From 0f4c20a1e747e6e38c6ef72a9c8241fe2755c0c5 Mon Sep 17 00:00:00 2001
From: Quentin Colombet <qcolombet@apple.com>
Date: Fri, 23 Sep 2016 18:38:13 +0000
Subject: [ResetMachineFunction] Add statistic on the number of reset
 functions.

As the development of GlobalISel move forward, this statistic should
strictly decrease until it reaches zero. At this point, it would mean
GlobalISel can replace SDISel (at least on the tested inputs :P).

llvm-svn: 282275
---
 llvm/lib/CodeGen/ResetMachineFunctionPass.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'llvm/lib/CodeGen/ResetMachineFunctionPass.cpp')

diff --git a/llvm/lib/CodeGen/ResetMachineFunctionPass.cpp b/llvm/lib/CodeGen/ResetMachineFunctionPass.cpp
index 07a8259..554760ff 100644
--- a/llvm/lib/CodeGen/ResetMachineFunctionPass.cpp
+++ b/llvm/lib/CodeGen/ResetMachineFunctionPass.cpp
@@ -10,6 +10,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/ADT/Statistic.h"
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
@@ -19,6 +20,8 @@ using namespace llvm;
 
 #define DEBUG_TYPE "reset-machine-function"
 
+STATISTIC(NumFunctionsReset, "Number of functions reset");
+
 namespace {
   class ResetMachineFunction : public MachineFunctionPass {
     /// Tells whether or not this pass should emit a fallback
@@ -38,6 +41,7 @@ namespace {
       if (MF.getProperties().hasProperty(
               MachineFunctionProperties::Property::FailedISel)) {
         DEBUG(dbgs() << "Reseting: " << MF.getName() << '\n');
+        ++NumFunctionsReset;
         MF.reset();
         if (EmitFallbackDiag) {
           const Function &F = *MF.getFunction();
-- 
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