diff --git a/compiler-rt/lib/msan/msan.cpp b/compiler-rt/lib/msan/msan.cpp
--- a/compiler-rt/lib/msan/msan.cpp
+++ b/compiler-rt/lib/msan/msan.cpp
@@ -31,10 +31,6 @@
 #include "ubsan/ubsan_flags.h"
 #include "ubsan/ubsan_init.h"
 
-#ifdef kda_COMMENTED_OUT
-extern "C" void __sanitizer_symbolize_pc(void *pc, const char *fmt, char *out_buf, uptr out_buf_size);
-#endif  /* kda_COMMENTED_OUT */
-
 // ACHTUNG! No system header includes in this file.
 
 using namespace __sanitizer;
diff --git a/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp b/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
--- a/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
@@ -3916,9 +3916,6 @@
   void instrumentAlloca(AllocaInst &I, Instruction *InsPoint = nullptr) {
     if (!InsPoint)
       InsPoint = &I;
-#ifdef kda_COMMENTED_OUT
-    llvm::errs() << I << "-" << *InsPoint << "=" << *(InsPoint->getNextNode()) << '\n';
-#endif  /* kda_COMMENTED_OUT */
     IRBuilder<> IRB(InsPoint->getNextNode());
     IRB.SetCurrentDebugLocation(InsPoint->getDebugLoc());
     const DataLayout &DL = F.getParent()->getDataLayout();