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ftime-trace: Trace loop passes

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

Suggested by Andrea Di Biagio.

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

llvm-svn: 362219
This commit is contained in:
Russell Gallop 2019-05-31 10:14:04 +00:00
parent 1be644abc7
commit 5febc54aae
1 changed files with 3 additions and 0 deletions
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3
lib/Analysis/LoopPass.cpp
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@ -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(Function &F) {
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);