vendor/llvm-project/llvmorg-10.0.1-rc1-0-gf79cd71e145

1 files changed, 9 insertions, 2 deletions

diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index f8866ac4f7f64..a735bdd814ed7 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -1847,9 +1847,16 @@ void CodeGenModule::SetFunctionAttributes(GlobalDecl GD, llvm::Function *F,
   else if (const auto *SA = FD->getAttr<SectionAttr>())
      F->setSection(SA->getName());
 
+  // If we plan on emitting this inline builtin, we can't treat it as a builtin.
   if (FD->isInlineBuiltinDeclaration()) {
-    F->addAttribute(llvm::AttributeList::FunctionIndex,
-                    llvm::Attribute::NoBuiltin);
+    const FunctionDecl *FDBody;
+    bool HasBody = FD->hasBody(FDBody);
+    (void)HasBody;
+    assert(HasBody && "Inline builtin declarations should always have an "
+                      "available body!");
+    if (shouldEmitFunction(FDBody))
+      F->addAttribute(llvm::AttributeList::FunctionIndex,
+                      llvm::Attribute::NoBuiltin);
   }
 
   if (FD->isReplaceableGlobalAllocationFunction()) {