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[ResetMachineFunction] Add statistic on the number of reset functions.

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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
This commit is contained in:
Quentin Colombet 2016-09-23 18:38:13 +00:00
parent 2b0e1e0a1f
commit 46488e2c5b
1 changed files with 4 additions and 0 deletions
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4
lib/CodeGen/ResetMachineFunctionPass.cpp
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@ -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();