Rename invariant.group.barrier to launder.invariant.group

Summary:
This is one of the initial commit of "RFC: Devirtualization v2" proposal:
https://docs.google.com/document/d/16GVtCpzK8sIHNc2qZz6RN8amICNBtvjWUod2SujZVEo/edit?usp=sharing

Reviewers: rsmith, amharc, kuhar, sanjoy

Subscribers: arsenm, nhaehnle, javed.absar, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D45111

llvm-svn: 331448

1 files changed, 4 insertions, 4 deletions

diff --git a/clang/lib/CodeGen/CGClass.cpp b/clang/lib/CodeGen/CGClass.cpp
index fb09b4d..3b142d7 100644
--- a/clang/lib/CodeGen/CGClass.cpp
+++ b/clang/lib/CodeGen/CGClass.cpp
@@ -1276,7 +1276,7 @@ void CodeGenFunction::EmitCtorPrologue(const CXXConstructorDecl *CD,
     if (CGM.getCodeGenOpts().StrictVTablePointers &&
         CGM.getCodeGenOpts().OptimizationLevel > 0 &&
         isInitializerOfDynamicClass(*B))
-      CXXThisValue = Builder.CreateInvariantGroupBarrier(LoadCXXThis());
+      CXXThisValue = Builder.CreateLaunderInvariantGroup(LoadCXXThis());
     EmitBaseInitializer(*this, ClassDecl, *B, CtorType);
   }
 
@@ -1293,7 +1293,7 @@ void CodeGenFunction::EmitCtorPrologue(const CXXConstructorDecl *CD,
     if (CGM.getCodeGenOpts().StrictVTablePointers &&
         CGM.getCodeGenOpts().OptimizationLevel > 0 &&
         isInitializerOfDynamicClass(*B))
-      CXXThisValue = Builder.CreateInvariantGroupBarrier(LoadCXXThis());
+      CXXThisValue = Builder.CreateLaunderInvariantGroup(LoadCXXThis());
     EmitBaseInitializer(*this, ClassDecl, *B, CtorType);
   }
 
@@ -1477,11 +1477,11 @@ void CodeGenFunction::EmitDestructorBody(FunctionArgList &Args) {
 
     // Initialize the vtable pointers before entering the body.
     if (!CanSkipVTablePointerInitialization(*this, Dtor)) {
-      // Insert the llvm.invariant.group.barrier intrinsic before initializing
+      // Insert the llvm.launder.invariant.group intrinsic before initializing
       // the vptrs to cancel any previous assumptions we might have made.
       if (CGM.getCodeGenOpts().StrictVTablePointers &&
           CGM.getCodeGenOpts().OptimizationLevel > 0)
-        CXXThisValue = Builder.CreateInvariantGroupBarrier(LoadCXXThis());
+        CXXThisValue = Builder.CreateLaunderInvariantGroup(LoadCXXThis());
       InitializeVTablePointers(Dtor->getParent());
     }