[llvm] r362219 - ftime-trace: Trace loop passes

[Russell Gallop via llvm-commits]

Author: russell_gallop
Date: Fri May 31 03:14:04 2019
New Revision: 362219

URL: http://llvm.org/viewvc/llvm-project?rev=362219&view=rev
Log:
ftime-trace: Trace loop passes

These can take a significant amount of time in some builds.

Suggested by Andrea Di Biagio.

Differential Revision: https://reviews.llvm.org/D62666

Modified:
    llvm/trunk/lib/Analysis/LoopPass.cpp

Modified: llvm/trunk/lib/Analysis/LoopPass.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/LoopPass.cpp?rev=362219&r1=362218&r2=362219&view=diff
==============================================================================
--- llvm/trunk/lib/Analysis/LoopPass.cpp (original)
+++ llvm/trunk/lib/Analysis/LoopPass.cpp Fri May 31 03:14:04 2019
@@ -22,6 +22,7 @@
 #include "llvm/IR/PassTimingInfo.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/Timer.h"
+#include "llvm/Support/TimeProfiler.h"
 #include "llvm/Support/raw_ostream.h"
 using namespace llvm;
 
@@ -209,6 +210,8 @@ bool LPPassManager::runOnFunction(Functi
     for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
       LoopPass *P = getContainedPass(Index);
 
+      llvm::TimeTraceScope LoopPassScope("RunLoopPass", P->getPassName());
+
       dumpPassInfo(P, EXECUTION_MSG, ON_LOOP_MSG,
                    CurrentLoop->getHeader()->getName());
       dumpRequiredSet(P);