[BOLT] Add NamedRegionTimer to inferStaleProfile (#93078)

Author: shawbyoung

bolt/lib/Profile/StaleProfileMatching.cpp

@@ -30,6 +30,7 @@
 #include "llvm/ADT/Bitfields.h"
 #include "llvm/ADT/Hashing.h"
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Timer.h"
 #include "llvm/Support/xxhash.h"
 #include "llvm/Transforms/Utils/SampleProfileInference.h"
 
@@ -42,6 +43,7 @@ using namespace llvm;
 
 namespace opts {
 
+extern cl::opt<bool> TimeRewrite;
 extern cl::OptionCategory BoltOptCategory;
 
 cl::opt<bool>
@@ -707,6 +709,10 @@ void assignProfile(BinaryFunction &BF,
 
 bool YAMLProfileReader::inferStaleProfile(
     BinaryFunction &BF, const yaml::bolt::BinaryFunctionProfile &YamlBF) {
+
+  NamedRegionTimer T("inferStaleProfile", "stale profile inference", "rewrite",
+                     "Rewrite passes", opts::TimeRewrite);
+
   if (!BF.hasCFG())
     return false;
 

bolt/lib/Rewrite/RewriteInstance.cpp

@@ -86,6 +86,7 @@ extern cl::list<std::string> ReorderData;
 extern cl::opt<bolt::ReorderFunctions::ReorderType> ReorderFunctions;
 extern cl::opt<bool> TerminalTrap;
 extern cl::opt<bool> TimeBuild;
+extern cl::opt<bool> TimeRewrite;
 
 cl::opt<bool> AllowStripped("allow-stripped",
                             cl::desc("allow processing of stripped binaries"),
@@ -235,11 +236,6 @@ UseGnuStack("use-gnu-stack",
   cl::ZeroOrMore,
   cl::cat(BoltCategory));
 
-static cl::opt<bool>
-    TimeRewrite("time-rewrite",
-                cl::desc("print time spent in rewriting passes"), cl::Hidden,
-                cl::cat(BoltCategory));
-
 static cl::opt<bool>
 SequentialDisassembly("sequential-disassembly",
   cl::desc("performs disassembly sequentially"),

bolt/lib/Utils/CommandLineOpts.cpp

@@ -179,6 +179,10 @@ cl::opt<bool> TimeOpts("time-opts",
                        cl::desc("print time spent in each optimization"),
                        cl::cat(BoltOptCategory));
 
+cl::opt<bool> TimeRewrite("time-rewrite",
+                          cl::desc("print time spent in rewriting passes"),
+                          cl::Hidden, cl::cat(BoltCategory));
+
 cl::opt<bool> UseOldText(
     "use-old-text",
     cl::desc("re-use space in old .text if possible (relocation mode)"),