1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
index 666b276..c4a58f3 100644
--- a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
+++ b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
@@ -1305,6 +1305,7 @@ FunctionCallee llvm::getOrInsertLibFunc(Module *M, const TargetLibraryInfo &TLI,
   case LibFunc_ldexpf:
   case LibFunc_ldexpl:
   case LibFunc_memchr:
+  case LibFunc_memrchr:
   case LibFunc_strchr:
     setArgExtAttr(*F, 1, TLI);
     break;
@@ -1538,6 +1539,15 @@ Value *llvm::emitMemChr(Value *Ptr, Value *Val, Value *Len, IRBuilderBase &B,
       {castToCStr(Ptr, B), Val, Len}, B, TLI);
 }
 
+Value *llvm::emitMemRChr(Value *Ptr, Value *Val, Value *Len, IRBuilderBase &B,
+                        const DataLayout &DL, const TargetLibraryInfo *TLI) {
+  LLVMContext &Context = B.GetInsertBlock()->getContext();
+  return emitLibCall(
+      LibFunc_memrchr, B.getInt8PtrTy(),
+      {B.getInt8PtrTy(), B.getInt32Ty(), DL.getIntPtrType(Context)},
+      {castToCStr(Ptr, B), Val, Len}, B, TLI);
+}
+
 Value *llvm::emitMemCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilderBase &B,
                         const DataLayout &DL, const TargetLibraryInfo *TLI) {
   LLVMContext &Context = B.GetInsertBlock()->getContext();