From 66df7361fff74f29d1cae48822288ddd9e9cf0f3 Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@intel.com>
Date: Thu, 14 Mar 2019 01:13:15 +0000
Subject: [PATCH] [ResetMachineFunctionPass] Add visited functions statistics
 info

Adding a "NumFunctionsVisited" for collecting the visited function number.
It can be used to collect function pass rate in some tests,
the pass rate = (NumberVisited - NumberReset)/NumberVisited.
e.g. it can be used for caculating GlobalISel pass rate in Test-Suite.

Patch by Tianyang Zhu (zhutianyang)

Differential Revision: https://reviews.llvm.org/D59285

llvm-svn: 356114
---
 llvm/lib/CodeGen/ResetMachineFunctionPass.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/llvm/lib/CodeGen/ResetMachineFunctionPass.cpp b/llvm/lib/CodeGen/ResetMachineFunctionPass.cpp
index 2e5ff23b4f81..019de6554d2a 100644
--- a/llvm/lib/CodeGen/ResetMachineFunctionPass.cpp
+++ b/llvm/lib/CodeGen/ResetMachineFunctionPass.cpp
@@ -26,6 +26,7 @@ using namespace llvm;
 #define DEBUG_TYPE "reset-machine-function"
 
 STATISTIC(NumFunctionsReset, "Number of functions reset");
+STATISTIC(NumFunctionsVisited, "Number of functions visited");
 
 namespace {
   class ResetMachineFunction : public MachineFunctionPass {
@@ -50,6 +51,7 @@ namespace {
     }
 
     bool runOnMachineFunction(MachineFunction &MF) override {
+      ++NumFunctionsVisited;
       // No matter what happened, whether we successfully selected the function
       // or not, nothing is going to use the vreg types after us. Make sure they
       // disappear.