From d737dd2ec62f182afead7bdaf93a502163a8aa75 Mon Sep 17 00:00:00 2001
From: Davide Italiano <davide@freebsd.org>
Date: Tue, 14 Jun 2016 21:44:19 +0000
Subject: [PATCH] [PM] Port WholeProgramDevirt to the new pass manager.

llvm-svn: 272721
---
 llvm/include/llvm/Transforms/IPO/WholeProgramDevirt.h   | 7 +++++++
 llvm/lib/Passes/PassBuilder.cpp                         | 1 +
 llvm/lib/Passes/PassRegistry.def                        | 1 +
 llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp          | 6 ++++++
 llvm/test/Transforms/WholeProgramDevirt/constant-arg.ll | 1 +
 5 files changed, 16 insertions(+)

diff --git a/llvm/include/llvm/Transforms/IPO/WholeProgramDevirt.h b/llvm/include/llvm/Transforms/IPO/WholeProgramDevirt.h
index b086d3512e62..142e01e3cdcd 100644
--- a/llvm/include/llvm/Transforms/IPO/WholeProgramDevirt.h
+++ b/llvm/include/llvm/Transforms/IPO/WholeProgramDevirt.h
@@ -15,6 +15,8 @@
 #ifndef LLVM_TRANSFORMS_IPO_WHOLEPROGRAMDEVIRT_H
 #define LLVM_TRANSFORMS_IPO_WHOLEPROGRAMDEVIRT_H
 
+#include "llvm/IR/Module.h"
+#include "llvm/IR/PassManager.h"
 #include <cassert>
 #include <cstdint>
 #include <utility>
@@ -210,6 +212,11 @@ void setAfterReturnValues(MutableArrayRef<VirtualCallTarget> Targets,
                           int64_t &OffsetByte, uint64_t &OffsetBit);
 
 } // end namespace wholeprogramdevirt
+
+struct WholeProgramDevirtPass : public PassInfoMixin<WholeProgramDevirtPass> {
+  PreservedAnalyses run(Module &M);
+};
+
 } // end namespace llvm
 
 #endif // LLVM_TRANSFORMS_IPO_WHOLEPROGRAMDEVIRT_H
diff --git a/llvm/lib/Passes/PassBuilder.cpp b/llvm/lib/Passes/PassBuilder.cpp
index a519a657ae71..b629ac7e61c1 100644
--- a/llvm/lib/Passes/PassBuilder.cpp
+++ b/llvm/lib/Passes/PassBuilder.cpp
@@ -63,6 +63,7 @@
 #include "llvm/Transforms/IPO/Internalize.h"
 #include "llvm/Transforms/IPO/SCCP.h"
 #include "llvm/Transforms/IPO/StripDeadPrototypes.h"
+#include "llvm/Transforms/IPO/WholeProgramDevirt.h"
 #include "llvm/Transforms/InstCombine/InstCombine.h"
 #include "llvm/Transforms/InstrProfiling.h"
 #include "llvm/Transforms/PGOInstrumentation.h"
diff --git a/llvm/lib/Passes/PassRegistry.def b/llvm/lib/Passes/PassRegistry.def
index 5e4b76042006..06892cb52b81 100644
--- a/llvm/lib/Passes/PassRegistry.def
+++ b/llvm/lib/Passes/PassRegistry.def
@@ -60,6 +60,7 @@ MODULE_PASS("print-lcg", LazyCallGraphPrinterPass(dbgs()))
 MODULE_PASS("rpo-functionattrs", ReversePostOrderFunctionAttrsPass())
 MODULE_PASS("sample-profile", SampleProfileLoaderPass())
 MODULE_PASS("strip-dead-prototypes", StripDeadPrototypesPass())
+MODULE_PASS("wholeprogramdevirt", WholeProgramDevirtPass())
 MODULE_PASS("verify", VerifierPass())
 #undef MODULE_PASS
 
diff --git a/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp b/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp
index 315de83ec398..4a80e4f11c9e 100644
--- a/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp
+++ b/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp
@@ -280,6 +280,12 @@ ModulePass *llvm::createWholeProgramDevirtPass() {
   return new WholeProgramDevirt;
 }
 
+PreservedAnalyses WholeProgramDevirtPass::run(Module &M) {
+  if (!DevirtModule(M).run())
+    return PreservedAnalyses::all();
+  return PreservedAnalyses::none();
+}
+
 void DevirtModule::buildBitSets(
     std::vector<VTableBits> &Bits,
     DenseMap<Metadata *, std::set<BitSetInfo>> &BitSets) {
diff --git a/llvm/test/Transforms/WholeProgramDevirt/constant-arg.ll b/llvm/test/Transforms/WholeProgramDevirt/constant-arg.ll
index ea72d16930af..e26759faedca 100644
--- a/llvm/test/Transforms/WholeProgramDevirt/constant-arg.ll
+++ b/llvm/test/Transforms/WholeProgramDevirt/constant-arg.ll
@@ -1,4 +1,5 @@
 ; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s
+; RUN: opt -S -passes=wholeprogramdevirt %s | FileCheck %s
 
 target datalayout = "e-p:64:64"
 target triple = "x86_64-unknown-linux-gnu"