at most 32 elements inline.

(cherry picked from commit 88250e0)
(cherry picked from commit 4008ec8)
(cherry picked from commit 3a031eb)

Author: gottesmm

lib/SILOptimizer/IPO/DeadFunctionElimination.cpp

@@ -55,7 +55,7 @@ class FunctionLivenessComputation {
 
   llvm::SmallSetVector<SILFunction *, 16> Worklist;
 
-  llvm::SmallPtrSet<SILFunction *, 100> AliveFunctions;
+  llvm::SmallPtrSet<SILFunction *, 32> AliveFunctions;
 
   /// Checks is a function is alive, e.g. because it is visible externally.
   bool isAnchorFunction(SILFunction *F) {

lib/SILOptimizer/SILCombiner/SILCombine.cpp

@@ -51,9 +51,9 @@ STATISTIC(NumDeadInst, "Number of dead insts eliminated");
 /// worklist (this significantly speeds up SILCombine on code where many
 /// instructions are dead or constant).
 void SILCombiner::addReachableCodeToWorklist(SILBasicBlock *BB) {
-  llvm::SmallVector<SILBasicBlock*, 256> Worklist;
-  llvm::SmallVector<SILInstruction*, 128> InstrsForSILCombineWorklist;
-  llvm::SmallPtrSet<SILBasicBlock*, 64> Visited;
+  llvm::SmallVector<SILBasicBlock *, 256> Worklist;
+  llvm::SmallVector<SILInstruction *, 128> InstrsForSILCombineWorklist;
+  llvm::SmallPtrSet<SILBasicBlock *, 32> Visited;
 
   Worklist.push_back(BB);
   do {