From fbd601411e6f5cf34cba91acadc47ed84589d637 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <peter@pcc.me.uk>
Date: Fri, 27 Jan 2017 22:55:30 +0000
Subject: [PATCH] Analysis: Add appropriate const qualification to functions in
 TypeMetadataUtils.cpp. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293341 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Analysis/TypeMetadataUtils.h |  5 +++--
 lib/Analysis/TypeMetadataUtils.cpp        | 11 ++++++-----
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/include/llvm/Analysis/TypeMetadataUtils.h b/include/llvm/Analysis/TypeMetadataUtils.h
index c3f688f5d7f..17906ba4e39 100644
--- a/include/llvm/Analysis/TypeMetadataUtils.h
+++ b/include/llvm/Analysis/TypeMetadataUtils.h
@@ -32,14 +32,15 @@ struct DevirtCallSite {
 /// call sites based on the call and return them in DevirtCalls.
 void findDevirtualizableCallsForTypeTest(
     SmallVectorImpl<DevirtCallSite> &DevirtCalls,
-    SmallVectorImpl<CallInst *> &Assumes, CallInst *CI);
+    SmallVectorImpl<CallInst *> &Assumes, const CallInst *CI);
 
 /// Given a call to the intrinsic @llvm.type.checked.load, find all
 /// devirtualizable call sites based on the call and return them in DevirtCalls.
 void findDevirtualizableCallsForTypeCheckedLoad(
     SmallVectorImpl<DevirtCallSite> &DevirtCalls,
     SmallVectorImpl<Instruction *> &LoadedPtrs,
-    SmallVectorImpl<Instruction *> &Preds, bool &HasNonCallUses, CallInst *CI);
+    SmallVectorImpl<Instruction *> &Preds, bool &HasNonCallUses,
+    const CallInst *CI);
 }
 
 #endif
diff --git a/lib/Analysis/TypeMetadataUtils.cpp b/lib/Analysis/TypeMetadataUtils.cpp
index f5675416736..6871e4887c9 100644
--- a/lib/Analysis/TypeMetadataUtils.cpp
+++ b/lib/Analysis/TypeMetadataUtils.cpp
@@ -39,7 +39,7 @@ findCallsAtConstantOffset(SmallVectorImpl<DevirtCallSite> &DevirtCalls,
 
 // Search for virtual calls that load from VPtr and add them to DevirtCalls.
 static void
-findLoadCallsAtConstantOffset(Module *M,
+findLoadCallsAtConstantOffset(const Module *M,
                               SmallVectorImpl<DevirtCallSite> &DevirtCalls,
                               Value *VPtr, int64_t Offset) {
   for (const Use &U : VPtr->uses()) {
@@ -62,10 +62,10 @@ findLoadCallsAtConstantOffset(Module *M,
 
 void llvm::findDevirtualizableCallsForTypeTest(
     SmallVectorImpl<DevirtCallSite> &DevirtCalls,
-    SmallVectorImpl<CallInst *> &Assumes, CallInst *CI) {
+    SmallVectorImpl<CallInst *> &Assumes, const CallInst *CI) {
   assert(CI->getCalledFunction()->getIntrinsicID() == Intrinsic::type_test);
 
-  Module *M = CI->getParent()->getParent()->getParent();
+  const Module *M = CI->getParent()->getParent()->getParent();
 
   // Find llvm.assume intrinsics for this llvm.type.test call.
   for (const Use &CIU : CI->uses()) {
@@ -86,7 +86,8 @@ void llvm::findDevirtualizableCallsForTypeTest(
 void llvm::findDevirtualizableCallsForTypeCheckedLoad(
     SmallVectorImpl<DevirtCallSite> &DevirtCalls,
     SmallVectorImpl<Instruction *> &LoadedPtrs,
-    SmallVectorImpl<Instruction *> &Preds, bool &HasNonCallUses, CallInst *CI) {
+    SmallVectorImpl<Instruction *> &Preds, bool &HasNonCallUses,
+    const CallInst *CI) {
   assert(CI->getCalledFunction()->getIntrinsicID() ==
          Intrinsic::type_checked_load);
 
@@ -96,7 +97,7 @@ void llvm::findDevirtualizableCallsForTypeCheckedLoad(
     return;
   }
 
-  for (Use &U : CI->uses()) {
+  for (const Use &U : CI->uses()) {
     auto CIU = U.getUser();
     if (auto EVI = dyn_cast<ExtractValueInst>(CIU)) {
       if (EVI->getNumIndices() == 1 && EVI->getIndices()[0] == 0) {