vendor/llvm/llvm-trunk-r321017

1 files changed, 7 insertions, 1 deletions

diff --git a/include/llvm/Transforms/Utils/Cloning.h b/include/llvm/Transforms/Utils/Cloning.h
index 2a8b89d862821..178bae76cef64 100644
--- a/include/llvm/Transforms/Utils/Cloning.h
+++ b/include/llvm/Transforms/Utils/Cloning.h
@@ -227,12 +227,18 @@ public:
 /// *inlined* code to minimize the actual inserted code, it must not delete
 /// code in the caller as users of this routine may have pointers to
 /// instructions in the caller that need to remain stable.
+///
+/// If ForwardVarArgsTo is passed, inlining a function with varargs is allowed
+/// and all varargs at the callsite will be passed to any calls to
+/// ForwardVarArgsTo. The caller of InlineFunction has to make sure any varargs
+/// are only used by ForwardVarArgsTo.
 bool InlineFunction(CallInst *C, InlineFunctionInfo &IFI,
                     AAResults *CalleeAAR = nullptr, bool InsertLifetime = true);
 bool InlineFunction(InvokeInst *II, InlineFunctionInfo &IFI,
                     AAResults *CalleeAAR = nullptr, bool InsertLifetime = true);
 bool InlineFunction(CallSite CS, InlineFunctionInfo &IFI,
-                    AAResults *CalleeAAR = nullptr, bool InsertLifetime = true);
+                    AAResults *CalleeAAR = nullptr, bool InsertLifetime = true,
+                    Function *ForwardVarArgsTo = nullptr);
 
 /// \brief Clones a loop \p OrigLoop.  Returns the loop and the blocks in \p
 /// Blocks.