diff options
| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2012-09-28 22:46:07 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2012-09-28 22:46:07 +0000 |
| commit | ef4d5ced04bf0b3d987e6b0e931f43125492f50c (patch) | |
| tree | b918266bedba6722e2d9e2b70049c2ebc39ebac0 /lib/CodeGen | |
| parent | b6d80fe68d30ebd14b20c96643c252c36041df8d (diff) | |
PR13941: Mark all virtual functions as unnamed_addr. It's not possible to
observe their addresses (taking their address gives the vtable slot) so we are
free to merge their definitions.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164864 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/CodeGenModule.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp index 164031a503..d09c1c3260 100644 --- a/lib/CodeGen/CodeGenModule.cpp +++ b/lib/CodeGen/CodeGenModule.cpp @@ -588,6 +588,10 @@ void CodeGenModule::SetLLVMFunctionAttributesForDefinition(const Decl *D, if (isa<CXXConstructorDecl>(D) || isa<CXXDestructorDecl>(D)) F->setUnnamedAddr(true); + if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(D)) + if (MD->isVirtual()) + F->setUnnamedAddr(true); + if (LangOpts.getStackProtector() == LangOptions::SSPOn) F->addFnAttr(llvm::Attribute::StackProtect); else if (LangOpts.getStackProtector() == LangOptions::SSPReq) |