[llvm] 49def10 - [Attributor] Add time trace support.
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Thu Jul 30 17:18:48 PDT 2020
Author: kuterd
Date: 2020-07-31T03:08:50+03:00
New Revision: 49def10e02e35e56d1249405a650b161245f87b0
URL: https://github.com/llvm/llvm-project/commit/49def10e02e35e56d1249405a650b161245f87b0
DIFF: https://github.com/llvm/llvm-project/commit/49def10e02e35e56d1249405a650b161245f87b0.diff
LOG: [Attributor] Add time trace support.
This patch addes time trace functionality to have a better understanding
of the analysis times.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D84980
Added:
Modified:
llvm/include/llvm/Transforms/IPO/Attributor.h
llvm/lib/Transforms/IPO/Attributor.cpp
Removed:
################################################################################
diff --git a/llvm/include/llvm/Transforms/IPO/Attributor.h b/llvm/include/llvm/Transforms/IPO/Attributor.h
index 0fa9c99a882c..bd6ff03a31fa 100644
--- a/llvm/include/llvm/Transforms/IPO/Attributor.h
+++ b/llvm/include/llvm/Transforms/IPO/Attributor.h
@@ -117,6 +117,7 @@
#include "llvm/Support/Casting.h"
#include "llvm/Support/DOTGraphTraits.h"
#include "llvm/Support/GraphWriter.h"
+#include "llvm/Support/TimeProfiler.h"
#include "llvm/Transforms/Utils/CallGraphUpdater.h"
namespace llvm {
@@ -1001,8 +1002,10 @@ struct Attributor {
return AA;
}
- AA.initialize(*this);
-
+ {
+ TimeTraceScope TimeScope(AA.getName() + "::initialize");
+ AA.initialize(*this);
+ }
// We can initialize (=look at) code outside the current function set but
// not call update because that would again spawn new abstract attributes in
// potentially unconnected code regions (=SCCs).
diff --git a/llvm/lib/Transforms/IPO/Attributor.cpp b/llvm/lib/Transforms/IPO/Attributor.cpp
index 1be3782e77d7..89971cc9c294 100644
--- a/llvm/lib/Transforms/IPO/Attributor.cpp
+++ b/llvm/lib/Transforms/IPO/Attributor.cpp
@@ -931,6 +931,7 @@ bool Attributor::checkForAllReadWriteInstructions(
}
void Attributor::runTillFixpoint() {
+ TimeTraceScope TimeScope("Attributor::runTillFixpoint");
LLVM_DEBUG(dbgs() << "[Attributor] Identified and initialized "
<< DG.SyntheticRoot.Deps.size()
<< " abstract attributes.\n");
@@ -1067,6 +1068,7 @@ void Attributor::runTillFixpoint() {
}
ChangeStatus Attributor::manifestAttributes() {
+ TimeTraceScope TimeScope("Attributor::manifestAttributes");
size_t NumFinalAAs = DG.SyntheticRoot.Deps.size();
unsigned NumManifested = 0;
@@ -1129,6 +1131,7 @@ ChangeStatus Attributor::manifestAttributes() {
}
ChangeStatus Attributor::cleanupIR() {
+ TimeTraceScope TimeScope("Attributor::cleanupIR");
// Delete stuff at the end to avoid invalid references and a nice order.
LLVM_DEBUG(dbgs() << "\n[Attributor] Delete at least "
<< ToBeDeletedFunctions.size() << " functions and "
@@ -1297,6 +1300,8 @@ ChangeStatus Attributor::cleanupIR() {
}
ChangeStatus Attributor::run() {
+ TimeTraceScope TimeScope("Attributor::run");
+
SeedingPeriod = false;
runTillFixpoint();
@@ -1316,6 +1321,8 @@ ChangeStatus Attributor::run() {
}
ChangeStatus Attributor::updateAA(AbstractAttribute &AA) {
+ TimeTraceScope TimeScope(AA.getName() + "::updateAA");
+
// Use a new dependence vector for this update.
DependenceVector DV;
DependenceStack.push_back(&DV);
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