From: Chris Lattner <sabre@nondot.org>
Date: Tue, 14 Apr 2009 06:32:05 +0000 (+0000)
Subject: give always_inline functions internal linkage.  If they cannot be
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d5ee6677c5f22409039a019accf41ec3937afe99;p=clang

give always_inline functions internal linkage.  If they cannot be
inlined for some reason, then we don't want a strong or even weak
definition.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69031 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index adf5ac2e41..5ef57ffdcc 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -325,7 +325,9 @@ void CodeGenModule::SetFunctionAttributes(const Decl *D,
 static CodeGenModule::GVALinkage 
 GetLinkageForFunctionOrMethodDecl(const Decl *D) {
   if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
-    if (FD->getStorageClass() == FunctionDecl::Static)
+    // "static" and attr(always_inline) functions get internal linkage.
+    if (FD->getStorageClass() == FunctionDecl::Static ||
+        FD->hasAttr<AlwaysInlineAttr>())
       return CodeGenModule::GVA_Internal;
     if (FD->isInline()) {
       if (FD->getStorageClass() == FunctionDecl::Extern)