1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/PrologEpilogInserter.cpp b/llvm/lib/CodeGen/PrologEpilogInserter.cpp
index f449087..ee03eaa 100644
--- a/llvm/lib/CodeGen/PrologEpilogInserter.cpp
+++ b/llvm/lib/CodeGen/PrologEpilogInserter.cpp
@@ -228,6 +228,11 @@ bool PEI::runOnMachineFunction(MachineFunction &MF) {
   FrameIndexVirtualScavenging = TRI->requiresFrameIndexScavenging(MF);
   ORE = &getAnalysis<MachineOptimizationRemarkEmitterPass>().getORE();
 
+  // Spill frame pointer and/or base pointer registers if they are clobbered.
+  // It is placed before call frame instruction elimination so it will not mess
+  // with stack arguments.
+  TFI->spillFPBP(MF);
+
   // Calculate the MaxCallFrameSize value for the function's frame
   // information. Also eliminates call frame pseudo instructions.
   calculateCallFrameInfo(MF);