[llvm] 80cde02 - [MemCpyOpt] Add separate statistic for call slot optimization (NFC)

[Nikita Popov via llvm-commits]

Author: Nikita Popov
Date: 2020-10-06T18:14:10+02:00
New Revision: 80cde02e85df3f1903f0a04ccccaf0f84c2854d1

URL: https://github.com/llvm/llvm-project/commit/80cde02e85df3f1903f0a04ccccaf0f84c2854d1
DIFF: https://github.com/llvm/llvm-project/commit/80cde02e85df3f1903f0a04ccccaf0f84c2854d1.diff

LOG: [MemCpyOpt] Add separate statistic for call slot optimization (NFC)

Added: 
    

Modified: 
    llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp b/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp
index f14f3d4515dee..68fcf91b3464d 100644
--- a/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp
+++ b/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp
@@ -70,6 +70,7 @@ STATISTIC(NumMemCpyInstr, "Number of memcpy instructions deleted");
 STATISTIC(NumMemSetInfer, "Number of memsets inferred");
 STATISTIC(NumMoveToCpy,   "Number of memmoves converted to memcpy");
 STATISTIC(NumCpyToSet,    "Number of memcpys converted to memset");
+STATISTIC(NumCallSlot,    "Number of call slot optimizations performed");
 
 namespace {
 
@@ -942,6 +943,7 @@ bool MemCpyOptPass::performCallSlotOptzn(Instruction *cpy, Value *cpyDest,
                          LLVMContext::MD_access_group};
   combineMetadata(C, cpy, KnownIDs, true);
 
+  ++NumCallSlot;
   return true;
 }